If you’re considering setting up a greenhouse in your backyard, you may be wondering whether or not it’s necessary to put a tarp underneath it. The answer to this question depends on various factors, including the location, type of soil, and the purpose of your greenhouse. In this article, we will explore the advantages and disadvantages of having a tarp under your greenhouse, helping you make an informed decision to ensure the success of your gardening endeavors. So, let’s get started and find out if putting a tarp under your greenhouse is a wise choice!”
Benefits of Using a Tarp Under a Greenhouse
Prevents Weed Growth
Using a tarp under your greenhouse can effectively prevent weed growth. By creating a barrier between the ground and the greenhouse, the tarp inhibits the growth of unwanted weeds that can compete with your plants for nutrients and water. This helps to create a healthier and more productive growing environment.
A tarp under your greenhouse can greatly improve drainage, especially if you have heavy clay soil or are located in an area with high rainfall. The tarp acts as a waterproof barrier, preventing water from seeping into the ground and keeping your greenhouse floor dry. This promotes better drainage and reduces the risk of waterlogging, which can be detrimental to plant health.
Prevents Soil Erosion
Soil erosion can be a concern in areas with sloping terrain or heavy rainfall. By using a tarp under your greenhouse, you can effectively protect the soil from eroding and being washed away during heavy downpours. The tarp acts as a protective layer, preventing erosion and preserving the integrity of your soil.
Reduces Water Runoff
In addition to preventing soil erosion, a tarp under your greenhouse can also reduce water runoff. When water falls on the roof of your greenhouse, it can create a concentrated flow that washes away soil and nutrients from your garden beds. By directing the water away from your plants, the tarp helps to conserve water and minimize the loss of valuable resources.
Increases Temperature Stability
A tarp under your greenhouse can help to increase temperature stability within the structure. By creating a layer of insulation between the ground and your plants, the tarp helps to regulate the temperature inside the greenhouse. This can be particularly beneficial in regions with extreme weather conditions, as the tarp helps to buffer against temperature fluctuations and provide a more stable environment for your plants.
Protects the Greenhouse Floor
The use of a tarp under your greenhouse provides an added layer of protection for the greenhouse floor. It shields the floor from potential damage caused by sharp objects, roots, or pests that may find their way into the soil. This helps to prolong the lifespan of your greenhouse and ensures that the floor remains in good condition for years to come.
Prevents Pests and Rodents
A tarp under your greenhouse acts as a barrier against pests and rodents that may try to invade your growing space. By covering the ground, the tarp makes it difficult for pests to burrow or access your plants from below. This can help to prevent infestations and minimize the need for chemical treatments, creating a healthier and more eco-friendly environment for your garden.
Saves Time and Effort in Cleaning
Having a tarp under your greenhouse can save you time and effort in cleaning and maintenance. The tarp helps to contain any debris or fallen leaves, making it easier to clean and sweep your greenhouse floor. It also provides a clear separation between the growing area and the ground, making it simpler to maintain a neat and organized workspace.
Serves as a Barrier against Soil Contamination
One of the key benefits of using a tarp under your greenhouse is that it acts as a barrier against soil contamination. If you are growing edible crops or have concerns about the quality of your soil, a tarp can help to prevent contaminants, such as chemicals or pollutants, from seeping into the ground and affecting your plants. This allows you to have greater control over the quality and safety of your produce.
Provides a Cleaner and More Organized Workspace
Lastly, using a tarp under your greenhouse provides a cleaner and more organized workspace. The tarp creates a defined area for your greenhouse, separating it from the surrounding ground. This delineation can help to visually organize your growing space and provide a cleaner and more aesthetically pleasing environment for both working and showcasing your plants.
Considerations Before Using a Tarp Under a Greenhouse
Type of Greenhouse
Before deciding to use a tarp under your greenhouse, consider the type of greenhouse you have. Different types of greenhouses may require specific considerations. For example, a hoop house with a plastic covering may have different requirements compared to a glass greenhouse.
Type of Soil
The type of soil in your greenhouse should also be taken into account. Some soils have better drainage properties and may not require additional measures, while others may benefit from the use of a tarp to improve drainage. Understanding the characteristics of your soil can help determine whether a tarp is necessary and what type of tarp would be most suitable.
Local Climate Conditions
The local climate conditions in your area play a significant role in the effectiveness of using a tarp under your greenhouse. Areas with high rainfall or extreme temperature fluctuations may benefit more from the use of a tarp to regulate temperature and improve drainage. Consider the specific climate conditions in your area and how they may impact your greenhouse before making a decision.
Purpose of the Greenhouse
The purpose of your greenhouse should also be considered. Are you primarily growing ornamental plants, vegetables, or delicate seedlings? Different plants have different requirements, and a tarp under a greenhouse may be more beneficial for certain types of gardening. Evaluate your goals and how a tarp may support them.
Another factor to consider is the cost implications of using a tarp under your greenhouse. While a tarp is generally an affordable option, it still adds to the overall cost of setting up and maintaining your greenhouse. Assess your budget and determine if the benefits outweigh the additional expense.
Installation and Maintenance Challenges
Installing and maintaining a tarp under a greenhouse may pose some challenges, depending on the specific setup and your level of experience. Consider the time, effort, and resources required for proper installation and ongoing maintenance. Assess your capabilities and willingness to take on these tasks.
While there are numerous benefits to using a tarp under your greenhouse, it’s important to consider any potential drawbacks as well. For example, if not properly installed or maintained, a tarp may create issues such as poor ventilation or inadequate drainage. Evaluate these potential drawbacks and assess if you have the knowledge or support to address them effectively.
Compatibility with Other Greenhouse Accessories
If you have other accessories in your greenhouse, such as heating systems or irrigation setups, consider how the tarp may interact with these components. Ensure that the tarp does not interfere with the function or efficiency of other greenhouse accessories. Seek expert advice if necessary to ensure compatibility.
Potential Impact on Groundwater
Using a tarp under your greenhouse may have implications for groundwater, especially if you are using certain materials or installation methods. Take into account any regulations or environmental concerns related to groundwater contamination in your area. Implement appropriate measures to minimize any potential impact.
Optimal Tarps for Greenhouse Use
Heavy-Duty Polyethylene Tarps
Heavy-duty polyethylene tarps are a popular choice for greenhouse use due to their durability and resistance to harsh weather conditions. They are typically waterproof, UV-resistant, and tear-resistant, making them suitable for long-term use.
UV-Resistant Polyvinyl Chloride (PVC) Tarps
UV-resistant PVC tarps are another excellent option for greenhouse applications. They offer superior UV protection, ensuring that your greenhouse and plants are shielded from harmful rays. PVC tarps are also known for their strength and resistance to punctures.
Woven Polypropylene Tarps
Woven polypropylene tarps are lightweight yet robust, making them a versatile option for greenhouse use. They are resistant to tearing and provide good protection against moisture and UV rays. Woven polypropylene tarps are often breathable, allowing for proper airflow and ventilation within the greenhouse.
Clear Polyethylene Greenhouse Ground Covers
Clear polyethylene greenhouse ground covers are specifically designed to provide a transparent barrier between the ground and the greenhouse. They allow natural light to penetrate while still offering protection against weeds, pests, and soil erosion. Clear polyethylene tarps are lightweight and easy to install.
Insulated tarps are designed to provide both insulation and protection against external elements. They are typically made from multiple layers of material, including insulation material such as foam or Mylar. Insulated tarps help to maintain a stable temperature within the greenhouse, making them ideal for regions with extreme weather conditions.
Custom-made tarps offer the advantage of being specifically tailored to your greenhouse’s dimensions and requirements. By opting for a custom-made tarp, you can ensure a perfect fit and maximize its effectiveness. Custom-made tarps may be more expensive than standard options but can provide a more precise solution.
Reinforced Corner Tarps
Reinforced corner tarps feature reinforced corners with grommets, allowing for easy installation and secure attachment to the ground or the greenhouse structure. These tarps provide added strength and stability, ensuring that they stay in place even in windy conditions.
Breathable and Moisture-Resistant Tarps
Breathable and moisture-resistant tarps are designed to allow airflow while still protecting your greenhouse floor. These tarps are especially useful in humid environments, as they prevent excess moisture buildup while keeping weeds and pests at bay.
Ripstop tarps are made from a special fabric that is woven with reinforced fibers or threads, making them resistant to tearing and punctures. This feature ensures the longevity of the tarp and provides added protection against accidental damage.
Blackout Tarps for Light Control
Blackout tarps are specifically designed to block out light, making them ideal for light-sensitive plants or for growers who want to control the amount of illumination received by their crops. These tarps can be fully or partially deployed, allowing for flexible light management within the greenhouse.
Installation Methods for Greenhouse Tarps
Laying the Tarp Directly on the Ground
One of the simplest installation methods for greenhouse tarps is to lay the tarp directly on the ground. This method is best suited for flat or leveled surfaces. Ensure that the tarp is properly stretched out and covers the entire area of your greenhouse. Use heavy objects or soil to secure the edges and prevent the tarp from getting blown away.
Using a Sand or Gravel Base
For areas with poor drainage, using a sand or gravel base can improve the effectiveness of a tarp under your greenhouse. Start by leveling the ground and then lay a thin layer of sand or gravel. Place the tarp over the sand or gravel and secure the edges with stakes or pins. This method allows for better drainage and prevents water from pooling under your greenhouse.
Creating Raised Beds
Creating raised beds is another effective installation method for greenhouse tarps, especially if you have heavy clay soil or are concerned about drainage. Build raised beds using treated wood or other suitable materials. Lay the tarp over the raised beds, ensuring it covers the entire area. Secure the tarp to the sides of the raised beds using staples or other fasteners.
Securing the Tarp Using Stakes or Pins
Securing the tarp using stakes or pins is a common method that provides stability and prevents movement. Begin by laying the tarp over the ground and then secure the edges by inserting stakes or pins through the grommets or eyelets along the edges. Space the stakes or pins evenly to ensure the tarp remains taut and properly anchored.
Attaching the Tarp to the Greenhouse Structure
Attaching the tarp to the greenhouse structure can provide additional stability and prevent shifting or flapping during strong winds. You can use bungee cords, ropes, or clips to secure the tarp to the greenhouse frame. Ensure that the tarp is fastened tightly to avoid any gaps or sagging.
Using Bungee Cords or Ratchet Straps
Bungee cords and ratchet straps are excellent tools for securing a tarp under a greenhouse. They offer flexibility and allow for easy adjustment and tightening. Attach the bungee cords or ratchet straps to the grommets or eyelets on the tarp and hook them onto the greenhouse frame, ensuring a secure connection.
Sealing the Edges of the Tarp
To further enhance the effectiveness of a tarp under your greenhouse, seal the edges to prevent any gaps or entry points for pests or rodents. You can use waterproof and weather-resistant tape or adhesive specifically designed for tarp repair. Ensure that the edges are tightly sealed to create a barrier against unwanted intruders.
Incorporating Drainage Systems
To optimize drainage, consider incorporating drainage systems into your greenhouse setup. This may involve installing French drains, gravel trenches, or perforated pipes that help to direct excess water away from the greenhouse and prevent waterlogging. Consult with a professional if you’re unsure about implementing drainage systems.
Considering Ventilation Requirements
When installing a tarp under your greenhouse, consider the ventilation requirements of your plants. Ensure that the tarp doesn’t obstruct airflow or prevent proper ventilation. If necessary, cut ventilation openings into the tarp or use adjustable fasteners that allow you to easily adjust the airflow within the greenhouse.
Maintenance and Care for Greenhouse Tarps
Regular Inspection for Tears or Damage
Regularly inspect your greenhouse tarp for any signs of tears, punctures, or damage. Small tears or holes can quickly escalate and compromise the integrity of the tarp. Promptly repair any damage using specialized tarp repair tapes or patches to prevent further deterioration.
Cleaning and Sanitizing the Tarp
Cleaning and sanitizing your greenhouse tarp is essential to maintain a healthy growing environment. Remove any debris or fallen leaves regularly and rinse the tarp with water to remove dust and dirt. For stubborn stains or build-up, use a mild soap solution and a soft brush. Rinse the tarp thoroughly and allow it to dry completely before reinstalling.
Preventing Mold and Mildew Growth
To prevent mold and mildew growth on your greenhouse tarp, ensure proper ventilation and minimize excess moisture. Avoid overwatering your plants and maintain a moderate humidity level within the greenhouse. If mold or mildew does appear, clean it with a diluted bleach solution or a commercial mold and mildew remover.
Replacing Damaged or Worn-Out Tarps
Over time, your greenhouse tarp may become worn out or damaged beyond repair. Inspect the tarp regularly, especially before each growing season, and assess its overall condition. If you find significant damage or signs of deterioration, replace the tarp promptly to ensure continued protection and functionality.
Proper Storage During Offseason
During the offseason or when not in use, properly store your greenhouse tarp to prolong its lifespan. Ensure that the tarp is clean and dry before folding or rolling it. Store it in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid storing the tarp in areas where it may be susceptible to pests or rodents.
Specific Care Instructions Based on Tarp Material
Different tarp materials may have specific care instructions to maintain their performance. Refer to the manufacturer’s guidelines or the tarp’s packaging for any recommended cleaning methods or maintenance tips. Following these instructions will help ensure that your greenhouse tarp performs optimally and has a longer lifespan.
Adjusting the Tarp Position for Optimal Sun Exposure
To maximize sun exposure for your plants, consider adjusting the position of the tarp as the sun’s angle changes throughout the year. By shifting the tarp’s alignment or adjusting the height, you can optimize the amount of sunlight that reaches your plants. This is particularly important for greenhouse setups that rely heavily on natural light.
Monitoring for Weed Growth
Despite the preventative measures of using a tarp, some determined weeds may still find a way to grow. Regularly monitor your greenhouse for any signs of weed growth and promptly address them. Hand-pulling or using organic weed control methods can help keep weed infestations in check.
Managing Water Drainage and Runoff
Continuously monitor the water drainage and runoff within your greenhouse to prevent any blockages or waterlogging. Clear any debris or obstructions from the drainage systems and check that the tarp is properly secured to prevent water from seeping under the tarp. Proper water management is critical to maintaining a healthy growing environment.
Experts’ Opinions on Using Tarps Under a Greenhouse
Advantages Highlighted by Experts
Experts in the field of greenhouse gardening frequently highlight the numerous advantages of using tarps under a greenhouse. They emphasize the benefits of improved drainage, weed prevention, protection against pests, and enhanced temperature stability. By creating a controlled environment, tarps can help optimize plant growth and productivity, enabling gardeners to achieve better results.
Disadvantages Mentioned by Experts
While the advantages of using tarps under a greenhouse are substantial, experts also mention a few potential disadvantages. These include the challenge of proper installation to ensure optimal effectiveness, the need for regular maintenance to prevent damage or deterioration, and the potential for reduced airflow if not properly accounted for in the greenhouse design.
Key Factors to Consider
Experts suggest considering key factors such as the specific greenhouse setup, climate conditions, and intended purpose of the greenhouse when deciding whether to use a tarp. Matching the tarp material and installation method to the unique requirements of your greenhouse can enhance its overall performance and success.
Recommendations for Specific Greenhouse Setups
Experts often provide tailored recommendations based on different greenhouse setups. For example, they may suggest using insulated tarps for cold climates or blackout tarps for light-sensitive plants. Consulting with experts who specialize in greenhouse design and management can provide valuable insights into specific requirements for your greenhouse setup.
Case Studies of Successful Tarp Implementation
Case studies detailing successful tarp implementations in various greenhouse environments can serve as valuable examples and sources of inspiration. These case studies showcase how different tarp materials, installation methods, and maintenance practices have benefitted specific greenhouse operations. Reviewing case studies can help you understand the real-world impact of using tarps under a greenhouse.
Comparisons of Tarp Alternatives
Experts often offer comparisons between greenhouse tarps and alternative ground cover options. These comparisons can help you weigh the pros and cons of using a tarp against other materials such as landscape fabric, gravel, or concrete. Understanding the different features, benefits, and limitations of each option will assist you in making an informed decision.
Common Questions and Concerns About Using Tarps
Will a Tarp Block Sunlight from Reaching the Plants?
A properly installed tarp under a greenhouse should not block an excessive amount of sunlight from reaching the plants. However, factors such as the type of tarp material, tarp color, and installation method can influence the amount of light transmission. It’s crucial to choose an appropriate tarp material and consider how it may affect light penetration.
Can a Tarp Affect the Temperature Inside the Greenhouse?
A tarp under a greenhouse can have a positive impact on temperature stability. The thermal insulation provided by some tarp materials can help regulate the temperature inside the greenhouse and protect plants from extreme heat or cold. However, the specific tarp material, color, and ventilation should be considered to ensure optimal temperature control.
What About Condensation and Humidity?
Condensation and humidity levels within a greenhouse can be influenced by various factors, including the use of a tarp. While tarps can help reduce excess moisture retention, it’s essential to monitor and manage humidity levels to prevent issues such as mold or fungal growth. Proper ventilation, watering practices, and air circulation systems can help maintain ideal humidity conditions.
Can Tarps Enhance or Hinder Plant Growth?
When used appropriately, tarps can enhance plant growth by providing a controlled and protected environment. They can help regulate temperature, prevent weed competition, and protect against pests and rodents. However, it’s important to choose the right tarp material, ensure proper installation, and maintain optimal growing conditions to maximize plant growth.
Can Tarps Cause Excess Moisture Retention?
While some tarps may retain excess moisture, particularly if not properly installed or ventilated, this can be managed with appropriate measures. Proper airflow, adequate drainage systems, and monitoring soil moisture levels can help mitigate any potential issues related to excess moisture retention.
How Long Do Greenhouse Tarps Typically Last?
The lifespan of greenhouse tarps can vary depending on the quality of the material, installation, and environmental conditions. High-quality tarps made from durable materials can last several years with proper care and maintenance. Regular inspection, cleaning, and prompt repair of any damage can help prolong the lifespan of your greenhouse tarp.
Are Tarps a Cost-Effective Option?
Tarps are generally considered a cost-effective option for greenhouse owners. Compared to more permanent flooring or ground cover options, tarps offer flexibility, affordability, and versatility. They provide many benefits at a fraction of the cost, making them an attractive choice for both commercial and hobbyist greenhouse operators.
Can Tarps Be Used for Year-Round Greenhouses?
Tarps can be used for year-round greenhouses, provided that the chosen tarp material and installation method can withstand seasonal variations. Insulated tarps, clear polyethylene covers, or customizable tarp options are often recommended for year-round greenhouse use. Ensure proper insulation and ventilation to maintain optimal growing conditions throughout the year.
Are There Any Environmental Considerations?
When choosing a tarp material for your greenhouse, consider the environmental impact. Look for tarps made from eco-friendly materials or those that can be recycled or repurposed once they have reached the end of their lifespan. It’s also important to install and maintain your tarp in an environmentally responsible manner to minimize any negative effects on the surrounding ecosystem.
Do Tarps Affect Greenhouse Aesthetics?
The impact of tarps on greenhouse aesthetics depends on personal preferences and the specific design of the greenhouse. While tarps can create a visually organized and clean workspace, some may find them less visually appealing. If aesthetics are a significant concern, explore alternative ground cover options or choose a tarp color that complements the overall greenhouse design.
Alternative Ground Cover Options for Greenhouses
Landscape fabric is a versatile ground cover option that helps prevent weed growth and improves drainage. It allows air and moisture to penetrate while blocking out sunlight, effectively suppressing weed growth in your greenhouse.
Gravel or Rock Surfaces
Gravel or rock surfaces can provide a stable and low-maintenance ground cover option for your greenhouse. They offer excellent drainage and help prevent weed growth. However, it’s important to ensure proper site preparation and choose the appropriate size and type of gravel or rocks for optimal functionality.
Concrete or Paving Stones
Concrete or paving stones offer a permanent and durable ground cover option for greenhouses. They provide a solid and easy-to-clean surface, ideal for high-traffic areas or heavy equipment. However, this option may require professional installation and can be more expensive compared to other alternatives.
Wood Chips or Mulch
Wood chips or mulch can be used as a ground cover option that provides insulation, weed suppression, and improved moisture retention. As wood chips decompose, they contribute organic matter to the soil, enriching it over time. However, they may require occasional replenishment and can attract pests if not properly managed.
Rubber matting is a convenient and durable ground cover option for greenhouse floors. It offers an anti-slip surface and is easy to clean. Rubber mats also provide moderate insulation and help prevent weed growth. Choose rubber mats designed specifically for greenhouse use to ensure they are resistant to moisture and UV damage.
Natural Grass or Sod
Natural grass or sod can be used as a ground cover option for casual or hobbyist greenhouse setups. This option provides a visually appealing green space and can help reduce the greenhouse’s carbon footprint. However, it requires regular maintenance, including watering, mowing, and fertilizing.
Permanent Greenhouse Flooring
For those seeking a long-lasting and aesthetically pleasing ground cover option, permanent flooring materials such as tiles, stone, or epoxy-coated concrete may be considered. Permanent flooring provides a solid and professional look, but it’s important to ensure proper drainage and construction to avoid potential issues.
Real-World Examples of Greenhouse Tarp Applications
Commercial Greenhouse Operations
Commercial greenhouse operations worldwide have successfully implemented tarps as ground covers in their growing spaces. From flower farms to vegetable nurseries, tarps have proven to be cost-effective, efficient, and versatile. They help optimize growing conditions, prevent weed infestations, and protect crops from pests and rodents.
Community and Educational Greenhouse Projects
Community and educational greenhouse projects have embraced the use of tarps under their structures. These projects often aim to provide learning opportunities and fresh produce to local communities. Tarps offer these initiatives the flexibility to adapt to specific needs, low-cost maintenance, and effective control over growing conditions, supporting their long-term sustainability.
Personal Hobby Gardens
In personal hobby gardens, tarps have become a popular choice to protect and enhance greenhouse functionality. They allow hobby gardeners to create controlled environments tailored to their specific plant preferences and growing goals. Tarps help hobbyist growers maximize their limited space, increase productivity, and manage resources efficiently.
Research Facilities and Botanical Gardens
Research facilities and botanical gardens rely on tarps to create optimal growth conditions for their plant collections. Tarps provide a controlled environment that helps facilitate scientific research, conservation efforts, and educational programs. They protect delicate and rare plants while supporting research goals and preserving botanical diversity.
Integrating Tarps with Aquaponics Systems
One of the innovative uses of tarps in greenhouses is in conjunction with aquaponics systems. Tarps can be utilized to separate aquaponics grow beds from the fish tank, preventing moisture transfer while providing protection against external contaminants. This helps maintain water quality and optimize the functioning of aquaponics systems.
Indoor Microgreen or Hydroponic Setups
Tarps are also commonly used in indoor microgreen or hydroponic setups. These compact growing systems often require precise control over growing conditions, including light exposure, temperature, and moisture. Tarps provide an effective way to regulate and optimize these factors, allowing for successful microgreen and hydroponic cultivation.
Urban and Rooftop Gardening Initiatives
Greenhouse gardening initiatives in urban and rooftop settings have successfully utilized tarps to transform limited spaces into productive growing environments. Tarps offer flexibility for installation on various surfaces and can be customized to suit specific space constraints. They allow urban gardeners to maximize the use of rooftops, balconies, or other available areas for sustainable food production.
Creative Uses of Tarps for Greenhouse Extensions
Innovative gardeners and greenhouse owners have found creative ways to extend their growing spaces using tarps. By utilizing tarps as temporary extensions, they can increase the square footage of their greenhouses during peak growing seasons or accommodate specific plant varieties that require additional space. Tarps provide a cost-effective and flexible solution for expanding and adapting greenhouse areas.
After considering the benefits, considerations, and recommendations surrounding the use of tarps under greenhouses, it is ultimately up to you to make an informed decision based on your specific needs, goals, and preferences. Tarps offer numerous advantages, including weed prevention, improved drainage, temperature stability, and protection against pests. With a wide variety of tarp materials available, such as heavy-duty polyethylene, UV-resistant PVC, clear polyethylene, and insulated options, there is a suitable tarp for every greenhouse setup.
Installation methods, such as laying the tarp directly on the ground, creating raised beds, or attaching the tarp to the greenhouse structure, offer flexibility and customization. Regular maintenance and care, including inspecting for tears or damage, cleaning and sanitizing the tarp, and managing weed growth and water drainage, are essential to ensure the longevity and effectiveness of the tarp.
Experts’ opinions, real-world examples, and comparisons to alternative ground cover options provide valuable insights and guidance. By considering factors such as greenhouse type, local climate conditions, purpose of the greenhouse, cost implications, and potential impact on groundwater, you can make a well-informed decision that aligns with your specific needs and goals.
Whether you are a commercial greenhouse operator, community gardener, hobbyist, or educational institution, the use of tarps under a greenhouse offers benefits that can enhance your growing experience and yield better results. By taking into account the comprehensive information presented in this article, you can confidently explore the possibilities and make an informed decision that suits your unique greenhouse setup. Happy gardening!