Using greenhouse shade cloth is a game-changer for achieving optimal plant growth. In this article, I’ll take you on a journey through the background, benefits, average cost, installation, and other essential considerations of using greenhouse shade cloth. Whether you are a seasoned gardener or a beginner, this guide will provide helpful suggestions to enhance your greenhouse experience.

Understanding Greenhouse Shade Cloth

Before we dive into the benefits and practical aspects, let’s grasp the concept of greenhouse shade cloth. In simple terms, it is a specially designed fabric that provides shade and regulates sunlight exposure for plants inside the greenhouse. This versatile material allows you to control the amount of sunlight your plants receive, ensuring they flourish in the ideal conditions. Most of the material is also durable, lasting anywhere from 8 – 12 years.

Types of Greenhouse Shade Cloth

There are various types of shade cloths available, each serving different purposes. Some common options include:

White or Light-Diffusing Shade Cloth: This type scatters sunlight, reducing its intensity and promoting even distribution throughout the greenhouse. It is good to use for flowering plants.

Aluminet (Aluminized) Shade Cloth: Does a great job of reflecting excessive heat and harmful UV rays, keeping the greenhouse cooler during scorching summers. It has a modern, shiny appearance that diffuses light underneath. 

Black Shade Cloth: Designed to block out sunlight entirely, useful for light-sensitive plants or certain growth stages. For example, it can be used to encourage plants to grow taller by directing them to reach to a specific light source. Black shade cloth also comes in looser weaves to allow for more light penetration.

Colored Shade Cloth: You may have noticed colored shade cloth at nurseries or used as a windscreen. It’s also used at baseball fields and tennis courts.

Woven and Knitted Shade Cloth: Differ in structure and durability, catering to specific plant needs. Knitted shade cloth is less likely to come unraveled, but both types are sturdy and durable. 

Grower’s Solution is a good resource for shade cloth, polycarbonate panels, and plastic sheeting.

The Benefits of Using Greenhouse Shade Cloth

I can’t emphasize enough the advantages of incorporating shade cloth into your greenhouse setup. Let’s explore why it’s a must-have for any serious gardener:

Temperature Regulation

One of the most significant benefits of shade cloth is its ability to regulate temperature inside the greenhouse. By reducing direct sunlight exposure, it prevents overheating on scorching days, creating a more favorable environment for your plants. You still may need other ways to control temperature, but shade cloth plays an important role.

Sunlight Management

Different plant species have different light requirements. Shade cloth allows you to fine-tune the amount of sunlight your plants receive, ensuring they get the optimal light for their growth and development.

Protection from UV Rays

Prolonged exposure to harmful UV rays can damage plants and inhibit growth. Aluminized or UV-resistant shade cloths provide a protective barrier, shielding your plants from these harmful rays.

Pest and Insect Control

Beyond temperature and light regulation, shade cloth acts as a physical barrier, keeping pests and insects at bay. It’s an eco-friendly way to protect your plants without relying on chemical solutions.

Reduced Water Consumption

By moderating the temperature and minimizing evaporation, greenhouse shade cloth helps conserve water. It ensures that your plants stay hydrated and healthy, even during dry spells.

Average Cost and Considerations

Although the cost of greenhouse shade cloth varies based on several factors, prices can start at under 50 cents per square foot. Here are the factors that can affect price:

Material and Quality

Although high-quality materials may cost more upfront, they offer better durability and performance. Consider investing in premium shade cloth for long-term benefits.

Type of Shade Cloth

Different types of shade cloths come at different price points. Choose one that aligns with your plant’s needs and your budget.

 Brand and Supplier

Even though reputable brands and suppliers might charge more, they often provide better customer support and after-sales service. It can pay to do some research and shop around for the best value.

Installing Greenhouse Shade Cloth: Step-by-Step Instructions

Installing greenhouse shade cloth is a straightforward process that, with the right approach, can be accomplished efficiently. Follow these step-by-step instructions to ensure a seamless and effective installation:

Step 1: Determine How Much You Need

Most growers get enough shade cloth to cover the roof and about 2/3 of the sides of the greenhouse.

Step 2: Gather Your Tools and Materials

Before you begin, ensure you have all the necessary tools and materials ready. You will need the shade cloth (pre-cut to fit your greenhouse dimensions), zip ties or clips, a ladder, measuring tape, scissors or a utility knife, and a helper if possible.

Step 3: Clean the Greenhouse

Ensure your greenhouse is clean and free from any debris that might interfere with the installation. Sweep the floors and wipe down the walls and roof if necessary.

Step 4: Measure and Cut

Unroll the shade cloth and lay it out inside the greenhouse. Align it to cover the roof, walls, or specific areas you want to shade. Use a measuring tape to ensure the cloth fits precisely, leaving a few inches of overlap on all sides. Carefully cut the cloth to the required size using scissors or a utility knife.

Step 5: Attach the Shade Cloth

Start by securing one corner of the shade cloth to the greenhouse frame using zip ties or clips. As you move along, ensure the cloth remains taut and wrinkle-free. Work your way around the frame, attaching the cloth securely to each side.

Step 6: Create Tension

To prevent sagging, create tension in the shade cloth. Pull it gently in all directions and fasten it tightly to the frame. Be cautious not to pull too hard, as it may damage the cloth or the greenhouse structure.

Step 7: Overlap Seams

If you need to use multiple pieces of shade cloth to cover your entire greenhouse, overlap the seams by at least a few inches. This will ensure there are no gaps and provide a more continuous shade.

Step 8: Secure the Bottom

Once the top and sides are secured, fasten the bottom of the shade cloth to the base of the greenhouse frame. This will prevent the cloth from flapping in the wind and keep it securely in place.

Step 9: Check for Gaps

After installation, inspect the greenhouse for any gaps or areas where sunlight might still penetrate. If you find any, use additional pieces of shade cloth or attach shade cloth patches to cover those spots.

Step 10: Test the Shading

Before completing the installation, spend some time observing the shading effects inside the greenhouse. Make sure it aligns with your desired level of sunlight reduction.

Step 11: Trim Excess

Trim any excess shade cloth hanging from the edges, ensuring a neat and tidy appearance.

By following these step-by-step instructions, you can successfully install greenhouse shade cloth and enjoy the numerous benefits it provides to your plants’ growth and overall greenhouse environment. Remember that proper installation is key to maximizing the effectiveness of the shade cloth, so take your time and seek assistance if needed.

Installation Tips

Measure Precisely

Whether you are measuring to order a custom shade cloth or to cut your own to size, accurate measurements are crucial. The old saying of “measure twice, cut once” definitely applies here.

Secure Properly

Ensure the shade cloth is securely fastened to the greenhouse frame to withstand strong winds and adverse weather conditions. Since there are different ways of attaching shade cloth, check the manufacturer’s recommendations to find the best method for your type of greenhouse.  

Consider Retractable Options

For more flexibility, you can opt for retractable shade cloth systems that allow you to adjust the shade levels as needed.

Shade Cloth Maintenance and Cleaning

Taking care of your shade cloth will extend its lifespan and ensure its continued effectiveness:

Regular Cleaning

Gently clean the shade cloth with mild soap and water to remove dirt and debris, which might obstruct sunlight.

Seasonal Storage

During the off season, consider storing the shade cloth properly to protect it from wear and tear.

Conclusion

In conclusion,  shade cloth is a valuable tool for any greenhouse gardener. Its ability to regulate temperature, manage sunlight exposure, and protect plants from UV rays and pests makes it a must-have accessory. Consider your specific plant needs, budget, and the type of shade cloth suitable for your greenhouse to make the most of this beneficial addition.

FAQs About Greenhouse Shade Cloth

Should I put shade cloth on the outside or inside  of  my greenhouse?

It depends on what you are growing, but if a major goal is to prevent overheating, it’s best to install the shade cloth on the outside of the greenhouse.

Is shade cloth necessary for all types of plants?

 Shade cloth is not essential for all plants. It is most beneficial for light-sensitive plants or in regions with scorching summers.

Can I use shade cloth outdoors?

Yes, it can be used in outdoor gardens to provide shade for delicate plants or as a privacy screen.

How often should I clean my shade cloth?

Cleaning your shade cloth twice a year, before and after the growing season, is generally sufficient to maintain its effectiveness.

Can I install the shade cloth myself, or should I seek professional help?

With proper instructions and tools, installing shade cloth can be a DIY project. However, if you’re unsure, seeking professional assistance is always a good idea.

Will using shade cloth negatively affect my plant’s growth?

No, using shade cloth appropriately will enhance your plant’s growth by providing optimal conditions and protecting them from excessive heat and UV rays.