Protect from Sunburn with Shade Cloth

Summer sun is great for our growing garden, but too much will cause damage to leaves and fruit of vegetables. Keep this from happening by installing some shade cloth over plants like peppers, lettuce or tomatoes. Tricia shows us how in the video How to Use Shade Fabric.

Why Does the Sun Cause Damage
All plants need sun to live and grow but too much, or actually too much heat can cause damage. Plant leaves and some fruit have small openings called stomata. These openings allow water loss or transpiration which in turn helps cool the plant. Leaves typically have the most stomata and cool very efficiently. Many fruits have stomata as well but some do not, such as peppers, tomatoes and apples. Thus the excess energy that accumulates during the day can lead to damage like sunburn in the fruit. Strawberries, raspberries, blackberries can also suffer from sun damage. On cane berries, the fruit will show white drupelets, which will eventually dry up. Sweet corn can show damage as well. If the temperature exceeds 95°F when the plants have silks, the silks can be damaged and dry out which will cause “zippering” or poor pollination of kernels on the ear.Shade Cloth Application Guide
30% Shade Fabric - Good for plants that like the heat like tomatoes and peppers. In cooler climates use this also for spinach, lettuce and cole crops in the summer. 47% Shade Fabric - Good for spinach, lettuce, greens and cole crops in hot areas. 50-60% Shade Fabric - Good for shade-loving plants. 80% Shade Fabric - Use over patios, skylights to cool people as well as plants.
Jill, I would think that a 30% shade fabric would be enough. It does like to grow in full sun so you don’t want to give it too much shade. Place it on the side that will shade it from the hottest time of the day.
Hi! I have a big beautiful plumeria, but it has been super hot here in Southern California and it is showing signs of sunburn. Should I use the 47%?
Thanks for your help!
Jill
Iris, you can use a 30% shade fabric to help prevent sun burn or sun scald.
I have planted a dwarf avocado tree & need to protect from Florida . What cloth do I need?