Be the first on the block with ripe tomatoes! This teepee structure acts as a growth accelerator from the red tint enhancing the plants photosynthesis for better growth. The double-walled plastic is sealed at regular intervals to form 18 tubes. Simply fill the tubes with water and place them over tomato plants, cucumbers, peppers and other heat loving plants. The water acts like insulation, storing heat during the day and releasing it slowly at night, making plants grow faster and fruit earlier than other conventional methods and your plants will be protected through the worst spring weather. 18" tall.