Most people take the plants indoors as winter approaches. Temperatures below 32F (0C) will damage the plants. Some folks hook lines of light bulbs to keep the dragon fruit plants warm.
Temperatures below 100F (37.8C) would be best & will not burn your plants. They will thrive at around 65-85F (18-29C). Seedlings can handle the lowest temp of 40F (4C).
During this time, if you use the light bulbs, water lightly only when the soil is dry. Otherwise, just leave them there & avoid overwatering.
|Efficient T5 Grow lights|
|3"H x 26"W x 46"L|
|6400K T5 Tubes|
|From $12-25/month electricity|
This one is also good:
|Balanced spectrum grow light bulb|
|9W Full spectrum|
|Low heat - doesn't burn plants|
Planting the vines against a wall can help cope with the cold winter breeze & cold temperatures. With some good air roots, the plants can survive even if their ground roots are frozen or damaged by the cold.
Likewise, if you have them in containers, place the containers near the wall inside the house. So the heat trapped by the wall can be reflected & keep your trees warmer.
Also, consider choosing the species that are quite heat & cold tolerant for the best chances of survival. Some good ones are:
- Vietnam White
- Taiwan varieties
American Beauty is quite sensitive to heat & cold. If you like this variety, try grafting them on a strong rootstock that can withstand the changes in temperatures. They will nourish your plants well while keeping them safe some pests, diseases or shocks. The results are very promising.
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