Did I kill my Mandevillas? - Knowledgebase Question

citrus heights, ca
Avatar for becky_pepper
Question by becky_pepper
March 31, 2005
I live in the sacramento area, I believe zone 9. I purchased 4 mandevillas from you last year and they were beautiful. I planted them in the ground and trellised them behind a spa. I was under the assumption that the roots could withstand tempurature to 5 degrees, and we don't even come close. I pruned them to about 12 inches above the soil. I figured by now I should have seen some new growth since everything else is growing. Did I kill them or is it to soon to tell, or is there anything I can do. Thank you so much, because those where my favorite plants. Becky

Answer from NGA
March 31, 2005
Mandevilla are frost tender tropicals and will suffer at temperatures below 50F. For best results they should be planted in pots rather than in the ground and the pots brought indoors by mid-October before the nighttime temperatures dip below 50. Place them in the brightest south or east-facing window in your house and take them back outdoors in the spring. Only time will tell whether or not your plants will come back. Cut the tops down to ground level and let's hope the roots survived their winter outdoors.

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