Zone 8b hibiscus
I live in zone 8b south Ga and I have both so called hardy hibiscus and tropical hibiscus in the ground. Each year they both die back, just before the die back I prune the tropicals to the ground and cover with mulch. Both come back each year. Here is my question, my tropical hibiscus come back healthier and pretty much bug resistant whereas the so called hardy hibiscus come back very leggy and plagued with bugs all year, why do my tropicals do better in zone 8b than my hardy ones? I am on the verge of getting rid of my hardy hibiscus and just go with tropicals that the box stores sale as annuals for 30 or so dollars a flat. Has anyone else run into this situation? I am not complaining, mind you, I prefer the tropical hibiscus, I am just mildly suprised at this situation.