I was given a Mexican petunia plant that is bare root and I plant to plant soon. What can you tell me about it? I have never heard of it before, am told it is very hardy and blooms well. It has 2 purple blooms on it now.
Mexican petunia is Ruellia. It is an extremely heat and drought tolerant perennial. There is a standard variety that grows about three feet tall and has purple flowers and is very hardy. It can also get a little too happy in the garden and spread, so pay attention to it. There is also a dwarf ruellia that gets no taller than 6 inches and is marginally hardy in NW Arkansas. Plant yours in full sun and water and mulch it and it should survive the winter.
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