I am sorry for this delayed reply to your gardening question. The spring rush has brought a deluge of questions and we are working hard to catch up!
If they get a little break from the afternoon sun they should last for a while longer than that. I have taken the supertunias into August in the hot southern sun by keeping the soil moist but not too soggy wet. Morning sun is much better than hot afternoon sun and your plants will keep going longer. Fertilize them with Miracle Gro or a similar soluble fertilizer every few weeks to keep them vigorous.
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
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