Answer: I am not certain which type of hibiscus you are growing, if it is the hardy shrub Rose of Sharon type (Hibiscus syriacus) or if it is one of the herbaceous perennials such as "Lord Baltimore" but these plants both start to grow fairly late in the season so it may be weather related with the one in the warmest spot starting first. Wetter soil can also keep the soil colder longer into the spring so the drainage pattern could also affect when they start. The shrub hibiscus is particularly sensitive to excess wetness during the winter, so this might have caused some problems for them this year, either with the rainstorms or if there were any changes to the drainage patterns in your yard. If none of these seem possible, I would suggest you consult with your local county extension and see if they are aware of anything unusual in your area that would have affected them. Good luck with your hibiscus!
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