Planted First Rhododendron This Late Spring

Question

I don’t think my soil is acidic enough after reading more on how to care for it. Can I safely add the sulfur to the soil now (late August)?

Thank you
joni

Answer 1

Yes, it should be fine to do now. But I would recommend having your soil tested first to determine how acidic it is first. This article will explain more about soil testing:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm