The Q&A Archives: Johnson's Blue Growing Season

Question: Will Johnson's Blue last into September in middle South Carolina?

Answer: I think you are asking about the perennial geranium, "Johnson's Blue". Basically, the answer to your question is, "It depends". This plant will put out a big flush of bloom in the spring, and then will bloom off and on throughout the season if it is provided with ample water and fertility and if it is trimmed back after each bloom flush. The later flushes are lighter than the first, and may be infrequent or even stop when the weather is hot.

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