Good drainage and an alkaline soil are imperative. Add lime to acid soils as they like a neutral pH. Plant each individual rhizome at least two feet apart to give them room to grow into large clumps. In the late fall, cut the foliage down to about one inch and clean all around the clump to get ready for next spring's growth. Early in the spring, and again after bloom, feed them with a balanced fertilizer for peak performance. Hold the water in summer as they like to go through a dormant period. Do not expect peak performance until the third year. It is best to leave them alone and let them grow into large clumps. You may divide them after three years if desired. Ants sometimes like their sweet nectar so you may want to use ant stakes at the base if it becomes a problem. Enjoy the cut flowers! |
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