The Q&A Archives: Dividing Hostas

Question: Is there a better time of year to divide hostas? Ours are 3 years old. The patch they are in will be dug up before the end of the summer to insert a patio. Should we replant then in another spot and divide them later or can we divide them any time this summer and replant? Are there any keys to success?

Answer: Spring is the better time to dig and divide hostas. If you wait until the weather gets hot, they'll have trouble adjusting. Clumps of hosta aren't too difficult to divide, but the roots tend to tangle so it's easiest just to cut through the root mass, taking a few leaves with roots attached, and planting them in their new garden spots. Amend the soil first, and add a peatmoss mulch around the plants after transplanting. Water them well once they're in the ground, but don't fertilize until new leaves begin to unfurl.

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