Perennial care: Plant must be divided to increase vigour

By Les Hodge
May 15 2021 - 9:00am
Delphiniums. Pictures: Shutterstock
Delphiniums. Pictures: Shutterstock

The typical perennial increases in size each year, usually around the outside of the previous year's growth and may become weakened by this overcrowding so division of the plant is necessary to create new plants and to increase overall vigour.

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