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Propagating Ornamental Grasses by Division: A Step-by-Step Guide

Why Division Is Best

Ornamental grasses are pricey at nurseries. Growing from seed is slow and labor-intensive. Division is easiest and most effective—you need just one parent plant per variety.

When and How to Divide

Timing: Early spring, just before new growth emerges. If bought in spring, divide immediately; otherwise, plant temporarily and divide next spring.
Method: Dig up the root mass and divide into pieces. Small divisions with some roots will grow. Young plants can be torn apart by hand; large, dense clumps need tools—spade, or even hammer and chisel for very tough roots.

Pro Tip from a Wholesale Grower

Don't let grasses get huge if you plan to divide. Growers plant small divisions in spring, dig and divide them the next spring—they tear apart easily by hand at 12 months. This saves immense effort compared to dividing mature, dense clumps.

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