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How to Take Root Cuttings

Given the right conditions, plants can be rooted from stem cuttings in spring or summer, or in late winter from pieces of root.

Excerpted from How to Grow Practically Everything
Phlox Paniculata Suitable to Root PropagationDK - How To Grow Practically Everything © 2010 Dorling Kindersley Limited

With the exception of variegated plants, which produce only green shoots from root cuttings, many perennials can be propagated using this method. Never take more than a few roots from each plant, and quickly replace the plants in the soil. Thin roots, such as those of garden phlox, should be laid horizontally on the soil to root.

Suitable Plants


Anemone
Bear’s breeches
Bellflower (Campanula)
Flowering kale (Crambe)
Bleeding heart
Globe thistle
Plume poppy
Oriental poppy
Sea holly (Eryngium)
Tree poppy (Romneya)
Verbascum

Trim Off Healthy Roots

In winter or early spring, lift the plant, scraping away soil from larger plants to expose the roots. Cutting close to the stems (crown), remove three or four fat, healthy roots, avoiding brittle, damaged or woody pieces. Seal in a plastic bag.

Trim Off Healthy Roots for PropagationDK - How To Grow Practically Everything © 2010 Dorling Kindersley Limited

Cut Top and Bottom

Cut each root into 2- to 3-in. segments with a sharp knife. Trim the top end (nearest the crown) straight across and the bottom at an angle, to make sure you plant them right end up. You don't need to do this with thin roots.

Trim Root End at Angle Before PlantingDK - How To Grow Practically Everything © 2010 Dorling Kindersley Limited

Plant Up

Insert the root cuttings vertically in pots of soil (with the blunt end at the top), spacing them 2 inches apart. Lay thinner roots on the surface, covering them with 1/2 inch of coarse sand or grit. Water the roots with a diluted fungicide and move pots to a sheltered spot outside.

Plant Root Cutting With Blunt End UpDK - How To Grow Practically Everything © 2010 Dorling Kindersley Limited

Aftercare

Cover pots and trays with a plastic tent, or place them in a cold frame, and keep the soil damp. When weather warms, be sure that the cold frame or plastic tent doesn't get too hot. The cuttings should be well rooted in about six months. They may produce shoots beforehand but wait until roots appear at the holes at the bottom of the pots before transplanting.

Root Cuttings Ready to Plant in Six MonthsDK - How To Grow Practically Everything © 2010 Dorling Kindersley Limited

Excerpted from How to Grow Practically Everything

© Dorling Kindersley Limited 2010

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