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Bulbs 101: Spring flowering bulbs

Publié dans Bulbs

National Gardening Association Editors

When an established perennial produces fewer flowers, or the center of the plant looks sickly while the margins thrive, it could be time to divide the plant. Or even if the plant is healthy, perhaps you’d like to share it with a friend by splitting off a piece. For one reason or another, most gardeners will need to divide their perennials at some point.

The best time to divide plants depends on your region. In cold regions, early spring is usually the best time. The new divisions will have a more time to become established before the challenges of the long, cold winter. On the other hand, in climates with mild winters and hot summers, high temperatures pose a harsh threat, so fall may be a better time to divide, giving plants the mild winter to get established. Here are some guidelines for dividing perennials.

Prepare the Plant

Choose a cool, cloudy day to divide and replant. If the ground is dry, begin by thoroughly soaking the soil around the plant. Let it drain while you gather your tools: shovel, garden fork, pruners, and sharp knife. Then trim back the leaves or stems to 6 to 8 inches to make handling easier.

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Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.

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Helpful Tips

Some plants don’t need dividing and resent having their roots disturbed. These include monkshood (Aconitum), false indigo (Baptisia), bleeding heart (Dicentra), lupine (Lupinus), peony (Paeonia), and poppy (Papaver). If possible, divide perennials just before a rainy spell is predicted. Cool temperatures and gentle moisture will help the plants recover from the stress of dividing and replanting.

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