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Past Articles Library | Plant Propagation | Perennials No Dividing



Every 2 or 3 years, either in the fall or spring, many perennials need to be divided and cleaned up. If over time they are not, they will start to decline in health and flowering ability.

At first, this isn't too big a problem, but sometimes after a while you can wish you had planted something that requires a little less maintenance.

If you want, you can still divide plants for propagation or to control size, but our requirements for the purpose of this Quick Tip, are plants that:

  • Don't need to be divided to stay healthy

  • That won't grow too thickly or crowd themselves out

  • That won't develop woody-type stems or roots that don't over winter well

So here are a few perennials that require no division at all to stay healhty and look great, and will give you some extra choices next time you want to plant something new in your yard or garden.

Aconitum - Monkshood - Hardy to zone 3

Adenophora uehatae - Lady Bells - Hardy to zone 5

Aruncus dioicus - Goatsbeard - Hardy to zone 4

Baptisia australis - Flase Indigo - Hardy to zone 3

Crambe cordifolia- Colewort- Hardy to zone 6

Dictamnus albus - Gas plant - Hardy to zone 2

Eryngium amethystinum - Sea Holly - Hardy to zone 6

Gaura lindheimeri - Gaura - Hardy to zone 5

Gypsophila paniculata - Baby's breath - Hardy to zone 3

Helleborus niger - Christmas Rose - Hardy to zone 3

Hibiscus moscheutos - Rose Mallow - Hardy to zone 6

Hosta - Hardy to zone 3

Paeonia - Peony - Hardy to zone 5

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When to Water

If you can, it is always best to water early in the morning. This allows the plant's leaves and flowers to dry off as the day warms up.

If you water at night, the plant stays wet for hours in the cool, which are prime conditions for fungi and other problems to set in.

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