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Weak-leaf yucca

Yucca flaccida

Also called Spanish bayonet, Adam's needle, Bear Grass, Flaccid Leaf Yucca, Weak Leaved Yucca

Weak-leaf yucca
Photo: William Avery, CC BY-SA 3.0

Weak-leaf yucca is a stemless, evergreen perennial shrub from eastern North America, grown for its sword-like leaves and tall creamy flower spikes. It thrives in full sun and very well-drained, sandy soil.

Family
Asparagaceae (Asparagus family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Water deeply, then let the soil dry out fully between waterings; established plants need little.
Soil
Sandy or gritty, very well-drained soil.
Temperature
Hardy in cold winters (roughly USDA zones 5 to 10); protect potted plants below -5 °C.
How easy
Easy
Safety
Mildly toxic: Sharp leaf tips and raw plant material can cause skin irritation and gastrointestinal upset if eaten.. Toxic to cats and dogs (ASPCA).
Native range
S. Ontario to EC. & E. U.S.A.
Climate
temperate

About

Yucca flaccida, commonly called Adam's needle or weak-leaf yucca, is a species of flowering plant in the asparagus family (Asparagaceae). It is native to south-central and southeastern North America, from the lower Great Plains eastward to the Atlantic seaboard in Virginia, south through Florida and the Gulf states. Its natural habitat is in sandy open woodlands and fields. It is not considered to be threatened by the IUCN.

How to grow it

It is cultivated and valued as an architectural plant. Numerous cultivars are available, some with variegated leaves, of which 'Golden Sword' and 'Ivory' have gained the Royal Horticultural Society's Award of Garden Merit.

Where it grows

A number of yucca moths lay their eggs upon Y. flaccida as a host plant, an example being Tegeticula intermedia.

Other Yucca plants

Aloe yucca · Narrowleaf yucca · Banana yucca · Joshua tree · Adam's needle · Giant yucca · Soapweed yucca · Curve-leaf yucca · Moundlily yucca · Mojave yucca · Schott's yucca · Torrey's yucca

Text excerpted from the Wikipedia article Yucca flaccida by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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