Soapweed yucca

Discuss this plant with the guide — choose this profile as a possible match and prepare your observations for Colorado Plants & Practical Care.

Yucca glauca

Great Plains native. S09

Sharp leaves · Toxic to pets. Native status, garden use and noxious-weed class are separate from toxicity. Exposure help.

Still researching this plant

This is a sourced working profile. The cited findings are available below. Independent botanical and veterinary review is pending. Uncertainty is not a finding that the plant is safe.

Three views of this plant

Photos are source-identified examples, not a complete identification key. Check leaves, stems, flowers and fruit together. Locations are not assumed to be in Colorado.

**flower** — Vertical stalk with pendulous cream-colored bell-shaped flowers and unopened buds.
Alvesgaspar · CC BY-SA 3.0
Photo source and identification
Original record · Original image
Source-supported identification with visual consistency check Photo selection verifies source labeling and visible consistency; it is not an independent specimen determination.
Downloaded source thumbnail; no further pixel edits. Gallery display preserves the full image; the catalog preview uses a CSS crop.

**habit and fruit** — Broad clump of narrow, stiff leaves with upright stems carrying green capsules.
DouglasGoldman · CC BY-SA 4.0
Photo source and identification
Original record · Original image
Source-supported identification with visual consistency check Photo selection verifies source labeling and visible consistency; it is not an independent specimen determination.
Downloaded source thumbnail; no further pixel edits. Gallery display preserves the full image; the catalog preview uses a CSS crop.

**bud** — Close view of several elongated reddish-green flower buds on a yucca inflorescence.
Cephas · CC BY-SA 4.0
Photo source and identification
Original record · Original image
Source-supported identification with visual consistency check Photo selection verifies source labeling and visible consistency; it is not an independent specimen determination.
Downloaded source thumbnail; no further pixel edits. Gallery display preserves the full image; the catalog preview uses a CSS crop.

Recognize

A rosette of narrow, pointed leaves with upright stalks of pale, downward-facing flowers. Suited to dry, rocky soil. S09

Plants & habitat

Can expand through offsets and rhizomes. Garden judgment: allow room for the colony and sharp foliage. S09

People

Needle-sharp leaf tips are a physical hazard. Human ingestion safety is not assessed here. S09

Evidence scope: Species-specific physical feature; risk inference.

Dogs & cats

ASPCA lists Yucca species as toxic; vomiting is a reported sign. The evidence is for the genus, not an individual cultivar. S10

Evidence scope: Genus-level.

Other animals

ASPCA reports liver disease and dermatitis in horses exposed to yucca. Yucca glauca also supports yucca moths and wildlife habitat. S10 S09

Evidence scope: Genus-level toxicity; species-specific benefit.

Before taking action

Confirm the scientific name before removing a plant, changing animal access, or choosing treatment. An evidence gap means this review has not resolved the question. It does not mean safe. For listed weeds, consult your county weed program about the requirements for your location; follow the current label for any pesticide. S27

References

S09 — Yucca glauca, NC State Extension · Plant Toolbox. Accessed 2026-09-07T00:23:53+00:00. Locator: Description; needle-sharp leaf points; wildlife relationships.
S10 — Yucca, ASPCA Poison Control. Accessed 2026-09-07T00:23:53+00:00. Locator: Scientific Name; Toxicity; Clinical Signs.

Content revised 2026-09-07 02:43:00Z · Source checks dated separately in the references.