Species · genus Yucca · Asparagaceae

Twisted-leaf Spanish-dagger

Yucca rupicola Scheele

Also known as: Twist-leaf Yucca · Twisted-leaf Yucca · Texas Yucca

Growth habit

perennial

Native range

Mexico Northeast, Texas

Reference · Y. rupicola

Cultivars of Y. rupicola

The named forms growers keep — each with its own page, each honest about how much we know.

No named cultivars catalogued under Y. rupicola yet. When growers document a stable, named form, it earns its own page here.

Guide

The species-level account. Cultivar pages build on this and say where they differ.

Yucca rupicola is a rosette-forming perennial native to the rocky limestone country of Texas and northeastern Mexico, so it is adapted to bright sun, sharp drainage, and long dry spells. Give it the brightest, sunniest spot you have and a gritty, fast-draining mix. Water deeply but infrequently, letting the soil dry out almost completely before watering again — water only when the mix is dry well below the surface.

Care recipe

The species record — the baseline every cultivar inherits unless it says otherwise.

Care notes are early — not yet verified

Light: ai:claude-opus-4-8
Water: ai:claude-opus-4-8 (range 14-28d)
Humidity: ai:claude-opus-4-8
Soil: ai:claude-fable-5
Care: ai:claude-fable-5

Light

Direct sun

Water

≈ every 28 days

Humidity

Low — average room

Temperature

6–32 °C

Soil mix

Sandy, sharply draining rocky mix

Propagation

Offsets or seed

Fertilizing

Minimal — a light spring feed at most

Growth rate

Slow

Flowering

Rarely flowers indoors

ToxicityAuthoritative · species

Toxic to cats & dogs

Saponins — vomiting, drooling. This is where toxicity lives: every cultivar of this species inherits it and none can override it.

Reference images

Every image credited. Licenses link to their deeds.

No reference gallery yet

A few clear photos — habit, a mature leaf, a flower if it blooms — would give this page its eyes.

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Sources: ai:claude-opus-4-8 · ai:claude-opus-4-8 (range 14-28d) · ai:claude-fable-5 · ASPCA

Kept true by its growers

Every fact here carries its source. Grow Twisted-leaf Spanish-dagger yourself? What you’ve observed — how it drinks, how it holds its color, a name that’s off — is exactly what keeps this page honest. Contributions are reviewed before anything changes.