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Spanish Dagger

Yucca aloifolia

Last reviewed: October 2026

Yucca aloifolia is a rigid, sword-leaved succulent shrub that blooms from May through July with tall spikes of white to cream flowers. It tolerates sandy, coastal soils and needs full sun with low water once established.

Spanish Dagger (Yucca aloifolia)
Photo: (c) Bobby McCabe, some rights reserved (CC BY)

Spanish Dagger is toxic to dogs and cats.

Listed as toxic by the ASPCA (opens in new tab) (last reviewed 2026-07-17). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435 and your veterinarian's emergency line.

Pollinator Patch flags toxic plants so you can choose a native alternative that is not on the ASPCA toxic plant list.

Native swaps for a yard with pets

Spanish Dagger is listed as toxic to dogs by the ASPCA. These natives fill a similar role in a planting and are not on the ASPCA toxic plant list for dogs or cats. Each plant's page carries its dated record.

Light

full sun

Water

low

Size

72"–144" H × 36"–72" W

Bloom

May, Jun, Jul

Native to

AL, FL, GA, LA and 5 more states

Pollinators

moths, bees

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 459 programs across 44 states, each with a link to the provider and the date we last checked it.

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Spanish Dagger is an evergreen succulent shrub with a stout trunk and rosettes of stiff, sharply pointed leaves, topped in summer by tall spikes of creamy white bell-shaped flowers. Its rigid, needle-tipped foliage is a real safety consideration near paths or play areas, so siting away from foot traffic is best. Native to the Texas Gulf Coast per the Lady Bird Johnson Wildflower Center.

Growing Spanish Dagger

Grow Spanish Dagger in full sun and low water. Mature plants reach 72 to 144 inches tall and spread 36 to 72 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

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In an HOA neighborhood

Spanish Dagger is an HOA-friendly choice in the right placement. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: backyard only.

  • Leaf tips are extremely sharp and rigid, a puncture hazard near walkways, play areas, or property lines.
  • Not recommended close to windows, doors, or other high-traffic edges.

Wildlife value

Host plant for Yucca moth (Tegeticula spp.).

Its flowers depend on a specialized pollination partnership with yucca moths, whose larvae develop inside the seed pods, per the Lady Bird Johnson Wildflower Center.

Common questions

When does Yucca aloifolia bloom?
Yucca aloifolia typically flowers from May through July, producing a tall central spike of white to cream, bell-shaped blossoms above the sharp evergreen leaves.
What pollinates Yucca aloifolia?
Yucca moths are the primary pollinators, in a well-documented mutualism where the moth lays eggs in the flower while pollinating it. Bees also visit the flowers for nectar.
How much water does Yucca aloifolia need?
It is a low water, drought tolerant succulent that prefers dry to moderately moist, well-drained soil and does not do well in constantly wet conditions.
What light conditions does Yucca aloifolia prefer?
Full sun brings out the best growth and flowering, though it will also grow acceptably in part sun with slightly reduced bloom.
Does Yucca aloifolia lose its leaves in winter?
No, it is evergreen and keeps its stiff, pointed leaves year round, though older lower leaves may brown and persist along the stem.
Is Spanish Dagger toxic to dogs?
Yes. Spanish Dagger is listed as toxic to dogs by the ASPCA (aspca.org). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
Is Spanish Dagger toxic to cats?
Yes. Spanish Dagger is listed as toxic to cats by the ASPCA (aspca.org). If your cat has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
Is Spanish Dagger HOA-friendly?
Spanish Dagger is generally an HOA-friendly choice in the right placement, with low maintenance.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

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