Spanish Dagger
Yucca aloifolia
Last reviewed: August 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 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) 426-4435and your veterinarian's emergency line.
Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.
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
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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.
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: mid zone, 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.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Pollinator Patch flags toxic plants like Spanish Dagger and shows pet-safe natives for your ecoregion instead.
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