shrub

Spanish Dagger

Yucca treculeana

Essentials

At a Glance

Plant Type

Shrub

Height

180 inches

Width

96 inches

Light

Full Sun

Zones

8, 9

Water

Low

Humidity

Low

Lifespan

Decades

Native To

North America

Toxicity

Parts may be toxic if ingested; leaves are sharp.

The Story

Plant Bio

Yucca treculeana is a large, tree-like yucca with a thick trunk, often branching, topped by rosettes of stiff, sharp-pointed, blue-green to yellow-green leaves. It produces a tall panicle of creamy-white, bell-shaped flowers. This species is notable for its robust, spineless leaves and its impressive, towering flower spikes that attract pollinators and add striking vertical interest.

Bloom Period:

EarlyLate

Uses & Benefits:

Its striking, architectural form adds visual interest year-round.

Drought-tolerant and low-maintenance, ideal for water-wise gardens.

Provides habitat for native pollinators and beneficial insects.

Planting

How to Grow

Select a sunny, well-drained location for planting.
Tuck young plants into soil with minimal disturbance.
Water sparingly after planting, allowing soil to dry between watering.
Mist cuttings if propagating from offsets, keep humid for 2 weeks.
Apply a layer of gravel mulch to improve drainage and reduce weeds.
Monitor for pests and prune dead or damaged leaves as needed.

Pro Tip

Ensure excellent drainage to prevent root rot; avoid overwatering.

Keep It Thriving

Care Guide

Do

Water sparingly during dry periods 🌱
Prune dead leaves to maintain shape ✂️
Apply mulch to conserve moisture

Don't

Overwater, which can cause root rot ❌
Plant in poorly drained soil ❌
Expose to excessive shade ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Sculptural focal pointDrought-tolerant borderArchitectural accent in xeriscape

Companion Plants

Agave Sedum Lantana Yucca filamentosa Prickly pear cactus

Multiply

Propagation Methods

Good to Know

Common Questions

Spanish Dagger questions

What zones can Spanish Dagger grow in?

Spanish Dagger is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Spanish Dagger deer resistant?

Yes — Spanish Dagger is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Spanish Dagger bloom?

Spanish Dagger typically blooms in late summer through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Spanish Dagger need full sun?

Spanish Dagger does best in full sun (6+ hours).

Is Spanish Dagger drought tolerant?

Yes — once established (usually after the first full season), Spanish Dagger handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.