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soaptree yucca

Yucca elata · Agavaceae

soaptree yucca (Yucca elata)
Photo: (c) CK2AZ, some rights reserved (CC BY) · CC BY · via iNaturalist

soaptree yucca (Yucca elata) is a perennial tree in the Agavaceae family. It is native to North America. USDA records it as hardy in zone 5 and warmer, down to about -13°F.

At a glance

Typetree Derived
Lifecycleperennial USDA
Native statusnative USDA
Mature height20 ft USDA
Lightfull-sun USDA
Water needlow USDA
Growth ratemoderate USDA
Soil pH7–8.5 USDA
BloomMay–June USDA
Flower colorWhite USDA
Hardiness zones5 and warmer USDA
Guild layerunderstory Derived
Nursery availabilityField Collections Only USDA

USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.

Growing conditions

It needs full sun. USDA rates it as having low water needs once established. Its drought tolerance is rated high. It will not tolerate waterlogged soil — USDA rates its anaerobic tolerance as none. It is recorded on soils from pH 7 to 8.5 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 5.

Size and growth

At maturity it reaches about 20 ft, making it a small tree or large shrub. It grows at a moderate rate.

Bloom period

USDA records a bloom period of May through June. Flowers are white.

A flowering date, not a pollinator rating.

Foliage, flower and season

Summer foliage is green, coarse in texture. Its flowers are conspicuous. It carries conspicuous autumn colour. Its fruit or seed heads are conspicuous, extending interest past flowering. Its active growth period is spring and summer. USDA rates its lifespan as short, so plan on replacing or resowing it rather than treating it as permanent structure.

What the site needs to provide

USDA records it across sites receiving 10 to 15 inches of annual precipitation. The low end of that band is genuinely arid, so it has a wide tolerance for dry country. It needs at least 150 frost-free days to finish its season. It roots to at least 6 inches. Fertility requirement: low — no feeding needed on ordinary garden soil.

Propagating it

Propagate it from seed, bare root and container stock. USDA records no cold-stratification requirement, so seed should germinate without a chilling period. Its seed spreads at a moderate rate. It spreads vegetatively at a slow rate.

Resilience and wildlife

Browsing animals rate it barely palatable — the sourced basis for calling it deer-resistant. Its fire tolerance is rated none. Its growth form is recorded as stoloniferous.

Role in a guild

Understory. In a layered planting this is the layer beneath the canopy, tall enough to hold structure but shaded from above. The layer is derived by a fixed rule from growth habit and mature height.

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Tags

evergreendrought-tolerantsalt-tolerantsandy-soildeer-resistantnativefull-sun

Related plants

Others in Yucca

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol YUEL, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.

Read our full data sources and methodology.

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