Moundlily Yucca

Yucca gloriosa

Native to:
Puerto Rico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asparagaceae
Genus:
Yucca
Species:
Yucca gloriosa
USDA Symbol:
YUGL2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Shrub , Tree
Height:
300 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
jul,aug,sep
Bloom Colors:
white
Evergreen Shrub:
Yes
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Prodoxus quinquepunctella, ⚠️Cofaqui giant-skipper (Megathymus cofaqui)

Garden & Ecology Notes

Wildlife Value:
birds, butterflies
Deer Resistant:
Yes
Salt Tolerant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Yucca gloriosa resprouts from underground rhizomes after fire; fire may stimulate flowering.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
Thrives in coastal dunes and sandy soils.

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 30–60 days
Germination Time:
30–90 days
Notes:
Seeds benefit from warm stratification followed by cold stratification; germination can be slow and erratic.