Yucca glauca

RHS Plant Profile

soapweed

Other common names

amole, narrow-leaved Adam's needle, palmilla

Synonyms

Yucca angustifolia

Shrubs

Buy this from Plant Nurseries
4 Suppliers

A shrubby, evergreen perennial to 80cm tall, forming rosettes of narrowly sword-shaped, grey-green leaves. Mature plants may produce 60cm spikes of large, cream-coloured flowers in late summer

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 5–10 years
Max Spread: 0.5-1 metres
Max Height: 1-1.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H5
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asparagaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Tufted
Potentially harmful: Skin allergen. Wear gloves and other protective equipment when handling Pets (dogs, cats): Harmful if eaten - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Yucca can be evergreen perennials, shrubs or trees, with dense or loose rosettes of stiff, sword-shaped leaves and tall panicles of bell-shaped flowers
Name Status: Correct
Plant Range: C North America

How to Grow

Cultivation

Grow in any well-drained soil in full sun. Remove spent flower stems. See yucca cultivation for further advice

Propagation

Propagate by seed sown at 18°C in spring, or remove rooted suckers in spring

Suggested planting locations and garden types

Architectural
City and courtyard gardens
Coastal
Mediterranean climate plants
Patio and container plants
Sub-tropical
Low Maintenance
Flower borders and beds

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free