Scientific Name:
Yucca filamentosa
(incl. hybrid cvs.)
Pronunciation:
YUCK-uh fill-uh-men-TOE-zuh
Common Name:
yucca, Adam's needle, palm lily
Family Name:
Asparagaceae
Plant Type:
Broadleaf evergreen
Key ID Features:
Evergreen, grass-like clumping habit; leaves thick, linear-lanceolate (sword-like), most 45-70cm long x 2.5-5cm wide, apex gradually tapering and spine pointed, marginal treads; panicle of large florets 5-7cm wide, each with 6 tepals, white to slightly yellowish.
Habit:
Stiffly upright
Form:
Round
Texture:
Medium - coarse
Mature Height:
0.4 - 0.7m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Slow
Origin:
Garden origin
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun
Soil/Growing Medium:
Rocky or gravelly or dry, Well-drained
Water Use:
Low, Summer dry
Landscape Uses:
Attract butterflies, Container planting, Group or mass planting, Rock garden, Specimen plant
Additional Info:
Google. Common variegated cultivars include Y. 'Golden Sword' (shown), Y. 'Bright Edge', and Y. 'Color Guard'. Compare to Y. gloriosa.
Leaf Morphology:
Form:
Simple
Arrangement:
Basal
Texture/Venation:
Leathery, Parallel venation
Surfaces:
Glabrous
Colour in Summer:
Green, Yellow, Yucca 'Golden Sword' is variegated
Colour in Fall:
Green, Yellow
Shapes:
Lanceolate, Linear
Apices:
Acuminate, Acute, Aristate
Bases:
Attenuate
Margins:
Entire
Additional Info:
Leaves variegated, Margins with curly white treads
Inflorescence Type:
Panicle, Floriferous
Flower Morphology:
Flowers perfect
Number Of Petals:
3
Corolla Shape:
Campanulate
Ovary Position:
Superior
Colour (petals):
Showy, White (May appear creamy or slightly yellow)
Flower Scent:
Fragrant
Flower Time at Peak:
Jun, Jul, Aug
Additional Info:
Six tepals
Fruit Type:
Capsule, Aborted (hybrids) or absent
Fruit Colour:
Brown
Fruiting Time:
Aug, Sep
Additional Info:
Fruit insignificant, Rarely form locally
Bark or Stem Colour:
Green, Red
Additional Info:
No above ground stem - flower scape only (peduncle)
Maintenance:
Low
Pest Susceptibility:
Aphids or adelgids, Fungal leaf spot, Scale insects (Pest resistant, Disease resistant, Deer resistant, Rabbit resistant, Drought tolerant)
Course(s):
- HORT 1155
- Level 2 Apprenticeship
Location(s):
- (AGB) Acer Griseum Bed : q.2 - cv. Golden Sword
- (BCE) Boulevard (Circular) Eastend
- (GAZ) GAZebo
- (GAZW) GAZebo West : cv. Golden Sword
- (MCC) Main Campus Courtyard