Scientific Name:
Cycas revoluta
Pronunciation:
SYE-kus re-vo-LOO-tuh
Common Name:
Japanese sago palm
Family Name:
Cycadaceae
Plant Type:
Indoor foliage plant
Key ID Features:
Leaves whorled, palm-like, arching, on indoor plants most reach 50-90cm long, pinnately compound, 40-80 pairs of leaflets, linear, most 4-10cm long x 2-4mm wide, dark green, reduced to spines near the petiole.
Habit:
Arching, Upright
Form:
Vase
Texture:
Medium - coarse
Mature Height:
0.7 - 1.3m
Mature Spread:
1.0 - 1.5m
Growth Rate:
Slow
Origin:
S.E. Asia / Japan / China (S. Japan)
Hardiness Rating:
Zone 9: (-7 to -1 °C)
Exposure:
Full sun, Filtered shade
Soil/Growing Medium:
Well-drained
Water Use:
Low
Landscape Uses:
Indoor plant (Caution: poisonous parts)
Additional Info:
Google. Outdoor plants in warmer climates can grow much larger.
Leaf Morphology:
Form:
Compound
Arrangement:
Whorled
Texture/Venation:
Leathery, Succulent, Parallel venation
Surfaces:
Lustrous
Compound Leaf:
Even-pinnate
Colour in Summer:
Dark-green
Shapes:
Linear
Apices:
Acute
Margins:
Entire
Inflorescence Type:
n/a (male cone), Spike-like
Flower Morphology:
Dioecious plant
Colour (petals):
Brown
Flower Scent:
Sweet
Flower Time at Peak:
May, Jun
Additional Info:
Potted male plants are unlikely to form strobilus
Fruit Type:
Cone (winged seeds)
Fruit Colour:
Red, Brown
Fruiting Time:
Aug, Sep
Additional Info:
Fruit insignificant, Strobilus is unlikely to form on indoor female plants
Bark Morphology:
Shaggy, Single stem trunk
Bark or Stem Colour:
Grey, Brown
Additional Info:
Offsets at base
Leaf Scar Shape:
Crescent shaped
Organ Modifications:
Spines, Succulent leaves
Propagation:
Seed, Division - below ground parts
Optimal Temp.:
Medium
Light Level:
Medium
Maintenance:
Medium
Pest Susceptibility:
Fungal leaf spot, Mites, Root rot, Scale insects (Pest resistant, Disease resistant, Drought tolerant)
