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Cephalocereus senilis
Old Man Cactus
Information by: PlantMaster Photographer:
Description
This cactus will slowly grow 20-50' tall. It has long white hairs and yellow spines. Only plants over 15' tall will bloom; it produces rose colored flowers that bloom at night. It does best in full sun and dry, rocky, well draining soil. It will need afternoon shade in low desert areas. Water occasionally in summer but it will need no watering in winter.
Sun
Full
Water
Very Low
Growth Rate
Slow
Soil Type
Rocky
Soil Condition
Poor, Well-drained, Dry
Soil pH
Neutral, Basic
Adverse Factors
Thorns/Spines
Water Saving Tip:
Apply a layer of mulch around plants to reduce moisture loss.
Choose organic mulches, such as shredded bark, compost or aged sawdust.