Sphaeralcea ambigua

A rugged Southwestern native available in a palette of orange, white, pink, and lavender that thrives on neglect.
Hardy in USDA zones 6-11; a semi-evergreen low-desert native that shrugs off frost and extreme heat, thriving across low and mid elevations on rainfall alone.
AMWUA Notes
Skin and eye irritant β wear gloves when handling.
Extremely drought tolerant β water every 2-3 weeks in summer and rarely otherwise; it blooms on rainfall and rots in overly wet or poorly drained soil.
Shear the whole plant back by half after the spring bloom to remove spent stalks, tidy the sprawl, and often trigger a lighter second flush; wear gloves, as the foliage hairs irritate skin.
None needed; it thrives on lean, unimproved desert soil.
Essentially pest-free; the main issue is a floppy, open habit if overwatered or grown in rich soil.
Semi-evergreen perennial that peaks in spring, especially after wet winters; short-lived but reseeds prolifically to renew the stand.
Lean, rocky, gravelly, fast-draining desert soils; thrives on hot, dry, disturbed ground; rots in rich or overwatered soil.
Needs sharp, fast-draining soil.
None β thrives in lean desert soil without fertilizer.
Seed; reseeds prolifically. The deep taproot makes it difficult to transplant except as young seedlings.
3 ft
Deep taproot resents disturbance; short-lived but reseeds freely into volunteers. Wear gloves, as foliage hairs irritate skin.
Attracts
Wildlife Value
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Data from 2024 AMWUA βLandscape Plants for the Arizona Desertβ guide.