Zinnia acerosa
This species is the desert zinnia, a low perennial subshrub. It stands out for white daisies above tight gray‑green mounds. Plants excel in full sun with very sharp drainage and minimal water. Bloom peaks in summer. It is native to the desert Southwest and northern Mexico.
At‑a‑glance
- Group/Class: perennial species
- Height × spread: 4 to 10 in (10 to 25 cm) × 12 to 18 in (30 to 45 cm)
- Bloom window: June to August
- Color & flower form: white to off‑white single daisies
- Fragrance: 0 none
- USDA hardiness: zones 6 to 10
- Breeder / Year / Origin: unknown
- Pet safety: safe
How it differs
- Lowest, most xeric species in the genus used ornamentally
- Woody base and evergreen look in mild winters
- White rays rather than bright yellows common in Z. grandiflora
- Excellent for water‑wise, low‑maintenance plantings
Strengths
- Exceptional drought tolerance
- Heat and sun tolerant
- Stays compact without pruning
- Pollinator friendly
Care in one minute
- Plant in full sun with fast drainage.
- Soil: sandy or rocky; pH flexible.
- Irrigate lightly the first season; then sparingly.
- No fertilizer needed in lean soils.
- Shear lightly after bloom if desired.
- Hardy where winters are dry and soils drain fast.
Watch‑outs
- Declines in heavy or soggy soils
- Shorter bloom in cool, rainy summers
Best uses (tags)
xeric groundcover, rock gardens, slopes, habitat plantings
Provenance note
Native to the deserts of the southwestern U.S. and northern Mexico.
References
- NC State Extension Plant Toolbox – Zinnia acerosa
- USDA NRCS Plant Guide – Desert zinnia (Z. acerosa)
- USDA PLANTS – Zinnia acerosa
- ASPCA – Zinnia (non‑toxic to pets)
Written by: Your Flowers Guide editorial team
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