in bloom
now
through Oct
Bloom calendar
Zinnia grandiflora
perennial species
At‑a‑glance
- Group/Class: perennial species
- Height × spread: 4 to 8 in (10 to 20 cm) × 12 to 18 in (30 to 45 cm)
- Bloom window: summer to frost
- Color & flower form: bright yellow single daisies
- Fragrance: 0 none
- USDA hardiness: zones 4 to 8
- Breeder / Year / Origin: unknown
- Pet safety: safe
How it differs
- Perennial, low and mounding versus tall annual types
- Very drought tolerant once established
- Small flowers and needlelike leaves give a fine texture
- Good erosion control on sunny slopes
Strengths
- Survives heat, wind, and poor soils
- Long bloom in summer into fall
- Rhizomatous habit can knit ground
- Attracts bees and butterflies
Care in one minute
Full sun and sharp drainage are essential.
Soil: sandy or gravelly; avoid heavy clay.
Water sparingly after establishment.
Do not overfertilize; growth becomes lax.
Shear lightly after first flush to tidy.
Hardy perennial in much of the West and Plains.
Watch‑outs
- Root rot in heavy or wet soils
- Slow to establish in rich, irrigated beds
Best uses (tags)
Provenance note
Native to the central and southwestern U.S. into northern Mexico.
References
- NC State Extension Plant Toolbox – Zinnia grandiflora
- USDA Forest Service – Wild Zinnia (Zinnia grandiflora)
- Kew – Plants of the World Online: Zinnia grandiflora
- ASPCA – Zinnia (non‑toxic to pets)
