Wildflower Archive

woodland wildflower

Rocky Mountain zinnia

Zinnia grandiflora

Also known as Plains Zinnia, Prairie Zinnia, Little Golden Zinnia, Yellow Zinnia

Rocky Mountain zinnia (Zinnia grandiflora)1 of 2
NM Patrick Alexander from Las Cruces

Native to Arizona, Colorado, Kansas, New Mexico, Oklahoma, and Texas

Kansas to Nevada, south to western Texas, Arizona, and northern Mexico as far south as Zacatecas

  • Light Partial shade Sun tolerance
  • Moisture Dry Moisture preference
  • Zones n/a Cold to heat range
  • Bloom May–Oct Flowering time
  • Height up to 8 in to 20 cm
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A woodland wildflower for partial shade and lean, dry soil. At up to 8 in, it tucks into shade gardens and woodland edges.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Pollinators & wildlife

  • Butterflies Common Buckeye
    also Fiery Skipper, Painted Lady, Gray Hairstreak +18 more American Lady, Orange Sulphur, Variegated Fritillary, Common Checkered-Skipper and Allies, Checkered White, Dainty Sulphur, Phaon Crescent, Marine Blue, Bordered Patch, Reakirt's Blue, Western Pygmy-Blue, Funereal Duskywing, Common Sootywing, Orange Skipperling, Abaeis nicippe, Junonia evarete nigrosuffusa, Cynthia cardui, Fulvia Checkerspot
  • Bees Ligated Furrow Bee
    also Western Honey Bee, Tripartite Sweat Bee, Protandrena aethiops +1 more Pseudopanurgus fraterculus
  • Flower flies Dorcadion Bee Fly also Exoprosopa brevirostris, Poecilanthrax lucifer
  • Also visited by
    • Moths: Gilded Seedcropper

Butterflies that use this plant

Documented host and nectar records. Each links to a planting guide for that butterfly.

Full plant details

Where it grows

Habitat
WoodlandThe wild plant community it grows in.
Native range
Arizona, Colorado, Kansas, New Mexico, Oklahoma, and TexasUnited States (6): AZ, CO, KS, NM, OK, TX. Where it grows wild on its own, by state and province.
Native distribution
Kansas to Nevada, south to western Texas, Arizona, and northern Mexico as far south as ZacatecasThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Partial shadeHow much sun it takes, from full sun to full shade.
Moisture
DryThe soil dampness it prefers, from dry to wet.
Soil
Dry, calcareous soils. Sandy Loam, Sandy, Gravelly, Limestone/chalky, Limestone-based, Caliche typeThe soils it grows in naturally.
Water use
LowHow thirsty it is, a rough guide to how often to water.

Growth & form

Height
up to 8 in (to 20 cm)Typical mature height.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).

Flowers, foliage & fruit

Type
WildflowerWhat kind of plant it is.
Bloom
May–OctWhen it flowers.
Flower color
YellowThe bloom color, or colors.
Toxicity
None knownWhether any part is poisonous to people or pets.