Bloomipedia
Rocky Mountain zinnia (Zinnia grandiflora)
Photo: mark-groeneveld via iNaturalist · CC BY 4.0 · resized

Flower profile

Rocky Mountain zinnia

Zinnia grandiflora

Native to New Mexico

Rocky Mountain zinnia is a wildflower that USDA PLANTS lists as native in the lower 48 states. In New Mexico it's most often seen in bloom in May–October.

6states
1,202NM sightings*
3,161U.S. sightings*

*iNaturalist research-grade observations, as of October 17, 2026.

On our lists for: New Mexico

Quick look

Zinnia grandiflora is a species of flowering plant in the family Asteraceae known by the common names Rocky Mountain zinnia and plains zinnia. It produces a subshrub with yellow-orange flowers.

  • It belongs to the Asteraceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) / a subshrub with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 6 states. USDA PLANTS
  • NatureServe lists it as native to New Mexico. NatureServe
  • In New Mexico, most iNaturalist sightings of it in flower come in May–October. iNaturalist
  • iNaturalist has 1,202 research-grade sightings of it in New Mexico, ranking #33 among the 109 flowers on our New Mexico list. iNaturalist

Rocky Mountain zinnia gift ideas

Handmade rocky mountain zinnia gifts from independent makers.

When does it bloom?

In New Mexico, most flowering sightings come in May–October.

Flowering records by month in New Mexico (iNaturalist research-grade observations marked “Flowering”) (80 records)

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
G4 Apparently secure worldwide. NatureServe
New Mexico
Not listed Not on New Mexico state endangered plant species (19.21.2.9 NMAC). NatureServe: SNR, not yet ranked in New Mexico. 19.21.2.9 NMAC
Rare elsewhere
No other U.S. state ranks it S1, S2, SH or SX.

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peopleNot well documented

None of the sources we checked (NC State Extension (no edibility or poison notes on its page), USDA PLANTS) say whether it's edible or poisonous for people. NC State Extension

For petsNon-toxic to dogs, cats and horses

ASPCA's entry “Zinnia” (Zinnia species), which covers the whole genus, lists it as non-toxic to dogs, cats and horses. Eating lots of any plant can still upset a pet's stomach. ASPCA

🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.

Where does it grow?

USDA PLANTS records Rocky Mountain zinnia in 6 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Arizona, Colorado, Kansas, New Mexico, Oklahoma, Texas.

New Mexico counties with USDA records: Bernalillo, Catron, Chaves, Cibola, Colfax, Curry, De Baca, Dona Ana, Eddy, Grant, Guadalupe, Harding, Hidalgo, Lea, Lincoln, Luna, McKinley, Mora, Quay, Roosevelt, San Juan, San Miguel, Sandoval, Santa Fe, Sierra, Socorro, Torrance, Union, Valencia.

More New Mexico flowers

Sources