How much sun does Ragged Rockflower need?

Ragged Rockflower grows best in full sun conditions.

When does Ragged Rockflower bloom?

Ragged Rockflower blooms in March, April, and May.

Where is Ragged Rockflower native?

Ragged Rockflower (Crossosoma bigelovii) is native to AZ, CA, NV, per the World Checklist of Vascular Plants (Kew).

What pollinators does Ragged Rockflower attract?

Ragged Rockflower draws bees and beetles.

Is Ragged Rockflower HOA-friendly?

Ragged Rockflower is generally an HOA-friendly choice in the right placement, with low maintenance.

Ragged Rockflower

Name: Pollinator Patch
Author: Pollinator Patch

Crossosoma bigelovii

Last reviewed: August 2026

Toxicity unknown

Ragged Rockflower (Crossosoma bigelovii) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

low

Size

12"–36" H × 12"–36" W

Bloom

Mar, Apr, May

Native to

AZ, CA, NV

Pollinators

bees, beetles

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 437 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

Southern California Mountains Mojave Basin and Range North American Deserts Arizona/New Mexico Mountains Madrean Archipelago Sonoran Basin and Range

Ragged rockflower is a compact evergreen shrub that produces white flowers with yellow centers in spring. This native shrub thrives in full sun with minimal water once established, making it an excellent choice for water-wise landscapes.

In an HOA neighborhood

Ragged Rockflower is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Wildlife value

The spring blooms attract native bees and beetles for pollination. Its compact size provides shelter for small beneficial insects.

Common questions

How much sun does Ragged Rockflower need?: Ragged Rockflower grows best in full sun conditions.
When does Ragged Rockflower bloom?: Ragged Rockflower blooms in March, April, and May.
Where is Ragged Rockflower native?: Ragged Rockflower (Crossosoma bigelovii) is native to AZ, CA, NV, per the World Checklist of Vascular Plants (Kew).
What pollinators does Ragged Rockflower attract?: Ragged Rockflower draws bees and beetles.
Is Ragged Rockflower HOA-friendly?: Ragged Rockflower is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Ragged Rockflower? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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