How much sun does Colbaga need?

Colbaga grows best in full sun conditions.

When does Colbaga bloom?

Colbaga blooms in April, May, and June.

Where is Colbaga native?

Colbaga (Brassica rapa) is native to AR, per the USDA PLANTS Database and regional native plant society lists.

Is Colbaga toxic to livestock?

The USDA PLANTS Database does not flag Colbaga as toxic to livestock.

What pollinators does Colbaga attract?

Colbaga draws bees and beetles.

Is Colbaga HOA-friendly?

Colbaga takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Colbaga

Name: Pollinator Patch
Author: Pollinator Patch

Brassica rapa

Last reviewed: June 2026

The USDA PLANTS Database (opens in new tab) does not flag Colbaga as toxic to livestock.

Light

full sun

Water

medium

Size

12"–36" H × 6"–18" W

Bloom

Apr, May, Jun

Native to

Pollinators

bees, beetles

Browse plants for this ecoregion

Coast Range Sierra Nevada Central California Valley Central California Foothills and Coastal Mountains Southern California Mountains Central Basin and Range Mojave Basin and Range Chihuahuan Deserts Sonoran Basin and Range

Brassica rapa, commonly known as field mustard or turnip, is an annual herb that grows 1-3 feet tall with yellow four-petaled flowers from April through June. This fast-growing plant produces edible leaves and roots, though it can spread readily by seed if not managed.

In an HOA neighborhood

Colbaga takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Considered a weed by most HOAs
Can self-seed aggressively
Dies back completely as annual

Wildlife value

The bright yellow flowers attract bees and beneficial beetles during spring and early summer. Seeds may provide food for birds when allowed to mature.

Common questions

How much sun does Colbaga need?: Colbaga grows best in full sun conditions.
When does Colbaga bloom?: Colbaga blooms in April, May, and June.
Where is Colbaga native?: Colbaga (Brassica rapa) is native to AR, per the USDA PLANTS Database and regional native plant society lists.
Is Colbaga toxic to livestock?: The USDA PLANTS Database does not flag Colbaga as toxic to livestock.
What pollinators does Colbaga attract?: Colbaga draws bees and beetles.
Is Colbaga HOA-friendly?: Colbaga takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

Add this plant to your garden

iPhone app Android app

Not sure where to start? Take the 2-minute yard quiz