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Tumble Mustard

Sisymbrium altissimum

Last reviewed: August 2026

Tumble Mustard (Sisymbrium altissimum)
Photo: (c) Steve Matson, some rights reserved (CC BY), uploaded by Steve Matson

Toxicity unknown

Tumble Mustard (Sisymbrium altissimum) 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"–48" H × 6"–24" W

Bloom

May, Jun

Pollinators

bees, beetles

Native alternatives to Tumble Mustard

Tumble Mustard is not native to the United States. These natives fill a similar role in a planting, matched on bloom season, bloom color and mature size.

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 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Tumble mustard is a tall annual wildflower that produces small yellow flowers in late spring and early summer. This drought-tolerant plant grows quickly and breaks away at the base when mature, rolling in the wind to disperse seeds.

In an HOA neighborhood

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

Works well in: backyard only.

  • Considered a noxious weed in many areas
  • Tumbleweed growth habit creates mess
  • Can spread aggressively and look unkempt

Wildlife value

The flowers attract bees and beetles during the blooming period in May and June.

Common questions

How much sun does Tumble Mustard need?
Tumble Mustard grows best in full sun conditions.
When does Tumble Mustard bloom?
Tumble Mustard blooms in May and June.
What pollinators does Tumble Mustard attract?
Tumble Mustard draws bees and beetles.
Is Tumble Mustard HOA-friendly?
Tumble Mustard takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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

Planning a bed around it? Start a free plan with this plant

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