Tower Mustard
Turritis glabra
Last reviewed: June 2026
Light
part shade
Water
medium
Size
12"–36" H × 4"–12" W
Bloom
May, Jun, Jul
Native to
AZ, CA, CO, CT and 33 more states
Pollinators
bees, beetles
Browse plants for this ecoregion
Tower mustard is a narrow, upright biennial that produces tall spikes of small white flowers from late spring through summer. This native wildflower forms a compact basal rosette in its first year, then sends up slender flowering stems that can reach up to 3 feet tall.
In an HOA neighborhood
Tower Mustard takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Appearance is very wild and weedy
- Tall sparse growth looks unkempt
- Common name includes 'mustard' which has negative associations
Wildlife value
The flowers attract bees and beetles during the blooming period from May through July. As a member of the mustard family, it provides nectar for various native pollinators.
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.
Does Tower Mustard fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.