Thurber's Sandpaper Plant
Petalonyx thurberi
Last reviewed: September 2026
Toxicity unknown
Thurber's Sandpaper Plant (Petalonyx thurberi) 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
May, Jun, Jul, Aug
Native to
AZ, CA, NV
Pollinators
bees, butterflies
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 areaBrowse plants for this ecoregion
Thurber's sandpaper plant is a compact native shrub with rough-textured leaves and clusters of small white to cream flowers that bloom from late spring through summer. This drought-tolerant plant naturally forms a rounded shape and goes dormant in winter, losing its leaves until spring growth returns.
In an HOA neighborhood
Thurber's Sandpaper Plant 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: mid zone, backyard only.
- Appears completely bare and stick-like when dormant
- Small flowers and rough foliage may look unkempt to some
- Native plant appearance differs from traditional landscaping
Wildlife value
The long blooming period attracts various native bees and butterflies throughout the warmer months. Its nectar-rich flowers provide an important food source during summer.
Common questions
- How much sun does Thurber's Sandpaper Plant need?
- Thurber's Sandpaper Plant grows best in full sun conditions.
- When does Thurber's Sandpaper Plant bloom?
- Thurber's Sandpaper Plant blooms in May, June, July, and August.
- Where is Thurber's Sandpaper Plant native?
- Thurber's Sandpaper Plant (Petalonyx thurberi) is native to AZ, CA, NV, per vouchered herbarium specimen records and regional native plant society lists.
- What pollinators does Thurber's Sandpaper Plant attract?
- Thurber's Sandpaper Plant draws bees and butterflies.
- Is Thurber's Sandpaper Plant HOA-friendly?
- Thurber's Sandpaper Plant 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 vouchered herbarium specimen records and regional native plant society lists. 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.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Thurber's Sandpaper Plant? 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
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