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New Mexico Locust
Robinia neomexicana
New Mexico Locust
Currently unavailable
Native to Southern Utah and a member of the pea family, with attractive purple flowers in summer. Rather adaptive, its size depends on environmental conditions. Roots are prolific and suckering, creating thick stands in moist, sunny locations or withstanding drought and heat in rocky, dry conditions. Can grow to be a tree up to 30' or just a shrub around 8'. Often found growing alongside Gambel oak. Highly attractive to pollinators like hummingbirds. While foliage and flowers are a favorite to wildlife and cattle, the seeds are highly toxic to humans. Stronger wood than Robinia pseudoacacia with more thorns. Great for erosion control.
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Plant facts
Good to know
- Part of our native plants collection, a specialty of ours.
- Waterwise — suited to low-water landscapes once established.
- Attracts birds.
- Attracts pollinators.
- Deer resistant.
- Tolerates shade.
- Suitable for Utah Lake secondary water systems.
Quick answers
How big does New Mexico Locust get?
About 10-12' tall and 12-15' wide at maturity.
How much sun does New Mexico Locust need?
Full Sun to Part Shade (3 to 6+ hours Sun).
How much water does New Mexico Locust need?
Low water use — it is one of our waterwise plants.
Will New Mexico Locust grow in Utah and the Intermountain West?
It is rated hardy to USDA zone 5, so it suits sites in zone 5 or warmer. The Salt Lake Valley floor is mostly zone 7; benches, mountain valleys and high plains in Utah, Idaho, Montana, Colorado and Wyoming are colder, often zones 3–6, so check the zone for your site.
Is New Mexico Locust deer resistant?
Yes, deer usually leave it alone.
Where can I buy New Mexico Locust in Utah?
Progressive Plants in Copperton, Utah carries it, but it is not available right now. You can join the waitlist to hear when it's back.
Can landscape contractors buy New Mexico Locust wholesale?
Yes. Landscape contractors and architects with a Progressive Plants wholesale account get trade pricing, bulk ordering and shipping across Utah, Idaho, Montana, Colorado, Wyoming and Nevada on our own trucks or by freight ($1,500 minimum outside our local delivery area). Apply at progressiveplants.com/wholesaleapp.html or call 801-565-7333.
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