New Mexico Locust

Robinia neomexicana

Native to:
Mexico, United States

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Robinia
Species:
Robinia neomexicana
USDA Symbol:
RONE

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
800 cm
Light Requirements:
Part Shade
Drought Tolerance:
High
Bloom Months:
may,jun,jul
Bloom Colors:
pink, rose

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★★★★★ Documented Lepidoptera association (GBIF)
Caterpillars:
★★☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★★☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Agonopterix sanguinella, Cecropis moth (Automeris cecrops), Euclea dolliana, Leucoptera robinella, oak leafminer (Chrysaster ostensackenella), Oslar's eacles (Eacles oslari), tricolor buckmoth (Hemileuca tricolor), Mexican yellow (Eurema mexicana), Silver-spotted Skipper (Epargyreus clarus)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, birds
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from root crown after fire; seeds also germinate well on burned soil.

Soil Requirements

Soil Type:
rocky, well-drained sandy loam
pH:
6.0 - 8.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
commonly found in arid and semi-arid regions

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
14–30 days
Notes:
Seeds require scarification (hot water or mechanical) followed by cold stratification for 30-60 days.

Pre-treatment: Scarification using dry tumbling with grit and pea gravel for 5 to 7 days. Soaking/Leaching in a rubber-lined rock tumbler jar with tap water, changing water daily to remove any inhibitors.

Establishment: Seeds collected in Grand Canyon National Park, Arizona. No stratification required. The duration of tumbling for the soaking/leaching process is based on the appearance of the seed and the leach water.

Source: npn.rngr.net