Field guide
Fairy duster (Calliandra eriophylla)
Wikimedia Commons

also Mock mesquite

Fairy duster

Calliandra eriophylla

Family:
Fabaceae
Elevation:
1,000 ft – 5,000 ft
Bloom:
Feb – May
Region:
Southwest

A low, airy shrub with fine, ferny compound leaves that erupts in feathery pink-to-rose flower puffs made of long stamens, a favorite of hummingbirds in the lower and southern Southwest. It brings soft color to desert slopes and washes in late winter and spring.

Care · tuned to the Southwest

Water

Very drought tolerant once established; occasional deep water in spring encourages heavier bloom, but it needs little overall. Overwatering causes leggy, weak growth. Reblooms in response to monsoon moisture.

Sun & exposure

Full sun for best flowering, including reflected heat; tolerates light shade with fewer blooms.

Soil

Wants well-drained sandy, gravelly, or rocky soil; tolerates poor and alkaline ground. As a legume it needs no fertilizer.

In the Southwest

Frost-sensitive at its cold limits and best in warmer lower and southern Southwest zones, making it unreliable in the coldest high desert. A top hummingbird plant that also draws butterflies and native bees. Prune lightly after bloom to keep it compact; drought-deciduous in dry spells.

Common problems & fixes

  • Frost dieback during hard winter freezes

    Fix — Leave frozen stems in place over winter for protection and prune back to live wood in spring.

  • Woodiness and open, sparse habit with age

    Fix — Prune lightly in spring after frost danger to encourage fuller, more compact growth.

Pets & toxicity

Not documented as significantly toxic to dogs or cats; no notable poisoning hazard is commonly reported for this native legume.

Easy to confuse with

  • Baja fairy duster (Calliandra californica) — larger bright-red flower puffs
  • Mesquite (Prosopis) — similar ferny leaves but a large tree with pods

Sources

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