Blue Alba mesquite, a large multi-trunk shade tree with a broad canopy of feathery blue-green foliage

Blue Alba Mesquite

Prosopis alba 'Blue'
Categories:
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Light
Water
Low water once established. Water deeply through establishment, then irrigate approximately every 2–4 weeks during hot, dry weather, adjusting for soil drainage and rainfall. Reduce watering substantially in winter; avoid frequent, shallow irrigation.
Toxicity
Description
A heat-loving selection of Argentine mesquite with fine-textured, blue-green foliage and a broad canopy that provides filtered shade in Phoenix landscapes.
Deciduous / Evergreen
Growth Rate
Flower Color
Foliage Color
Non-toxic to humans; pods may harm livestock if eaten in large quantity
Care Instructions

Light: Full sun; thrives in intense desert sunlight and reflected heat.

Water: Low water once established. Water deeply through establishment, then irrigate approximately every 2–4 weeks during hot, dry weather, adjusting for soil drainage and rainfall. Reduce watering substantially in winter; avoid frequent, shallow irrigation.

Soil: Well-drained sandy, gravelly, or loamy soil; tolerates alkaline desert soils. Avoid persistently wet or poorly drained locations.

Mature size: Approximately 30–40 feet tall and 30–50 feet wide, depending on irrigation, pruning, and growing conditions.

Bloom: Primarily spring to early summer, generally April–June in Phoenix.

Evergreen / deciduous: Winter-deciduous to semi-evergreen in Phoenix; leaf retention depends on winter temperatures.

Growth rate: Fast with supplemental irrigation; moderate under drier conditions.