Hardiness: USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure: Full Sun
Bloom Color: Bright Yellow
Bloom Time: Mid Spring
Foliage: Deciduous Blue-Green
Other details: This plant is attractive to bees, butterflies and/or birds Flowers are fragrant Drought-tolerant; suitable for xeriscaping Suitable for growing in containers
Soil pH requirements: 6.6 to 7.5 (neutral)
Patent Information: Non-patented
Propagation Methods: From seed; direct sow after last frost Scarify seed before sowing
Seed Collecting: Allow pods to dry on plant; break open to collect seeds Properly cleaned, seed can be successfully stored
On Mar 23, 2005, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:
Mostly leafless, once in a while some temporary leaves in spring.
Springtime brings many bright little yellow flowers.
Very Heat tolerant.
A comparison between the flowers of five Palo Trees
--The Mexican Palo Verde (Parkinsonia aculeata), the upper petal starts out with red dots that eventually grow bigger and turn the entire top petal to red.
--The Palo Brea (Parkinsonia praecox), the upper petal has smaller & fewer red dots than the Mexican Palo Verde (P. aculeata) that don't grow bigger.
--The Blue Palo Verde (Parkinsonia florida), the upper petal is always a solid yellow just like the other four petals.
--The Little Leaf Palo Verde (parkinsonia microphylla), the upper petal is solid, all white, and the remaining petals are yellow.
--The Palo Brasil (Haematoxylum brasiletto), has flowers similar to Parkinsonia sp., and the top yellow petal has red dendritic streaks.
On Mar 18, 2005, Ulrich from Manhattan Beach, CA (Zone 11) wrote:
Palo Verde, or Paloverde, is native to our Southwest and comprises some of the chaparral in the mountains. When it blooms the most wonderful scent fills the air for miles around.
It has small leaves for only part of the year and tolerates very little water during the summer.
It grows readily from seed but is very susceptible to tent caterpillars. Alas, that's how I ultimately lost all of mine.
This plant has been said to grow in the following regions:
Phoenix, Arizona Quartzsite, Arizona Salome, Arizona Alpine, California Bonsall, California Manhattan Beach, California Ridgecrest, California Laguna Heights, Texas Rockport, Texas