Garden Oracle / Drought and Heat Tolerant Gardening / Tucson - Phoenix - Arizona - California

Growing Cercidium hybrid:
Hybrid Palo Verde / 'Desert Museum'

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Form: Tree.
Leaf retention: Cold and drought deciduous.
Growth rate: Moderate to rapid depending upon water.
Mature Size: 20-30' high and 20-40' wide.
Flowers: Showy 1" yellow flowers with five petals.
Bloom: A profuse bloom in spring, lasting about one month. Some individuals may continue to produce a few flowers through summer. Bloom times start later at higher elevations.
Fruit: Light brown seed pods vary from few to many, depending on cultivar.
Leaves: Small, oval, green leaflets. This tree provides light, filtered shade.
Stems: Yellow-green, photosynthesizing, smooth bark, spineless, or spines are weak and non-sharp.
Roots: Nitrogen-fixing*.
Wildlife: The seedpods attract birds and small mammals.
Toxic / Danger: No.
Origin: California, Nevada, Arizona, and Mexico.

Cultivation and Uses
USDA hardiness zones: 8-11a.
Heat tolerant: Yes.
Drought tolerant: Yes.
Sun: Full sun.
Water once established: Deep water once a month. Supplemental water improves growth rate.
Soil: Well drained, pH 5.6-8.5 (acidic to alkaline). *Do not use a nitrogen fertilizer.
Prune: In warm weather, remove the lowest branches for walk-under tree.
Litter: Flowers, pods.
Propagation: Cuttings. The seed is not true to its parents.
Uses: Ornamental.

These hybrids are crosses between Blue, Yellow, and sometimes Mexican, Palo Verde species which are members of the Legume family (Fabaceae). The most well-known hybrid is 'Desert Museum'.

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Cercidium hybrid: Hybrid Palo Verde / 'Desert Museum' - flower

Cercidium hybrid: Hybrid Palo Verde / 'Desert Museum' tree

Latest update: November 2020
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