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in Tucson, Phoenix,
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Clematis ligusticifolia: Western White Clematis

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Description
Form: Climbing or mounding woody vine.
Lifespan: Perennial.
Leaf retention: Deciduous.
Growth rate: Rapid.
Mature Size: 20' long.
Flowers: Small, white, male and female on separate plants.
Bloom: Spring or summer.
Fruit: Seeds with large, showy white plumes on female plants may cover entire plant.
Leaves: Green, variable in shape and size, often lobed.
Stems: No thorns. Tendrils assist climbing.
Roots: Taproot. Spreads by rhizomes.
Wildlife: Attracts insects.
Toxic / Danger: All parts mildly poisonous.
Origin: Western North America.

Cultivation and Uses
USDA hardiness zones: 5-10.
Heat tolerant: Yes.
Drought tolerant: For 6-8 weeks, then dies to ground. Recovers with rain.
Sun: Full sun.
Water once established: Once or twice a month during drought.
Soil: Well drained, pH 5.6-8.5 (acidic to alkaline).
Prune: In winter, remove excess growth and stems to avoid vine becoming a thicket.
Litter: Seed plumes in fall, leaf drop in winter.
Propagation: Seed, cuttings and layering.
Uses: Ornamental.

Comments
Can become a dense thicket hiding dead leaves and plumed seeds if not thinned for several years. Difficult to eradicate when multiple taproots established.



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Clematis ligusticifolia: Western White Clematis - leaves

Clematis ligusticifolia: Western White Clematis - seed plumes

Clematis ligusticifolia: Western White Clematis