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Washingtonia robusta

Thread palm

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Key information

Plant type

General houseplant


Dramatic foliage



Skill level


photo by Fiona Lea, copyright GAP Photos (177028)

Plant details

Washingtonias are fine evergreen palms from the rocky, arid slopes of southern America and Mexico. W. robusta is a fast-growing palm with a tall, slender trunk and massive fan-shaped leaves. In warm, costal gardens it can be grown outside but in cooler climates grow as an indoor or conservatory pant. Plant in loam-based potting compost and top-dress each spring.

Family: Arecaceae

Genus: Washingtonia

Species: robusta

Plant type: General houseplant

Foliage colour: Mid-green

Feature: Dramatic foliage

Sun exposure: Full sun

Soil: Well-drained/light

Hardiness: Tender

Skill level: Experienced

Height: 2500cm

Spread: 300cm

Time to plant seeds: March to May

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