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Conservatory GreenhousePalms

Washingtonia filifera

California fan palm

a medium to large palm, with a robust trunk. The long leaf stalks have sharp teeth near the base, and the fan-shaped, grey-green blades up to 3m long are erect at first, then spreading and arching. Dead foliage remains on the plant, hanging down to clothe the whole trunk. Creamy-white, tubular flowers are produced in huge sprays up to 5m long, usually in summer

Other common names
American cotton palm
Arizona fan palm
see moredesert fan palm
petticoat palm
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Size
Ultimate height
Higher than 12 metres
Time to ultimate height
20–50 years
Ultimate spread
2.5–4 metres
Growing conditions
Loam
Moisture
°Â±ð±ô±ô–d°ù²¹¾±²Ô±ð»å
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Cream Green Grey Silver
Autumn Green Grey Silver
Winter Green Grey Silver
Position
  • Full sun
Aspect

South–facing or °Â±ð²õ³Ù–f²¹³¦¾±²Ô²µ

Exposure
Sheltered
Hardiness
H1C
Botanical details
Family
Arecaceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus

Washingtonia are large evergreen palms with stout solitary trunks bearing long-stalked, rounded leaves palmately divided into linear segments, and large, arching panicles of flowers, followed by small, berry-like black fruits

Name status

Correct

Plant range
SW USA (CA & AZ) & NW Mexico (Bajo Clifornia)

How to grow

Cultivation

Grow under glass in peat-free, loam-based compost with added leaf mould and sharp sand, in full light. Water moderately, provide moderate humidity when in growth and apply a liquid fertiliser monthly during the summer. Water sparingly in winter

Propagation

Propagate by seed sown at not less than 24°C

Suggested planting locations and garden types
  • Architectural
  • Patio and container plants
Pruning

Needs no regular pruning, but dead leaves may be removed by cutting close to the leaf base leaving stubs to create a neat pattern

Pests

Glasshouse red spider mite and scale insects may be troublesome

Diseases

Generally disease-free

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