Cycas revoluta (Cycad)

Botanical name

Cycas revoluta

Other names

Cycad, Japanese sago palm

Genus

Cycas Cycas

Species

C. revoluta - C. revoluta is a tender, evergreen perennial with a stout stem topped with leathery, glossy, pinnate leaves. It is architectural although slow-growing and requiring over-wintering indoors.

Native to

China, Japan

Foliage

Evergreen

Habit

Single stemmed palm, cycad or tree

Awards

RHS AGM (Award of Garden Merit)

Colour

Foliage

Green in All seasons

How to care

Watch out for

Specific pests

Glasshouse red spider mite

Diseases

Generally disease-free.

General care

Propagation methods

Seed, Suckers

Monthly care advice

Where to grow

Cycas revoluta (Cycad) will reach a height of 1.5m and a spread of 1.5m after 20-50 years.

Suggested uses

Architectural, Containers, Sub-Tropical

Cultivation

Under glass, grow in loam-based compost with added leaf mould & grit. Place in full light with shade from hot sun. Needs moderate humidity. Water moderately in growth, sparingly in winter. In frost-free areas, grow in moist but well-drained soil in bright light with protection from full sun.

Soil type

Loamy

Soil drainage

Moist but well-drained

Soil pH

Acid, Neutral

Light

Partial Shade

Aspect

South, East

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Indoor unheated (H2)

USDA zones

Zone 11, Zone 10, Zone 9

Defra's Risk register #1

Plant name

Cycas revoluta (Cycad)

Common pest name

pink wax scale; red was scale; ruby wax scale

Scientific pest name

Ceroplastes rubens

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Based on its biology and low potential impact continued action on this pest in the UK would not be considered appropriate. It is likely to be of more concern to southern Member States of the EU; as it is an economic pest of citrus.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7^th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/