Cistus x obtusifolius 'Thrive' (Rock rose 'Thrive')

Botanical name

Cistus x obtusifolius 'Thrive'

Other names

Rock rose 'Thrive', Sun rose 'Thrive', Cistus 'Thrive'

Genus

Cistus Cistus

Variety or Cultivar

'Thrive' _ 'Thrive' is a compact, rounded to spreading, frost-hardy, evergreen shrub with narrowly lance-shaped, dark green leaves, flushed bronze in winter, and, in summer, white flowers with yellow centres.

Foliage

Evergreen

Habit

Dense, Rounded, Small

Awards

RHS AGM (Award of Garden Merit)

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Colour

Flower

White in Summer

Foliage

Dark-green in All seasons

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How to care

Watch out for

Pests

Generally pest-free.

Diseases

Generally disease-free.

General care

Pruning

Pruning group 8 or 9. Lightly cut back shoots after flowering. When young, pinch back after flowering to maintain a bushy habit. Does not tolerate hard pruning. Leggy plants should be replaced.

Propagation methods

Softwood cuttings

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Monthly care advice

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Where to grow

Cistus x obtusifolius 'Thrive' (Rock rose 'Thrive') will reach a height of 0.6m and a spread of 1m after 5-10 years.

Suggested uses

Ground Cover, Cottage/Informal, Containers, Coastal, City, Beds and borders, Banks and Slopes, Mediterranean, Rock

Cultivation

Best planted in poor, well-drained, sandy soil in a sheltered, sunny site. Tolerates alkaline conditions but may become chlorotic in very chalky soil.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

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

Hardy (H4), Tender in frost (H3)

USDA zones

Zone 10, Zone 9, Zone 8

Defra's Risk register #1

Plant name

Cistus x obtusifolius 'Thrive' (Rock rose 'Thrive')

Common pest name

Alfalfa dwarf; Anaheim disease; California vine disease; Dwarf disease of alfalfa; Dwarf disease of lucerne; Leaf scald of oleander; Leaf scald of plum; Leaf scorch; Phony disease of peach; Pierce's disease of grapevine; Variegated chlorosis of citrus

Scientific pest name

Xylella fastidiosa subsp. multiplex

Type

Bacterium

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)

4

General biosecurity comments

A bacterial disease with a wide host range detected in Corsica. Although EU regulated; there remains some concern about the risk of introduction. This subspecies is known to be able to thrive in cooler climates. Should an outbreak occur; there would be a need for eradication action which would result in environmental and social impacts.

Defra's Risk register #2

Plant name

Cistus x obtusifolius 'Thrive' (Rock rose 'Thrive')

Common pest name

Alfalfa dwarf; Anaheim disease; California vine disease; Dwarf disease of alfalfa; Dwarf disease of lucerne; Leaf scald of oleander; Leaf scald of plum; Leaf scorch; Phony disease of peach; Pierce's disease of grapevine; Variegated chlorosis of citrus

Scientific pest name

Xylella fastidiosa subsp. pauca and related strains

Type

Bacterium

Current status in UK

Absent

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

2

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

3

General biosecurity comments

A bacterial disease with a wide host range causing substantial damage to olive production in the south of Italy. The priority is to prevent further spread from that area through robust EU regulation. This subspecies is unlikely to be able to thrive in the UK; but should an outbreak occur there would be a need for eradication action which would result in environmental and social impacts.

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/