Ranunculus aquatilis (Common water-crowfoot)

Botanical name

Ranunculus aquatilis

Other names

Common water-crowfoot, Water buttercup

Genus

Ranunculus Ranunculus

Species

R. aquatilis - R. aquatilis is an aquatic plant with branching thread-like underwater leaves, toothed floater leaves and small white flowers.

Foliage

Deciduous

Habit

Mat Forming

Colour

Flower

White in Summer

Foliage

Light green in Spring; Light green in Summer; Light green in Autumn

General care

Propagation

Seeds and stem fragments.

Monthly care advice

Where to grow

Ranunculus aquatilis (Common water-crowfoot) will reach a height of 0.1m and a spread of 2m after 5-10 years.

Suggested uses

Aquatic, Low Maintenance

Cultivation

Free-floating or submerged in ponds. In fast flowing water the floaters may not be grown.

Soil type

Clay, Loamy

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Exposed, Sheltered

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

Hardy (H4)

USDA zones

Zone 11, Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

Defra's Risk register #1

Plant name

Ranunculus aquatilis (Common water-crowfoot)

Common pest name

Scientific pest name

Hyalesthes obsoletus

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)

4

General biosecurity comments

Planthopper which can vector the pathogen causing Potato stolbur disease. Present elsewhere in Europe and increasing its range due to a new a nettle-preferring race. Main breeding hosts are not traded as planting material; but some minor hosts (e.g. Lavender) are.

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/