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ROMNEYA coulteri
Commonly known as Matilija poppy
Huge white single poppy flowers, heavily scented
Further Reading....
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DeciduousUpright, suckering subshrub. Ovate to rounded, pinnatifid (with lobes) intensely glaucous, grey-green leaves to 12cm (5in) long, with 3-5 lance-shaped lobes. Produces solitary flowers to 12cm (5in) across, with prominent yellow stamens.
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White
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Height1-2.5m (3-8ft)
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SpreadIndefinite
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Hardy - cold winterHardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F)
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Full sun
ROMNEYA coulteri
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Additional FeaturesGood to knowProduces flowers over a long period in summer. Recommended for the back of a borderPests & DiseasesCaterpillars, verticillium wilt.Place of originUSA (southern California), northern Mexico.Youtube videoHttps://youtu.be/yUOOgU4ZkHc
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Flower ShapeCup-shapedShallowly cup-shaped.
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Garden Location/ConditionsSub-tropical / mediterranean
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HardinessFully hardy
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Pruning groupPruning group 4Suitable for: Deciduous trees and shrubs that flower on current year's growth or are grown for winter stem effect.
Pruning: Hard prune to a low permanent framework.
When: Annually in early Spring.
RHS group 5, 6 & 7 -
Scented PlantsScented flowers
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Seasonal InterestSummer
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Soil ConditionsFertile well drained soilShelter from cold winds. Provide a dry winter mulch
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Cold weather damage to evergreen plants
Romneya - Growing Guide


















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Useful extras...

Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00

Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
2 options from £6.00

Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50

Garden Goodies
Slate Plant Labels
These wonderfully tactile natural slate plant labels are hand made in Cornwall and come with a chalk pen.
Just stick them in your pot or border. Pack of 6.
Only £10.20

Garden Goodies
Slate Tie-on Plant Labels
Hand made in Cornwall, these delightful natural slate labels are perfect for pots.
Comes with chalk pen. Pack of 5
Only £10.20