Overview
Romneya trichocalyx is a perennial in the genus Romneya, part of the Q144723 family. Romneya trichocalyx grows best in full sun, and tolerates well-drained soils. It is native to California and Baja California.
About
Romneya trichocalyx is a perennial poppy from California and Baja California that suits dry, exposed, full-sun sites. It prefers well-drained soil and tolerates dry conditions. Flowering runs from June to August. It is also known as the hairy Matilija poppy or Californian poppy.
Wikipedia contributors, CC BY-SA 4.0 — Romneya trichocalyx
About the genus
Romneya is a genus of flowering plants belonging to the poppy family (Papaveraceae). There are two species in the genus Romneya, which was named after the Irish astronomer John Thomas Romney Robinson; the first discovered species R. coulteri commemorates Romney Robinson's close friendship with the Irish botanist Thomas Coulter.
Wikipedia contributors, "Romneya", CC BY-SA 4.0 — Romneya
In the garden
Romneya trichocalyx is a perennial species originating from California and Baja California where it is adapted to dry, exposed sites. In the UK it is grown for its summer flowering and for situations where soil drainage and sun are the priority rather than shade or high moisture. Give the plant a position in full sun with free-draining soil and avoid waterlogged ground; it performs in dry conditions and tolerates exposed aspects. These basic site requirements replicate the plant's native tendency for open, well-drained ground and reduce the need for sheltering in wind-prone spots. Flowering occurs from June to August, so place it where summer blooms can be seen from paths or terraces. In a UK garden Romneya trichocalyx is best used on sunny banks, in gravel or Mediterranean-style beds, or where a dry, exposed border needs a summer display. Planting where drainage is assured and the roots remain comparatively dry will help it reach its flowering period without routine moisture management. Locate it where the June–August display can be appreciated, as that is when the plant is at its most conspicuous.
Growing conditions
Best soil and position for Romneya
- Sunlight
- full sun
- Soil type
- well-drained
- Soil moisture
- dry
- Exposure
- exposed
Plant details
Romneya trichocalyx size, habit and characteristics
- Plant type
- perennial
- Native to
- California, Baja California
Care notes
Pruning and caring for Romneya trichocalyx
- Propagation
- seed, cuttings
Frequently asked questions
Where is the best place to plant Romneya trichocalyx?
Romneya trichocalyx prefers full sun. It suits exposed positions.
What soil does Romneya trichocalyx need?
Romneya trichocalyx grows best in well-drained soil. Aim for soil that stays dry.
How do I propagate Romneya trichocalyx?
Seed, cuttings.
More in the Romneya genus
- Romneya × hybrida 'White Cloud'White Cloud Matilija Poppy
- Romneya × hybrida of gardensMatilija poppy
- Romneya coulteri