Romneya coulteri Californian Tree Poppy 200mm

Romneya coulteri, commonly known as the Californian Tree Poppy, is a spectacular large perennial shrub grown for its enormous, crêpe-like white flowers with golden centres. Flowering from late spring through summer, it creates one of the most dramatic floral displays available for open gardens and feature planting.

The striking blooms sit above bold grey-green foliage, making this plant a standout in dry gardens, coastal landscapes and sunny borders. Once established, Romneya coulteri is extremely drought tolerant and thrives with minimal care, rewarding gardeners with show-stopping flowers year after year.

Best suited to full sun and well-drained soil, Californian Tree Poppy prefers space to spread and performs best in warm, open positions. It is ideal for large gardens, slopes and informal naturalistic plantings, where its size and presence can be fully appreciated.

Plant Details

• Botanical name: Romneya coulteri
• Common name: Californian Tree Poppy
• Plant type: Perennial shrub
• Flower colour: White with yellow centre
• Flowering period: Late spring to summer
• Foliage: Grey-green
• Growth habit: Upright, spreading
• Approx. size: 2–3m high x 2–4m wide
• Sun position: Full sun
• Water needs: Low once established
• Uses: Feature plant, dry gardens, coastal gardens, large landscapes