California Tree Poppy
Romneya coulteri
Price comparison:
£18.50 – £36.99
From 2 UK retailers
California Tree Poppy is a garden perennial suited to full sun, growing to around 60cm. Flowers appear from June to August. A reliable choice for pollinator-friendly gardens.
Sun
☀️ Full Sun
Water
💧💧 Moderate
Hardiness
🌡️ H5 (Hardy -10°C)
Size
📏 60cm tall × 45cm wide
Flowers
🌸 jun,jul,aug
Wildlife
🐝 Pollinator-friendly
Compare Prices
Prices from 2 retailers
Prices last checked: 26 Aug 2026
Prices exclude delivery. Check retailer for final price.
Retailers shown in order of price — lowest first within each size group.
| Retailer | Price | Pot Size | Action |
|---|---|---|---|
| Plant Providers | £18.50Price checked 30 days ago | 2L | View at Plant ProvidersOpens product page · Affiliate info |
| Crocus £5.99 flat rate per order | £36.99Out of stock | 2L | View at CrocusOpens product page · Affiliate info |
Plant Providers
Size: 2L
Crocus
£5.99 flat rate per order
Size: 2L
Prices shown exclude delivery. Delivery charges vary by retailer — see individual listings for details.
Prices may vary. Click through to the retailer for current pricing.
Prices last checked: 26 Aug 2026
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Plant Information
About this plant
California Tree Poppy is a garden perennial suited to full sun, growing to around 60cm. Flowers appear from June to August. A reliable choice for pollinator-friendly gardens.
Latin Name
Romneya coulteri
Family
Hardiness Zone
H5
Care Level
moderate
Sun Exposure
full-sun
Water Needs
moderate
Flowering Season
jun,jul,aug
Mature Height
60cm
Frequently Asked Questions
How much does California Tree Poppy cost in the UK?
California Tree Poppy prices in the UK range from £18.50 to £36.99 depending on pot size and retailer. The cheapest price is currently at Plant Providers at £18.50. Prices are checked nightly across 2 UK nurseries.
Where can I buy California Tree Poppy online in the UK?
You can buy California Tree Poppy from 2 UK nurseries including Plant Providers, Crocus. ComparePlants.uk compares prices across all of them so you can find the best deal.
What is the scientific name for California Tree Poppy?
The scientific name for California Tree Poppy is Romneya coulteri.
Related reading
Best Plants for Late-Summer Colour
Give your garden a burst of energy when the rest of the world seems to be winding down, with these vibrant and hardy plants for late-summer colour.
Read the guide →Best Plants for a Long Summer Display
For a summer border that keeps on giving, focus on plants like salvia, geranium, verbena, and echinacea, which flower for months and demand little fuss.
Read the guide →How to Support Wildlife in August
In August, supporting garden wildlife in the UK means providing nectar-rich flowers for pollinators, leaving seed heads for birds, and making your garden a welcome haven for hedgehogs and amphibians.
Read the guide →Similar Plants
