Illustration. See the retailer's page for photos of the actual plant.
California Lilac Trewithen Blue
Ceanothus 'Trewithen Blue'
Available at:
3 UK retailers
Prices below — pot sizes not stated, so not ranked
California Lilac Trewithen Blue is a drought-tolerant flowering shrub reaching about 2m tall. Produces flowers from May and June. A favourite with bees and other pollinators.
Sun
☀️ Full Sun
Water
💧 Low (Well-drained)
Hardiness
🌡️ H4 (Half Hardy)
Size
📏 2.0m tall × 2.0m wide
Flowers
🌸 may,jun
Wildlife
🐝 Bee magnet
Compare Prices
Prices from 3 retailers
Prices last checked: 15 Oct 2026
Prices exclude delivery. Check retailer for final price.
Retailers shown in order of price — lowest first within each pot size. Packs are compared only with packs of the same size. Listings without a stated pot size are not ranked.
| Burncoose Nurseries £9.99 standard delivery | £16.50Checked 27 Oct | Check retailer for size | View at Burncoose NurseriesOpens product page · Affiliate info |
| Frank P Matthews | £80.00Checked 17 Oct | Check retailer for size | View at Frank P MatthewsOpens product page · Affiliate info |
| Paramount Plants Variable by postcode — calculated at checkout. Free to EN postcodes | £84.00Checked 15 Oct | Check retailer for size | View at Paramount PlantsOpens product page · Affiliate info |
Burncoose Nurseries
£9.99 standard delivery
Size: Check retailer for size
Frank P Matthews
Size: Check retailer for size
Paramount Plants
Variable by postcode — calculated at checkout. Free to EN postcodes
Size: Check retailer for size
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: 15 Oct 2026
We may earn commission from purchases made through our links. (What does this mean?)
The month's biggest price drops across UK nurseries
One email a month. The plants that got cheaper, and where. Unsubscribe anytime.
We only email you price drops and seasonal savings. No spam, ever.
Plant Information
About this plant
California Lilac Trewithen Blue is a drought-tolerant flowering shrub reaching about 2m tall. Produces flowers from May and June. A favourite with bees and other pollinators.
Latin Name
Ceanothus 'Trewithen Blue'
Family
Hardiness Zone
H4
Care Level
moderate
Sun Exposure
full-sun
Water Needs
low
Flowering Season
may,jun
Mature Height
2.0m
Frequently Asked Questions
Where can I buy California Lilac Trewithen Blue online in the UK?
You can buy California Lilac Trewithen Blue from 3 UK nurseries including Burncoose Nurseries, Frank P Matthews, Paramount Plants. ComparePlants.uk compares prices across all of them so you can find the best deal.
What is the scientific name for California Lilac Trewithen Blue?
The scientific name for California Lilac Trewithen Blue is Ceanothus 'Trewithen Blue'.
Related reading
How to Support Wildlife in October
October in the UK garden is a pivotal time to support wildlife, with specific plants and small actions making a big difference for birds, pollinators, amphibians, and hedgehogs.
Read the guide →How to Support Wildlife in September
September's the perfect time to support garden wildlife with nectar-rich plants like echinacea and buddleja, keeping our gardens buzzing with life even as summer fades.
Read the guide →Similar Plants
