Romneya coulteri (California Tree Poppy) - 30 seeds. Magnificent shrub with silver-grey leaves and gorgeous, fragrant, pure white flowers.

Sold by RPSeeds
Get Shipping Estimate

Only 1 available

In stock
Ships next business day
Arrives from United Kingdom
Returns and exchanges accepted
See this seller's return policy

Made in Lytham, United Kingdom

Item details

Magnificent, tall, sub-shrub with leathery, silver-grey leaves and gorgeous, fragrant, pure white flowers, 12cm or more across, with golden-tasseled centres. Flowers from late summer onwards just when many plants are beginning to fade. Hardy in all but very cold areas and will flourish in pots.

Winner of the RHS Award of Garden Merit

Hardy Shrub (to -5C)
Flowers: Late summer to early autumn
Height: up to 2m
Position: Full sun

Packet of 30 seeds

Our seeds are hand packed in our unique, reusable, paper packets and a detailed growing guide is supplied to help you get the best from your seeds.


These seeds have a double dormancy which needs to be broken before they will germinate, ie. they need to go through a process which simulates the changing seasons.

Pre-sowing Treatment: Wash the seeds briefly with white spirit, then rinse with warm water.

Sowing Instructions: Sow at any time of year, very thinly in pots of an equal mix of sand & peat-based seed compost eg. Levington. Sow on the surface and do not cover seed as light is beneficial to germination and seal inside a polythene bag. Maintain an optimum temperature of 16-20C for 20 weeks, then place the container(s) in the fridge for a further 30 weeks. Then, return to 16-20C and germination should take place. Throughout this process check regularly and ensure the compost does not dry out. Note: Germination can be very erratic, so sow thinly and prick out the seedlings as they become large enough to handle disturbing the rest of the compost as little as possible.

Alternatively, sow as above, and place in a cold frame or sheltered part of the garden and let nature take its course as the seasons change. I would recommend this method for greater success and much less hassle!

Growing Instructions: Transplant seedlings when large enough to handle into 7.5cm pots taking great care not to damage the roots. Grow on at the same temperature for 3-4 months until well-rooted, then move to a coldframe for over-wintering. Plant out the following spring in a sheltered sunny site, 1.2-2m apart.

No reviews yet

Shipping & policies
Ships next business day
Arrives from United Kingdom
Estimated Shipping
Shipping to
Zip or postal code
Estimated shipping times
Europe 1-2 business days
I'll do my best to meet these shipping estimates, but cannot guarantee them. Actual delivery time will depend on the shipping method you choose.
Customs and import taxes
Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

Secure options
Etsy Studio keeps your payment information secure. Etsy Studio shops never receive your credit card information.

Returns & exchanges
I gladly accept returns, exchanges, and cancellations
Contact me within: 14 days of delivery
Ship items back within: 30 days of delivery
Request a cancellation: before item has shipped
The following items can't be returned or exchanged
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
  • Custom or personalized orders
  • Perishable products (like food or flowers)
  • Digital downloads
  • Intimate items (for health/hygiene reasons)
Conditions of return
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.
Questions about your order?
Please contact me if you have any problems with your order.