Romneya coulteri 'White Cloud'
California Tree poppy, Matilija poppy, White bush poppy
Also known as Romneya x hybrida 'White Cloud', Romneya x hybrida
- Height × spread
- 1.5m × 3m
- Position
- Full sun
- Hardiness
- Cold to -15C (RHS H5)
- Flowers
- Summer, Autumn
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This vigorous tree poppy produces large, white, papery flowers that carry a pleasing fragrance and have an enormous golden centre. It is a slow and difficult plant to establish, but once it gets going it can become invasive. It is a lovely plant to give away! It has hearty blue-grey foliage.
- Flower colour
- White
- Foliage colour
- Grey
- Autumn foliage
- Yellow
- Variegated
- No
- Scent
- Yes, sweet
- Shape
- Dome
- Height
- 1.5m
- Spread
- 3m
- Season of interest
- Summer
- Flowers in
- Summer, Autumn
- Evergreen
- Deciduous
- Garden style
- Seaside garden, Scented garden, Mediterranean garden, Gravel garden, Exotic garden
- Sun or shade
- Likes full sun
- Soil type
- Loam (normal), Sandy soil
- Soil pH
- All types
- Drainage
- Well drained soil, Dry soil, Drought resistant
- Hardiness
- Cold to -15C (RHS H5)
- Borders & containers
- Borders
- Use for
- Structural, Bee attraction
- Hazards
- No
- Pet safe
- Yes – listed in our pet-safe plants
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Outdoors
Water in dry periods
Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.
Spring - early · Planting
Prune hard to the base
Prune back to within 30cm to 45cm of the plant base so that the year's growth will begin from this low framework. If you want the plant to grow larger, this need only be done every few years.
Planting & general
Outdoor planting · Planting
Add root growth stimulant to the planting hole
Mycorrhizal fungi helps roots establish quickly, so they absorb water and nutrients more efficiently. It comes as a powder, granule or gel. Add to the planting hole or container, and to the plant's rootball before planting in the hole. For "bareroot" plants use a gel.