Beginner
skill rating
Online Garden Tools
Useful videos
Phormium cookianum subsp. hookeri 'Tricolor' (Mountain flax 'Tricolor')
1 hour care
per year
per year
1.5m
Max height
Max height
2.5m
Max spread
Max spread
5-10 years
To maturity
To maturity
Plant details
Botanical name
Phormium cookianum subsp. hookeri 'Tricolor'
Other names
Mountain flax 'Tricolor', Phormium cookianum 'Tricolor'
Genus
Phormium Phormium
Variety or Cultivar
'Tricolor' _ P. cookianum subsp. hookeri 'Tricolor' is an evergreen perennial with erect, sword-shaped leaves with yellow stripes and red margins. Established plants produce large panicles of yellow-green flowers in summer.
Phormium cookianum subsp. hookeri 'Tricolor' is: Evergreen
Habit
Clump-forming
Awards
RHS AGM (Award of Garden Merit)
Flower
Yellow-green in Summer
Foliage
Green, Yellow, Striped, Red in All seasons
How to care
Watch out for
Specific pests
Phormium mealybug Phormium mealybug
Diseases
Generally disease free.
General care
Pruning
Remove spent flower stalks at the end of autumn.
Propagation methods
Division
Sign up for your FREE ACCOUNT today or login to receive detailed monthly care instructions
Where to grow
Phormium cookianum subsp. hookeri 'Tricolor' (Mountain flax 'Tricolor') will reach a height of 1.5m and a spread of 2.5m after 5-10 years.
Suggested uses
Architectural, Beds and borders, City, Coastal, Cottage/Informal, Drought Tolerant, Instant, Low Maintenance, Sub-Tropical
Cultivation
Plant in well-drained, fertile soil in full sun. In cold areas, protect from frost with a dry mulch in winter.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Well-drained, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Tender in frost (H3), Hardy (H4)
Companion plants
Botanical name
Phormium cookianum subsp. hookeri 'Tricolor'
Other names
Mountain flax 'Tricolor', Phormium cookianum 'Tricolor'
Genus
Phormium Phormium
Variety or Cultivar
'Tricolor' _ P. cookianum subsp. hookeri 'Tricolor' is an evergreen perennial with erect, sword-shaped leaves with yellow stripes and red margins. Established plants produce large panicles of yellow-green flowers in summer.
Foliage
Evergreen
Habit
Clump-forming
Awards
RHS AGM (Award of Garden Merit)
Create your free Shoot garden
Create your free SHOOT garden and make a record of the plants in your garden.
Add your own photos, notes, get monthly email reminders on how to care for your plants, and connect with other gardeners. Get started now.
Colour
Flower
Yellow-green in Summer
Foliage
Green, Yellow, Striped, Red in All seasons
How to care
Watch out for
Specific pests
Diseases
Generally disease free.
General care
Pruning
Remove spent flower stalks at the end of autumn.
Propagation methods
Division
Monthly care advice
Get access to monthly care advice
Create a free SHOOT account and get instant access to expert care advice for this and other plants in your garden.
You'll also receive handy monthly email reminders of what needs doing. Create your free account.
Where to grow
Phormium cookianum subsp. hookeri 'Tricolor' (Mountain flax 'Tricolor') will reach a height of 1.5m and a spread of 2.5m after 5-10 years.
Suggested uses
Architectural, Beds and borders, City, Coastal, Cottage/Informal, Drought Tolerant, Instant, Low Maintenance, Sub-Tropical
Cultivation
Plant in well-drained, fertile soil in full sun. In cold areas, protect from frost with a dry mulch in winter.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Well-drained, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Tender in frost (H3), Hardy (H4)
USDA zones
Zone 10, Zone 9
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
| Soil drainage: | Well-drained, Moist but well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Tender in frost (H3), Hardy (H4) | Tell us... |
COMPANION PLANTS
GARDENS WITH THIS PLANT
ARTICLES WITH THIS PLANT
By Chichester based garden designer David Loy of Your Garden Design. The garden design is modern and contemporary, consistent with the style of the house and utilising materials sympathetic to both… read more
By Blackheath based garden designer Catherine Clancy MSGD. An oasis created within the existing walled boundaries of the old garden, a contemporary design complimented by rich planting. read more
To add ? to your lists,
login to your account or subscribe.
Find out more about plant lists here
or Login
To add notes for this plant login to your account or register for a new account.
Sign up for freeor Login
To add images for this plant login to your account or register for a new account.
Sign up for freeor Login
To check if this plant is suitable for your garden first login to your account or subscribe.
or Login
DISCUSS THIS PLANT
Phormium overwatered?!
There are 0 active discussions about Phormium cookianum subsp. hookeri 'Tricolor' (Mountain flax 'Tricolor')
View all discussions