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Linum grandiflorum 'Rubrum' (Crimson-flowered flax )
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1 hour care
per year
per year
0.45m
Max height
Max height
0.3m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Linum grandiflorum 'Rubrum'
Other names
Crimson-flowered flax , Flax 'Rubrum', Flowering flax 'Rubrum'
Genus
Linum Linum
Variety or Cultivar
'Rubrum' _ 'Rubrum' is an erect, branching, slightly hairy annual with narrowly ovate to narrowly lance-shaped, grey-green leaves and saucer-shaped, crimson flowers from early summer into autumn.
Linum grandiflorum 'Rubrum' is: Deciduous
Habit
Erect
Flower
Crimson in Summer; Crimson in Autumn
Foliage
Grey-green in Spring
How to care
Watch out for
Pests
Unknown
Diseases
Unknown
General care
Propagation
Sow seed in situ in spring or in late summer/early autumn. For early spring flowering, start in late summer or early autumn in a cool greenhouse.
Propagation methods
Seed
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Where to grow
Linum grandiflorum 'Rubrum' (Crimson-flowered flax ) will reach a height of 0.45m and a spread of 0.3m after 2-5 years.
Suggested uses
Beds and borders, City, Cottage/Informal, Gravel, Low Maintenance
Cultivation
Grow in moderately fertile, well-drained soil in sun.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Linum grandiflorum 'Rubrum'
Other names
Crimson-flowered flax , Flax 'Rubrum', Flowering flax 'Rubrum'
Genus
Linum Linum
Variety or Cultivar
'Rubrum' _ 'Rubrum' is an erect, branching, slightly hairy annual with narrowly ovate to narrowly lance-shaped, grey-green leaves and saucer-shaped, crimson flowers from early summer into autumn.
Foliage
Deciduous
Habit
Erect
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Colour
Flower
Crimson in Summer; Crimson in Autumn
Foliage
Grey-green in Spring
How to care
Watch out for
Pests
Unknown
Diseases
Unknown
General care
Propagation
Sow seed in situ in spring or in late summer/early autumn. For early spring flowering, start in late summer or early autumn in a cool greenhouse.
Propagation methods
Seed
Monthly care advice
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Where to grow
Linum grandiflorum 'Rubrum' (Crimson-flowered flax ) will reach a height of 0.45m and a spread of 0.3m after 2-5 years.
Suggested uses
Beds and borders, City, Cottage/Informal, Gravel, Low Maintenance
Cultivation
Grow in moderately fertile, well-drained soil in sun.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3
Defra's Risk register #1
Plant name
Linum grandiflorum 'Rubrum' (Crimson-flowered flax )
Common pest name
grape ground pearl
Scientific pest name
Margarodes vitis
Type
Insect
Current status in UK
Absent
Likelihood to spread to UK (1 is very low - 5 is very high)
2
Impact (1 is very low - 5 is very high)
5
General biosecurity comments
Main pathway; Vitis spp. plants for planting; already prohibited. However; further consideration of other pathways is required.
About this section
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
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, Loamy, Sandy | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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