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Iris graminea (Grass-leaved iris)
1 hour care
per year
per year
0.4m
Max height
Max height
0.3m
Max spread
Max spread
2-5 years
To maturity
To maturity
Low
Toxicity
Toxicity
Plant details
Botanical name
Iris graminea
Other names
Grass-leaved iris, Grass-leaved flag, Plum-scented iris, Iris colchica
Genus
Iris Iris
Species
I. graminea - I. graminea is a clump-forming, rhizomatous perennial with linear, flat, bright green leaves and fragrant, reddish-purple flowers with veined, white-tipped falls.
Iris graminea is: Deciduous
Habit
Clump-forming, Erect flower stem
Toxicity
Ingestion may cause severe discomfort.
Awards
RHS AGM (Award of Garden Merit)
Flower
Reddish-purple in Spring; Reddish-purple in Summer
Foliage
Bright-green in Spring; Bright-green in Summer; Bright-green in Autumn
How to care
Watch out for
Specific pests
Diseases
Generally disease-free.
Grey mould Grey mould
General care
Pruning
Cut back any dying leaves in autumn. Old flower stems can be cut down after flowering.
Propagation
Divide in spring or late summer. Sow seed as soon as ripe and overwinter in a cold frame.
Propagation methods
Division, Seed
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Where to grow
Iris graminea (Grass-leaved iris) will reach a height of 0.4m and a spread of 0.3m after 2-5 years.
Suggested uses
Beds and borders, City, Cottage/Informal, Flower Arranging
Cultivation
Grow in neutral to slightly acid, moist but well-drained soil in full sun or partial shade. Feed in early spring and after flowers open. Tolerates moderate drought once mature. Best to leave undisturbed once established.
Soil type
Clay, Loamy, Sandy
Soil drainage
Moist but well-drained
Soil pH
Acid, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Exposed, 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
Iris graminea
Other names
Grass-leaved iris, Grass-leaved flag, Plum-scented iris, Iris colchica
Genus
Iris Iris
Species
I. graminea - I. graminea is a clump-forming, rhizomatous perennial with linear, flat, bright green leaves and fragrant, reddish-purple flowers with veined, white-tipped falls.
Native to
Central Europe, Southern Europe
Foliage
Deciduous
Habit
Clump-forming, Erect flower stem
Toxicity
Ingestion may cause severe discomfort.
Awards
RHS AGM (Award of Garden Merit)
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Colour
Flower
Reddish-purple in Spring; Reddish-purple in Summer
Foliage
Bright-green in Spring; Bright-green in Summer; Bright-green in Autumn
How to care
Watch out for
Specific pests
Diseases
Generally disease-free.
Specific diseases
General care
Pruning
Cut back any dying leaves in autumn. Old flower stems can be cut down after flowering.
Propagation
Divide in spring or late summer. Sow seed as soon as ripe and overwinter in a cold frame.
Propagation methods
Division, Seed
Monthly care advice
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Where to grow
Iris graminea (Grass-leaved iris) will reach a height of 0.4m and a spread of 0.3m after 2-5 years.
Suggested uses
Beds and borders, City, Cottage/Informal, Flower Arranging
Cultivation
Grow in neutral to slightly acid, moist but well-drained soil in full sun or partial shade. Feed in early spring and after flowers open. Tolerates moderate drought once mature. Best to leave undisturbed once established.
Soil type
Clay, Loamy, Sandy
Soil drainage
Moist but well-drained
Soil pH
Acid, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 8, Zone 7, Zone 6, Zone 5
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Clay, Loamy, Sandy | Tell us... |
| Soil drainage: | Moist but well-drained | Tell us... |
| Soil pH: | Acid, Neutral | Tell us... |
| Light: | Partial Shade, Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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