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Knautia arvensis (Field scabious)
1 hour care
per year
per year
1m
Max height
Max height
0.4m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Knautia arvensis
Other names
Field scabious, Blue buttons
Genus
Knautia Knautia
Species
K. arvensis - K. arvensis is a clump-forming, deeply tap-rooted herbaceous perennial with erect to lax, bristly stems, hairy pinnate or simple, dull green leaves and, from midsummer to early autumn, flat-topped, lilac-blue flowerheads with softly-bristly bracts.
Knautia arvensis is: Deciduous
Habit
Upright, Spreading
Flower
Lilac, Pale-blue in Summer
Foliage
Green in Summer
How to care
Watch out for
Specific pests
Aphids Aphids
Diseases
Generally disease free.
General care
Pruning
Remove faded flower stems.
Propagation methods
Basal cuttings, Division, Seed
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Where to grow
Knautia arvensis (Field scabious) will reach a height of 1m and a spread of 0.4m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Flower Arranging, Gravel, Prairie planting, Wildlife
Cultivation
Plant in a moderately fertile, well-drained, preferably alkaline soil in full sun.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, 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
Knautia arvensis
Other names
Field scabious, Blue buttons
Genus
Knautia Knautia
Species
K. arvensis - K. arvensis is a clump-forming, deeply tap-rooted herbaceous perennial with erect to lax, bristly stems, hairy pinnate or simple, dull green leaves and, from midsummer to early autumn, flat-topped, lilac-blue flowerheads with softly-bristly bracts.
Foliage
Deciduous
Habit
Upright, Spreading
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Colour
Flower
Lilac, Pale-blue in Summer
Foliage
Green in Summer
How to care
Watch out for
Specific pests
Diseases
Generally disease free.
General care
Pruning
Remove faded flower stems.
Propagation methods
Basal cuttings, Division, Seed
Monthly care advice
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Where to grow
Knautia arvensis (Field scabious) will reach a height of 1m and a spread of 0.4m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Flower Arranging, Gravel, Prairie planting, Wildlife
Cultivation
Plant in a moderately fertile, well-drained, preferably alkaline soil in full sun.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6
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, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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Knautia arvensis
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