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Knautia arvensis (Field scabious)

Skill rating
skill rating
Maintenance level
1 hour care
per year
Ultimate height
Max height
Ultimate spread
Max spread
Time to maturity
2-5 years
To maturity

Botanical name: Knautia arvensis

Other names: Field scabious, Blue buttons

Genus: 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

Flower: Lilac, Pale-blue in Summer

Foliage: Green in Summer

Habit: Upright, Spreading

Watch out for

Specific pests: Aphids

Diseases: Generally disease free.

General care

Pruning: Remove faded flower stems.. REGISTER to

Propagation methods: Basal cuttings, Division, Seed. REGISTER to

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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: Alkaline, Neutral, Acid

Light: Full Sun

Aspect: South, West

Exposure: Exposed, Sheltered

Hardiness: Hardy (H4)

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This plant likes... Garden match
Soil types: Chalky, Loamy, Sandy Tell us...
Soil drainage: Well-drained Tell us...
Soil pH: Alkaline, Neutral, Acid Tell us...
Light: Full Sun Tell us...
Aspect: South, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...


Knautia arvensis

Scabious is clump-forming and has spear-shaped basal leaves that...
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