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Delphinium grandiflorum 'Blue Butterfly' (Delphinium 'Blue Butterfly')

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Skill rating Beginner
skill rating
Ultimate spread 0.3m
max. spread
Ultimate height 0.5m
max. height
Time to maturity 2-5 years
to maturity
Maintenance level 2 hours care
per year
Toxic - All parts of the plant may cause severe discomfort if ingested. Contact with sap may cause skin irritation. This plant
is toxic!

Botanical name: Delphinium grandiflorum 'Blue Butterfly'

Other names: Delphinium 'Blue Butterfly', Delphinium chinense 'Blue Butterfly'


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Genus: Delphinium

Variety or cultivar: 'Blue Butterfly' _ 'Blue Butterfly' is a compact, short-lived perennial with deeply segmented leaves and panicles of cap-shaped, bright blue flowers in summer.

Delphinium grandiflorum 'Blue Butterfly' is: Deciduous

Flower: Blue in Summer

Foliage: Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn

Habit: Clump-forming, Compact, Erect

Toxicity: All parts of the plant may cause severe discomfort if ingested. Contact with sap may cause skin irritation.

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Watch out for

Specific pests: Caterpillars , Slugs , Snails , Leaf-mining sawflies

Specific diseases: Black blotch of Delphinium , Crown rot , Powdery mildew

General care

Pruning: Deadhead by cutting spent flower spikes back to small flowering side shoots. Cut down all growth to ground level after it has withered in autumn.. REGISTER to read more...

Propagation: Divide every 3-4 years to maintain vigour.. REGISTER to read more...

Propagation methods: Basal cuttings, Division. REGISTER to read more...


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Delphinium grandiflorum 'Blue Butterfly' (Delphinium 'Blue Butterfly') will reach a height of 0.5m and a spread of 0.3m after 2-5 years.


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Suggested uses: Cottage/Informal, Flower Arranging, Beds and borders

Cultivation: Plant in a fertile, well-drained soil in full sun. Apply a fortnightly balanced liquid feed during the growing season. May be short-lived in hot, humid conditions. Cut back if becomes infected with powdery mildew. Stake with bamboo canes in mid-sp

Suitable for your garden?
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This plant likes... Garden match
Soil types: Chalky, Loamy, Sandy Match unknown
Soil drainage: Well-drained, Moist but well-drained Match unknown
Soil pH: Acid, Alkaline, Neutral Match unknown
Light: Partial Shade, Full Sun Match unknown
Aspect: South, West Match unknown
Exposure: Exposed, Sheltered Match unknown
Hardiness: Hardy (H4) Match unknown

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We list 4 suppliers who tell us they sell Delphinium grandiflorum 'Blue Butterfly' (Delphinium 'Blue Butterfly'). In order to see the list you'll need to either register or log in as a full member.


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Gardens with this plant

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claire's garden
claire collins

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