DELPHINIUM
All flower MAY-JUN
Another old cottage-garden favourite. To get the best display requires some fussing over. Greedy feeders and loved by slugs. Taller varieties need staking. Results can be spectacular.
Genus of about 320 species of annuals, biennials and perennials found mainly in mountainous areas worldwide, except Australia.
Main delphinium, or larkspur, cultivars are classed into Belladonna, Elatum or Pacific Hybrid groups
Plant Details
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Floweringlocal_floristJanlocal_floristFeblocal_floristMarlocal_floristAprlocal_floristMaylocal_floristJunlocal_floristJullocal_floristAuglocal_floristSeplocal_floristOctlocal_floristNovlocal_floristDec
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Good to knowElatum Group
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Pests & DiseasesSlugs, snails, leaf miners, delphinium moth caterpillars, leaf blotch, powdery mildew, crown rot
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Place of originGarden origin
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Bicolor
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Blue
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Shades of pinkAll shades of pink through to Carmine (red)
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DoubleMulti rows of petals, no stamen showing6cm (2½in) or more across
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Fully hardy
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Height1.2m (4ft)
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Spread60cm (24in)
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HerbaceousEarly in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.Clump-forming perennial.
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Hardy - cold winterHardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F)
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Summer Seasonal Interest
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harmful if eaten(People & Pets)
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Mature Size1.2m (4ft)
60cm (24in)
Planting Tips and Care Advice
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Soil Conditions
Fertile well drained soil
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Sun Requirements
Full sunShelter from strong winds
Delphinium - Care Guide
Herbaceous Plants - Video Collection
- Dividing Herbaceous Perennials - Video Tip ondemand_video
- Spring Planting Osteospermums - Video Tip ondemand_video
- Dividing Summer Perennials - Video Tip ondemand_video
- Dividing summer flowering Hemerocallis - Video Tip ondemand_video
- Summer propagation - Video Tip ondemand_video
- Self-seeding aquilegia - Video Tip ondemand_video
- Supporting Plants - Video Tip ondemand_video
- Dead heading meconopsis - Video Tip ondemand_video
- Dead heading Delphiniums - Video Tip ondemand_video
- Feeding herbaceous peonies - Video Tip ondemand_video
- Overpotting Problems - Video Tip ondemand_video