Delphinium ithaburense
Delphinium fissum subsp. ithaburense, Delphinium salmoneum, Blue larkspur
Delphinium Delphinium
D. ithaburense - D. ithaburense is a rosette-forming perennial with purple-flushed, dark green leaves divided into five lobed leaflets and erect stems bearing spikes of hairy, long-spurred, elf-cap-shaped, pale pink, cream, or pale blue flowers in summer.
Delphinium ithaburense is: Deciduous
Rosette, Erect flower stem
All parts of the plant are highly toxic and usually fatal if ingested. Contact with sap may cause skin irritation.
Pale-pink in Summer
Flushed purple, Dark-green in Spring; Dark-green, Flushed purple in Summer; Flushed purple, Dark-green in Autumn
Caterpillars , Slugs , Snails , Leaf-mining sawflies Caterpillars , Slugs , Snails , Leaf-mining sawflies
Black blotch of Delphinium , Crown rot , Powdery mildew Black blotch of Delphinium , Crown rot , Powdery mildew
Deadhead by cutting spent flower spikes back to small flowering side shoots. Cut back to ground level after foliage has died back in autumn.
Sow seed in a cold frame in spring.
Seed
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Delphinium ithaburense (Blue larkspur) will reach a height of 0.6m and a spread of 0.3m after 2-5 years.
Flower Arranging, Cottage/Informal, Beds and borders
Grow in a fertile, well-drained, neutral to alkaline soil in a sheltered, sunny site. Does not tolerate wet winter conditions. May inhibit the growth of nearby plants.
Chalky, Loamy, Sandy
Well-drained, Moist but well-drained
Alkaline, Neutral
Partial Shade, Full Sun
South, West
Exposed, Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Delphinium ithaburense
Delphinium fissum subsp. ithaburense, Delphinium salmoneum, Blue larkspur
Delphinium Delphinium
D. ithaburense - D. ithaburense is a rosette-forming perennial with purple-flushed, dark green leaves divided into five lobed leaflets and erect stems bearing spikes of hairy, long-spurred, elf-cap-shaped, pale pink, cream, or pale blue flowers in summer.
Deciduous
Rosette, Erect flower stem
All parts of the plant are highly toxic and usually fatal if ingested. Contact with sap may cause skin irritation.
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Pale-pink in Summer
Flushed purple, Dark-green in Spring; Dark-green, Flushed purple in Summer; Flushed purple, Dark-green in Autumn
Caterpillars , Slugs , Snails , Leaf-mining sawflies
Black blotch of Delphinium , Crown rot , Powdery mildew
Deadhead by cutting spent flower spikes back to small flowering side shoots. Cut back to ground level after foliage has died back in autumn.
Sow seed in a cold frame in spring.
Seed
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Delphinium ithaburense (Blue larkspur) will reach a height of 0.6m and a spread of 0.3m after 2-5 years.
Flower Arranging, Cottage/Informal, Beds and borders
Grow in a fertile, well-drained, neutral to alkaline soil in a sheltered, sunny site. Does not tolerate wet winter conditions. May inhibit the growth of nearby plants.
Chalky, Loamy, Sandy
Well-drained, Moist but well-drained
Alkaline, Neutral
Partial Shade, Full Sun
South, West
Exposed, Sheltered
Hardy (H4)
Zone 9, Zone 8, Zone 7
Delphinium ithaburense (Blue larkspur)
Phytophthora tentaculata Kröber & Marwitz - All Hosts
Oomycete
Absent
5
3
Polyphagous pathogen present in parts of Europe and beyond.
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
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This plant likes... | Garden match | |
Soil types: | Chalky, Loamy, Sandy | Tell us... |
Soil drainage: | Well-drained, Moist but well-drained | Tell us... |
Soil pH: | Alkaline, Neutral | Tell us... |
Light: | Partial Shade, Full Sun | Tell us... |
Aspect: | South, West | Tell us... |
Exposure: | Exposed, Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
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