Overview
Delphinium 'Sungleam' is a columnar upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with deciduous foliage. It typically grows around 1.5-2.5 metres tall and 0.5-1 metres wide, reaching full size in around 2-5 years. Delphinium 'Sungleam' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include beds, borders and cut flowers.
About
Delphinium 'Sungleam' is a herbaceous perennial cultivar of the Delphinium genus, known for its columnar upright habit. It grows to a height of 1.5 to 2.5 metres with a spread of 0.5 to 1 metre, reaching full height within 2 to 5 years. This deciduous plant thrives in full sun and prefers a sheltered position with south, west, or east-facing aspects. It grows well in chalk, loam, or sand soils that are moist but well-drained or well-drained, and it flowers during the summer and autumn seasons.
About the genus
Delphinium is a genus of about 300 species of annual and perennial flowering plants in the family Ranunculaceae, native throughout the Northern Hemisphere and also on the high mountains of tropical Africa. The genus was erected by Carl Linnaeus.
Wikipedia contributors, "Delphinium", CC BY-SA 4.0 — Delphinium
Growing conditions
Best soil and position for Delphinium
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Delphinium 'Sungleam' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Columnar upright
- Foliage
- Deciduous
- Height
- 1.5-2.5 metres
- Spread
- 0.5-1 metres
- Time to full height
- 2-5 years
- Suggested uses
- Beds, borders, cut flowers
Care notes
Pruning and caring for Delphinium 'Sungleam'
- Propagation
- Seeds, division
- Pest resistance
- Slugs
- Disease resistance
- Powdery mildew
Frequently asked questions
Where is the best place to plant Delphinium 'Sungleam'?
Delphinium 'Sungleam' prefers full sun. It suits sheltered positions.
What soil does Delphinium 'Sungleam' need?
Delphinium 'Sungleam' is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.
How big does Delphinium 'Sungleam' grow?
Delphinium 'Sungleam' reaches a height of 1.5-2.5 metres and a spread of 0.5-1 metres. It takes around 2-5 years to reach full size.
Is Delphinium 'Sungleam' hardy in the UK?
Delphinium 'Sungleam' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Delphinium 'Sungleam'?
Seeds, division.
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More in the Delphinium genus
- Delphinium 'Nora Ferguson'Larkspur
- Delphinium Hybrids, BelladonnaLarkspur
- Delphinium cardinalecardinal larkspur
- Delphinium cheilanthumgarland larkspur
- Delphinium elatumalpine delphinium
- Delphinium grandiflorumlarge-flowered delphinium
- Delphinium grandiflorum 'Azure Fairy'Larkspur
- Delphinium grandiflorum 'Blue Butterfly'delphinium 'Blue Butterfly'
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