Overview
Delphinium 'Polar Sensation' (Highlander Series) (d) is a clump-forming, upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with divided green leaves foliage. Delphinium 'Polar Sensation' (Highlander Series) (d) grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include beds, borders and cut flowers.
About
Delphinium 'Polar Sensation' (Highlander Series) is a herbaceous perennial cultivar within the Delphinium genus, known for its clump-forming, upright habit and divided green leaves. Like others in its genus, it produces prominent, bowl-shaped flowers arranged in spikes, making it suitable for beds, borders, and cut flowers. It thrives best in fertile, moist but well-drained loam soil with a neutral pH, in full sun and sheltered positions facing south, west, or east. This cultivar is hardy to UK zone H5 and benefits from staking and mulching in spring, with propagation by basal cuttings in early spring.
Growing conditions
Best soil and position for Delphinium
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Delphinium 'Polar Sensation' (Highlander Series) (d) size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump-forming, upright
- Foliage
- Divided green leaves
- Suggested uses
- Beds, borders, cut flowers
Care notes
Pruning and caring for Delphinium 'Polar Sensation' (Highlander Series) (d)
- Propagation
- Basal cuttings in early spring
- Pest resistance
- Aphids, earwigs, delphinium leaf miner, delphinium moth caterpillars, slugs, snails, caterpillars
- Disease resistance
- Powdery mildews, delphinium black blotch, crown rot, viruses
Frequently asked questions
Where is the best place to plant Delphinium 'Polar Sensation' (Highlander Series) (d)?
Delphinium 'Polar Sensation' (Highlander Series) (d) prefers full sun. It suits sheltered positions.
What soil does Delphinium 'Polar Sensation' (Highlander Series) (d) need?
Delphinium 'Polar Sensation' (Highlander Series) (d) grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Delphinium 'Polar Sensation' (Highlander Series) (d) hardy in the UK?
Delphinium 'Polar Sensation' (Highlander Series) (d) 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 'Polar Sensation' (Highlander Series) (d)?
Basal cuttings in early spring.
More in the Delphinium genus
- Delphinium 'Blue Bell'

- Delphinium 'Ailsa'
- Delphinium 'Alison Claire'
- Delphinium 'Ambrose Woods'
- Delphinium 'Angela Rowe'
- Delphinium 'Ann Woodfield'
- Delphinium 'Anne Page'
- Delphinium 'Ariel Blue'