Overview
Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series) is a clump forming herbaceous perennial in the genus Viola, part of the Violaceae family, with evergreen, semi evergreen foliage. Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series) grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden, patio and container plants, city and courtyard gardens, flower borders and beds and underplanting of roses and shrubs.
About
Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' is a clump-forming herbaceous perennial belonging to the Viola genus, known for its distinctive five-petalled flowers. This evergreen to semi-evergreen cultivar thrives in full sun or partial shade and is suitable for a variety of garden settings including cottage gardens, patios, and flower borders. It prefers fertile, moist but well-drained soil and is hardy to UK zone H5. Regular deadheading encourages prolonged flowering through spring, summer, and autumn, making it a versatile choice for underplanting roses and shrubs or enhancing city and courtyard gardens.
Growing conditions
Best soil and position for Viola
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series) size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Evergreen, Semi evergreen
- Suggested uses
- Cottage and informal garden, Patio and container plants, City and courtyard gardens, Flower borders and beds, Underplanting of roses and shrubs
Care notes
Pruning and caring for Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series)
- Propagation
- Seed sown in late winter or early spring
- Pest resistance
- Slugs, Snails, Aphids, Glasshouse red spider mite, Violet gall midge
- Disease resistance
- Powdery mildews, Pansy leaf spot, A virus, A rust
Frequently asked questions
Where is the best place to plant Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series)?
Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series) prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series) need?
Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series) is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series) hardy in the UK?
Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series) 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 Viola x wittrockiana 'Delta Premium Deep Blue With Blotch' (Delta Series)?
Seed sown in late winter or early spring.
More in the Viola genus
- Viola 'Imperial Antique Shades'
- Viola 'Ab5131'PBR
- Viola 'Alice Witter' (Vt)
- Viola 'Beatrice' (Vtta)
- Viola 'Black Knight'
- Viola 'Caroline' (Va)
- Viola 'Cinders' (Vtta)
- Viola 'Clover' (Va)