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Herbaceous Perennial
Columnar/Upright
All parts may cause severe discomfort if ingested and may irritate skin
old H4 (hardy)
Pale Brown and Pale Purple in Summer
Green in Autumn, Spring and Summer
1.5-2.5 metres
0.5-1 metres
2-5 years
delphinium 'Emily Hawkins'
Ranunculaceae
Delphinium can be annuals, biennials or perennials, with palmately lobed basal leaves and showy bowl-shaped flowers in spikes, racemes or panicles
'Emily Hawkins' is a tall herbaceous perennial to 2.2m, with divided foliage and light, lilac-mauve flowers, with pale brown eyes, in racemes to 75cm in length
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Grow in a fertile, well-drained soil in full sun; shelter from strong winds and stake well. Apply a balanced liquid every couple of weeks in the growing season. For the best flower spikes thin shoots when 7cm high to leave a minimum of 2-3 shoots on young plants and 5-7 shoots on established plants
Propagate by taking pencil thick basal cuttings in early spring
City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds or Cut Flowers
Deadhead by cutting spent flower spikes back to small flowering side shoots. Cut down all growth to ground level after it has withered in autumn
May be attacked by slugs, snails, leaf miners and caterpillars
May be subject to powdery mildews, delphinium black blotch, crown rot and a virus
© The Royal Horticultural Society 2011 / RHS Registered Charity № 222879/SC038262