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We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
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AGM plants have been through a rigorous trial and assessment programme. They are:
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Other common names
delphinium 'Emily Hawkins'
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
Toxicity All parts may cause severe discomfort if ingested and may irritate skin
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or East-facing or West-facing
MoistureMoist but well-drained, Well-drained
SoilSand, Chalk, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
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
Suggested planting locations and garden types
Flower borders and beds Cut Flowers
City & Courtyard Gardens Cottage & Informal Garden
Pruning 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
Pests May be attacked by slugs, snails, leaf miners and caterpillars
May be subject to powdery mildews, delphinium black blotch, crown rot and a virus
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Join the RHS today and get 12 months for the price of 9