Dahlias are half hardy, so keep them protected from frost. Pot tubers individually between February and April and grow them on in a greenhouse or bright indoor position. Alternatively, start them outside in May, once the risk of frost has passed.
Out of season
Dahlia
'Bishop of Dover'
Blooms as white as a chorister’s surplice contrast beautifully against dramatic, near-black foliage when Dahlia 'Bishop of Dover' comes into bloom. Even before the buds open, you’ll enjoy the wonderful foliage contrasts you can create when you plant this dahlia against a backdrop of lighter greens. But it’s undoubtedly the bloom time that is the most spectacular – and it’s a long one. Don’t hesitate to cut flowers for the vase, you’ll just stimulate your Dahlia 'Bishop of Dover' to produce even more of those attractive, cream-centred flowers.
With a little extra care, you’ll have dahlias blooming in your summer flower garden for years to come, so don’t be shy about spoiling yourself and treating your garden to some quality dahlia tubers from Farmer Gracy.
Quantity
Plant profile
Plant calendar
For planting out later, use a snug-fitting 15–20cm pot filled with peat-free multipurpose compost. For a patio display, plant directly into a container at least 30cm wide and keep it somewhere bright and frost free until it can move outdoors.
Position the old stem facing upwards, with the tubers covered and the stem stump level with the compost. Tubers naturally vary in size and shape and may arrive without visible buds. Bent necks are usually fine if they remain firmly attached, so do not remove them.
Water after planting, then allow the compost to become almost dry before watering again while the tuber remains dormant. Once shoots and leaves are growing strongly, water more regularly, always allowing excess water to drain away.
Plant out after the last frost, once the plant is around 20–30cm tall and its roots hold the compost together. Space dahlias approximately 30–50cm apart in borders, allowing less room for compact varieties. Water thoroughly after planting.
Water regularly during active growth and deadhead or cut flowers often. Dahlias usually bloom from July or August until the first frost, although later-planted tubers may start in late August or September. In autumn, lift, clean and dry the tubers, then store them somewhere cool, dry, airy and frost free.
- Botanical name
- Dahlia 'Bishop of Dover'
- Flower colour
- White
- Tuber size
- 1
- Established height
- 70cm-1m
- Established spread
- 30-50cm
- Growing skill
- Easy to grow
- Habit
- Upright
- Hardiness
- Half hardy
- Leaf colour
- Bronze
- Mouse resistant
- No
- Plant spacing
- 5 tubers per m2
- Pollinator friendly
- Yes
- Position
- Sheltered
- Rabbit resistant
- No
- Scented
- No
- Soil acidity
- Any
- Soil moisture
- Free draining
- Soil type
-
Loam
Sandy
Multipurpose compost
Loam-based compost - Suitable for
-
Large containers
Borders
Gravel gardens
Coastal gardens
Cottage gardens
Low maintenance gardens
Cut flower Gardens
Wildlife gardens - Sunlight
-
Full sun
Partial shade - Toxicity
- No report
- Years to establish
- 1st year
Good for cutting
Thrives in full sun
Perennial
Packed in paper
Low maintenance
Top-size tubers
-40%
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Fritillaria meleagris 'Mix'
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£3.72
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-40%
Tulip 'Queen of Night'
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£4.14
Sale price
£6.90
-40%
Narcissus 'Double Mixed'
Regular price
£4.50
Sale price
£7.50
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Every bulb and plant is sourced, selected and prepared with an expert eye for their quality and garden performance.
