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
New
Dahlia
'Bizon Purple Lady'
Dahlia 'Bizon Purple Lady' is a richly coloured, joyfully generous dahlia that feels both glamorous and quietly confident. Its fully double blooms open in layers of soft rose-purple petals brushed with deeper raspberry tones at the centre, creating flowers that look almost hand-painted. In the border, Dahlia 'Bizon Purple Lady' has a wonderfully balanced habit, producing long, strong stems that hold the flowers upright and poised, even after summer rain. It brings a sense of abundance without ever tipping into excess, making it just as suitable for refined garden schemes as for relaxed cottage planting.
As the season gathers momentum, Dahlia 'Bizon Purple Lady' settles into a long, dependable flowering rhythm, blooming freely from midsummer well into autumn. It is a natural choice for cutting, with blooms that last beautifully in a vase and mix effortlessly with grasses, cosmos and late roses. In the garden, Dahlia 'Bizon Purple Lady' pairs especially well with silvery foliage and soft purples, allowing its colour to glow rather than shout. Reliable, generous and endlessly charming, Dahlia 'Bizon Purple Lady' is the sort of plant that quickly earns its place, quietly becoming one you look forward to every year.
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 'Bizon Purple Lady'
- Flower colour
- Purple, violet, pink
- Tuber size
- 1
- Established height
- 70cm-1m
- Established spread
- 30-50cm
- Growing skill
- Easy to grow
- Habit
- Upright
- Hardiness
- Half hardy
- Leaf colour
- Green
- Mouse resistant
- No
- Plant spacing
- 5 tubers per m2
- Pollinator friendly
- No
- 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 - 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
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