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
'Lava Glow'
Dahlia 'Lava Glow' brings a warm, glowing presence to the summer border, offering exuberant colour with a surprisingly refined touch. Its generously sized, semi-double blooms open in luminous peachy-orange tones softly brushed with pink, while the richly textured, anemone-style centre glows with apricot and gold, giving each flower remarkable depth and movement. As the season progresses, Dahlia 'Lava Glow' only becomes more expressive, the flamboyant, fluttering petals dancing above fresh green foliage and slender, dark stems. 'Lava Glow' is a dahlia variety that commands attention without overwhelming its neighbours, lending itself beautifully to contemporary planting schemes as well as more relaxed, painterly borders.
The open form of Dahlia 'Lava Glow' makes it particularly attractive to pollinators, adding life and gentle motion to the garden. Reaching a modest, well-balanced height, Dahlia 'Lava Glow' is ideal for the middle of mixed borders and excels in cutting gardens, where its long-lasting blooms bring drama and warmth indoors. In fertile, well-drained soil and full sun, Dahlia 'Lava Glow' rewards regular feeding and deadheading with a long flowering season from midsummer well into autumn. Among anemone-flowered dahlias, it truly stands apart—its exceptionally large, extravagant blooms and extraordinary colouring placing it firmly in a class of its own.
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 'Lava Glow' (Anem)
- Dahlia division
- Anemone-flowered dahlia (Div 2)
- Flower colour
- Orange, salmon, pink, peach
- 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
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
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