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Grow a bright mixture of semi-double and double Unwins dahlias on compact plants for sunny beds and containers. Choose 2 g or 20 g of raw seed for a cheerful first-season bedding display.
Ready to grow a colourful Unwins bedding display? Follow our step-by-step South African seed-grown Dahlia Grow Guide for Unwins Bedding Mix for sowing, germination, transplanting and regional care.
Quick Grow Facts
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Plant type: Tender, seed-grown bedding dahlia; grown as a warm-season annual, with first-season tubers possible
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Scientific name: Dahlia variabilis (horticultural trade name)
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Seed form: Raw; current variants are 2 g and 20 g
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Sow time: Packet: spring / summer; start in trays 6–8 weeks before the safe planting date
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Position: Full sun; use light afternoon protection only in extreme reflected heat
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Sow depth: Packet: 4 mm
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Germination warmth: About 20–21°C is the recognised general dahlia-seed optimum; no exact Unwins breeder temperature is verified
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Germination: Packet: 7–14 days
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Moisture: Keep evenly moist through emergence, never waterlogged; give bright light and airflow afterwards
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Transplant: Pot on at 1–2 true-leaf pairs; harden for 7–10 days; plant after frost
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Spacing: Packet: 30 × 30 cm
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Size and growth form: Compact bedding strain; current listing gives 35–45 cm high, but no current breeder sheet is verified
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Pinching and support: Routine pinching and staking are not needed; pinch once only if a young plant is lanky
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Flower outcome: A bright mixture of semi-double and double bedding flowers; exact days to flower are not verified
Growing Notes
Sow one raw seed per clean module, cover to 4 mm and keep the mix evenly moist at about 20–21°C. Once seedlings emerge, provide bright light and gentle airflow. Plant at the same depth as the plug into fertile, free-draining soil after frost. Water during hot dry weather, avoid prolonged leaf wetness in humid areas and deadhead regularly.
Supplier hold: the historic Unwins Ideal/Bedding name is well established, but no current breeder technical sheet or lot-to-breeder identity is verified for this packet. The packet controls depth, spacing and germination.
Ubuntuberg Seeds was founded by a horticulturist to provide high-quality horticultural seed to gardeners and professional growers throughout Southern Africa.
