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black dahlia seeds

Dahlia ‘Black Beauty’ Dahlia variabilis

Luxurious velvety blooms

Short plants ideal for pots and front of border

The darkest dahlia youll grow!

Plant Size Height Up to 35cm (13.8in)
Spread Up to 35cm (13.8in)

Hardiness & Longevity Half-hardy Annual

Ideal For patio cottage gardens exotic garden cut flower garden

Position In Full sun

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Culinary note: All dahlia flowers and tubers are edible. The flavours and textures can vary greatly depending on the soil and conditions in which they were grown. Flavours range from water chestnut through to a spicy apple or even carrot. For more details about edible flowers click here .

Codes
1 packet (50 dahlia seeds) (25802)

Sow Dahlia seeds indoors from February to April on the surface of a good, free draining compost and lightly cover with a fine sprinkling of compost or vermiculite. Place the seed tray in a propagator at a temperature of 20-25C (68-77F) or seal inside a clear polythene bag until germination which takes 7 – 21 days. Keep the compost damp but not wet and do not exclude light as this helps germination.

When seedlings are large enough to handle, transplant into 7.5cm (3″) pots and grow Dahlia plants on in cooler conditions. When all risk of frost has passed, gradually acclimatise to outdoor conditions over 7 – 10 days before planting outdoors. Plant Dahlias at a distance of 30cm (12″) apart on any fertile, well drained soil in full sun.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £4.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.99 will apply – regardless of the number of items ordered.

Large items may incur a higher delivery charge – this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Dahlia ‘Black Beauty’ seeds from Thompson & Morgan – experts in the garden since 1855

Black dahlia seeds

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Can be started indoors in winter to be transplanted outdoors in spring…..or can be sown directly into the ground in spring after last frost. This flower is unique in that it brings a whole new look to Dahlias with its gorgeous purple/black flowers that actually appear black. Dahlias have been