Thompson & Morgan

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Larkspur 'Gentian Blue'

Delphinium grandiflorum, Delphinium chinense, Siberian Larkspur

Hardy Annual

A clear, fresh Gentian blue which is perfect for bedding, borders and containers. This impressive annual Delphinium, also known as Siberian Larkspur, boasts a stunning colour which is breathtaking and essential for any garden.

Ideal For:
patio, cottage gardens
Flowering Period:
June, July, August
Sowing Months:
April, May, September, October
Position:
full sun
    • 1 packet (100 seeds)

    •  
    • Despatch: By end of April 2014
    • £2.39
Sow April to May or September to October. Sow outdoors where they are to flower. Prepare the ground well and rake to a fine tilth before sowing. Sow 3mm (1/8in) deep, in rows 30cm (12in) apart.Alternatively, sow in late summer in 7.5cm (3in) pots in a cool greenhouse and then overwinter plants in cool, well lit conditions. Plant out the following spring after all risk of frost, 30cm (12in) apart in full sun.

When large enough to handle, thin out seedlings to 23cm (9in) apart.

Prefers a light, well drained soil in full sun.

Caution: harmful if eaten

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 and will be stated on the product page or in your order acknowledgement page and email.


Orders for packets of seed incur a P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.


Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.

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