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Sunflower 'Colossus' (Seeds)Helianthus annuus

Just £0.79

Hardy Annual
What is Hardy Annual?
A plant that completes its entire life cycle (growth, reproduction, death) in one season.
Capable of withstanding outdoor winter temperatures down to -15C.
6 Reviews
1 packet (20 sunflower seeds)Save £1.20 £1.99 £0.79 Out of Stock
Description How to Grow Delivery Reviews
The giant of all sunflowers. Huge yellow flowers will appear from late summer and birds will enjoy feasting on the seeds during autumn. Height: 304cm (120"). Spread: 60cm (24").

Culinary information: Some parts of these flowers are edible. Try toasting the seed kernels for a healthy snack. For more details about edible flowers click here.


Cut Flower Garden, Wildlife Gardens, Cottage Gardens

Hardy

full sun

304cm (120in)

60cm (24in)

1 Packet (20 Sunflower Seeds) (TKA53998)

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Sowing Months Flowering Months
  • Sow outdoors March/May where they are to flower. Prepare the ground by raking to a fine tilth before sowing.
  • Sow thinly, 12mm (1/2in) deep in drills 45cm (18in) apart. Germination usually takes around 3 weeks.
  • When large enough to handle, thin out seedlings to 45cm (18in) apart.
  • For earlier flowering sow indoors in late January/February, individually into 7.5cm (3in) pots, keep at 20-30°C (68-86F). When well grown, acclimatise to outdoor conditions before planting out after all risk of frost.

Delivery

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 or plants incur a delivery charge of £4.99.

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 details of any surcharges that may apply to certain destinations.

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

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For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.