Perennial Seeds - Helianthus seeds: Mongolian Giant

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Helianthus seeds: Mongolian Giant

Fun to grow, producing flower heads up to 18 inches across with individual seeds up to 1½ inches long. As well as producing large yellow flower heads, Sunflower Mongolian Giant will be the envy of your neighbors as it grows up to 14 feet tall.

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Helianthus seeds: Mongolian Giant

8295 - 1 packet (10 seeds)

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FLOWERING PERIOD: Mid/Late Summer to Fall

SOWING TIME: March to May

SOWING DEPTH: 12 inches

SOWING: Sow seeds March to May. Sow seeds thinly, 12mm (½in) deep in drills 45cm (18in) apart in well cultivated soil raked to a fine tilth or direct into small containers. Germination takes around 21 days. For earlier flowering: Sow indoors, individually in 7.5cm (3in) pots at 20-25C (68-77F). When well grown, gradually acclimatise to outdoor conditions before planting out after all risk of frost has passed.

AFTERCARE: It is wise to provide these tall stems with some added support as they grow.