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Product Description
Giant Sunflower Mongolian Giant is true to its name, as it grows to an impressive 14 feet tall! Produces the largest flowering sunflower heads on the market, growing up to 45cm across. Each flower is a classic sunflower shade, in bright yellow and dark brown centres. Can also be left for birds to feast on throughout winter. A winner of the RHS Plants for Pollinators award. A firm favourite for children to grow next to fences or walls.
*Please note: If your order contains only Seed products, then your items will be dispatched within one working day. If your order contains a mixture of plants and seed products, then your seed items will be dispatched with your first plant delivery.
Plant Size
| Mature Height | 400 cm |
|---|---|
| Mature Spread | 50 cm |
| Plant Spacing | 15 cm |
Planting Notes
| Planting | Plant 1/4 inches deep |
|---|---|
| Soil Type | Well drained soil |
Growing at a glance…
Start seeds indoors 3 to 4 weeks before the last spring frost, often around May. If you prefer, sow seeds directly outside after all danger of frost has passed thinly atop the soil. When seedlings are 5-7cm tall, thin into individual pots. Replant thinned plants. Protect from Snails and Slugs while young by using copper tape or a fine grit around the base of the plant. Gradually harden them off before planting out once the danger of frost has passed.