Les semences la campagnarde
Giant Big Mammoth Sunflower
Giant Big Mammoth Sunflower
Bag of 20 seeds
This giant variety is most spectacular. It generates gigantic flowers whose diameter reaches up to 30cm and 2.5 to 3.5 m in height. Firmly anchored, it does not need to be staked. It can even be used as a tutor for other plants (flower or vegetable climbers). When ripe, it produces fleshy seeds that are a good source of protein for humans, birds and squirrels alike.
Sowing depth: 2 cm
Optimal germination temperatures: 20 to 30°C
Time for germination: 7 to 21 days
When to sow: sow indoors 4 to 6 weeks before the last frost date in your area or direct sow after all risk of frost
Draw a line in the soil (in a pot or in the ground), then sow the seeds there.
Transplanting outdoors (for seedlings started indoors): when all risk of frost has passed
Distance in the garden: between plants 45 to 60 cm and between rows 60 cm
Plant height: 200 cm
Soil: well-drained, fertile, rather dry
Exposure: full sun
Maturation: 75 to 90 days
Specificity: grows well in pots