Try for a seed spacing of at approx. 4.68 inches (12.0 cm) and sow at a depth of around 0.49 inches (1.25 cm) if planning to sow direct.

Sunflower normally grows to a mature height of 1.50 metres (that's 4.88 feet imperial) so ensure you have enough space in your garden for this plant.

Your garden has full sun light which is ideal for Sunflower.

Remember to water often.

Your garden's USDA Hardiness Zone (5) is within the ideal range for Sunflower. The recommended range is between Zone 4 and 9.

Sunflower ideally needs a soil ph of 5.7 to 8.1 (acidic to alkaline soil), so check your soil acidity regularily.

More information about Sunflowers: mammoth (fencelines) is available in the Folia gardener's wiki. All Sunflowers: mammoth (fencelines) Care Instructions have been kindly provided by our members.