Giant Sunflower Seeds for Planting Heirloom & Non-GMO

Mammoth Grey Stripe Sunflower Color: Bright yellow sunburst petals with deep yellow-orange seeds and deep green foliage.

Growing Info:

Hardiness Zone:	Annual; Zones 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
Days to Maturity:	90-110
Days to Germination:	4-10
Seeding Depth:	0.5 inches
Plant Spacing:	18 inches
Row Spacing:	18 inches
Plant Height:	108-114 inches
Growth Habit:	Upright stalk with a large flower head on top.
Soil Preference:	Average, rich, loamy, and well-drained soil.
Temperature Preference:	50-85 F
Light Preference:	Full Sun