Why is my sunflower sprout droopy?

They grow effortlessly from seed, which typically germinate in just five to 10 days. Sunflower sprouts suffer few problems, although they may sometimes droop for a variety of reasons. Most common causes of drooping in sunflower sprouts are preventable, although some are more difficult to manage and may cause failure and premature death. read more

While your sunflowers may have direct sunlight for some of the day, they are the kind of plant that needs direct sunlight for most/all of the day. Outside is the only place where this can happen. Also it looks like you have them growing in coir or some kind of seed starter. read more

Sunflowers require consistent soil moisture throughout their life, but especially as seedlings. Too little water causes the seedlings to wilt and droop over. Though the plants grow well in a variety of soils, a soil that retains enough moisture to not dry out completely between watering prevents water stress. read more