Leggy Seedlings

Leggy is a term used to describe seedlings that have thin, long stems and are focused more on growing up rather than developing leaves or roots. While more uncommon when direct sowing, you might experience leggy seedlings when starting seeds indoors. You can make a number of small corrections to address the legginess before it becomes too late and the seedlings wilt over. 

1. Thin seedlings planted together to the single strongest seedling, so they do not compete for root space, nutrients, or light. Don't waste the cut sprouts, top salads or avocado toast with them!
2. Lower the seed grow light or raise the seedling trays closer to the light with a box. A high light might cause the seedlings to devote their energy to stretching, leading to an eventual collapse. 
3. Keep the grow light on for 12-16 hours of the day rather than 8 hours. If seedlings don't get enough light, they might stretch out to maximize the light they receive.
4. If the seedlings are placed in a window, rotate the trays to stop them from growing at an angle. 
5. Seeds like peppers, tomatillos, tomatoes, and eggplants need warmer temperatures to aid germination. Using a heat mat is a great option. However, keeping the heat mat on after the seeds germinate may cause the seedlings to focus on growing up rather than developing roots or leaves. 
6. Place a gentle fan to blow on the seedlings and simulate wind. This can help toughen the seedlings. 
7. Seedlings for plants like tomatoes can be buried up to the lowest set of leaves to promote strength.