Starting seeds indoors need a lot of light. It sounds like your brussel sprouts didn’t get enough sun and are trying to grow long and reach for it. Bring the sprouts outside for a few hours each day (not on rainy days) or set up a few grow lights about 4 inches over the sprout heads to help them out (low-energy LED bulbs or florescent work best; avoid using bulbs that heat up over time).
Hi Ashley,
Starting seeds indoors need a lot of light. It sounds like your brussel sprouts didn’t get enough sun and are trying to grow long and reach for it. Bring the sprouts outside for a few hours each day (not on rainy days) or set up a few grow lights about 4 inches over the sprout heads to help them out (low-energy LED bulbs or florescent work best; avoid using bulbs that heat up over time).