Seedlings with curling leaves - Page 4

hovermother22 · 3 Weeks Ago

I have had issues with the Big Beef F-1s I have planted the last couple of years. I get a lot of leaf curling during the seed-growing stages and they generally look unhealthy. I spoke to a company rep, and she said that Big Beef need more light than other varieties and she said it could be edema or intumescence. Anyone else have this issue?

ClarkB · 3 Weeks Ago

I've had lots of issues with unhappy seedlings indoors the last few years. It was very variety dependent - some were fine, but many had slow growth and curled leaves that would eventually fall off. This year I had several that started down that path. I'd been wondering if it might be temperature related as we set the thermostat to about 58F at night. Last year I purchased a large heat mat that I just put under the pots, which did not seem to help. This year I tried again putting the pots on the heat mat but also put large plastic bins upside down over the plants at night leaving about a 1" gap along one edge to allow some moisture to escape. I only plugged in the heat mat at night. The heat mat warmed the air around the leaves under the bins. After a few nights of this, all my sad seedlings looked much better. I continued that process for the rest of their indoor time (~3 weeks), and every seedling looked great. Getting them outside in the natural sunlight whenever the days are warm enough (~60F) also makes a big difference for me.

3 Weeks Ago	#46
hovermother22 Tomatovillian™ Join Date: Feb 2016 Location: Chicago Posts: 70	I have had issues with the Big Beef F-1s I have planted the last couple of years. I get a lot of leaf curling during the seed-growing stages and they generally look unhealthy. I spoke to a company rep, and she said that Big Beef need more light than other varieties and she said it could be edema or intumescence. Anyone else have this issue?

3 Weeks Ago	#47
ClarkB Tomatovillian™ Join Date: Mar 2020 Location: Syracuse, NY Posts: 32	I've had lots of issues with unhappy seedlings indoors the last few years. It was very variety dependent - some were fine, but many had slow growth and curled leaves that would eventually fall off. This year I had several that started down that path. I'd been wondering if it might be temperature related as we set the thermostat to about 58F at night. Last year I purchased a large heat mat that I just put under the pots, which did not seem to help. This year I tried again putting the pots on the heat mat but also put large plastic bins upside down over the plants at night leaving about a 1" gap along one edge to allow some moisture to escape. I only plugged in the heat mat at night. The heat mat warmed the air around the leaves under the bins. After a few nights of this, all my sad seedlings looked much better. I continued that process for the rest of their indoor time (~3 weeks), and every seedling looked great. Getting them outside in the natural sunlight whenever the days are warm enough (~60F) also makes a big difference for me.