tomato seedlings

Question

Planted some heirloom tomato seeds. When they came up, some were white leaves and some green in the same container. What’s up with that?

Answer 1

The white or lightening of the seedling leaves could be due to cool temperatures or too bright of sunlight.

Here are some articles with more information.

https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-leaves-turn-white.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-from-seed.htm