tomato plants yellowing

Question

Why are our homegrown tomato plants’ leaves turning yellow while we are hardening them off? We’ve been putting them outside in the sun for a few days. But the leaves seem to be yellowing.

Answer 1

When hardening off seedlings you gradually introduce them to the sun. You start off by placing them in a sheltered, shaded area and then little by little expose them to the sun.

For more information on how to harden off your seedlings, please visit the following link:
https://www.gardeningknowhow.com/garden-how-to/seeds/how-to-harden-off-your-seedlings.htm