I planted last week and I noticed the plants I purchased are darker green then the ones I started from seed. I did harden the ones I started and they look fine just lighter color.
What could cause this?
And is it a problem?
Commercial plants are sometimes over-fertilized to give them that dark green appearance. The uninformed public thinks they look healthier which isn't necessarily true.
Other issues - light exposure for example - can lead to color differences as commercial growers grow plants very differently than the average home grower. Different varieties can also differ in leaf color.
Is it a problem? No, not if your home grown plants are sufficiently fed and appear healthy.
Thanks for the reply. I would be afraid to fertilize more because I put bone meal and kelp meal in the whole with all the plants. And the soil is very well composited. The purchased ones may have been in the sun more.