I have basil the age 13 days and it grow very well, then I notice brown spot I don’t know the reason but I think the reason because the lamp was to close i didn’t use lamp arm extensions but still not sure if this is the reason.
my question is what I am supposed to do? should I leave it?
here is picture:
yes, if any plant grows too tall and too near to the lamp- it gets burnt.
Also, at that pod age you should add one extension to raise the lamp.
You can just remove that one leaf.
Or, you can snip off the tips to promote more growth. It is recommended to do so approximately one month after planting anyways.
Let us know how it’s growing!
the damage is on cotyledons, not on true leaves.
So, what is the temp range and how is the garden watered?
Since it is on cotyledons I would just give it some time and monitor true leaves carefully. Cotyledons will die off anyways.