These are recently planted KBTs (& some Goliaths) that I started from seed. The KBTs were started a bit too early maybe. The leaves are going straight brown & the plants do not appear to be thriving. I replaced two so far & likely will replace a couple others.
This weird browning is new to me. I've been lucky as I've never lost a new plant ever.
Having problems in the very beginning is new to me. The plants were all cold hardened, maybe a bit too cold as temps dropped quite low in early May here in Michigan. Nothing below 40 I'm sure but it might have went below 50 a couple times.
The pic is full sized in an attempt to show details better. I really wish I had better pictures & will get some more today when I go to the garden (a rented plot).
Thanks!