Oak sapling - leaf discolouration

[Sunhaven]

Hi there

 

Sorry if this isn't posted in the right palce. I've been growing a number of oaks from seed over winter.

 

They all seem to be doing pretty well, but over the last week I have noticed the leaves not looking their usual healthy green. Am I over or under watering them, or is something else the issue? Any advice welcome

 

See pictures here: https://ibb.co/album/NrRxcm

 

Many thanks
 

Edited June 3, 2021 by Sunhaven

[Khriss]

They look good to me , overwatering can be a killer so use one of those soil moisture probes from garden shop . K

[Will C]

They look ok to me 👍 But they can get sun scorched easy at that age, possibly keep them in the shade a little more, it will also stop the soil in the pot drying so much.
Only water well sporadically, they will do better than little and often, I’ve also found in the past that they will want repotting sooner than you would expect.

[Sunhaven]

Thanks both - reassuring to hear they are not doomed!