Brown Leaf

[Mikkamakka]

Hi,

I have 3 weeks old plants, I have 3 that were all planted at the same time. One of them has started to go brown on the upper leaf edge. I water with tap water which I've measured with a pH meter and reads 7.4 and I have also measured the soil PH which is the same. I have treated them all the same and have given them all Vertafort organic nutrition into the soil. Can anyone give any suggestions or advice on why this has happened to one of my plants or a solution that might solve it. Many thanks for your time.

 

[Billpopy79]

In my limited experience I find those first single finger leaves always do this, I think it could be the plant feeding off them or that sometimes when they droop the touch the soil and get the tips burned.
I usually pull them off once I get to the 3rd node.
I certainly wouldn't worry about it.
The rest of your plants look nice and green.
They do seem to be stretching a bit, they could probably use some more light.

 

[Mikkamakka]

Thanks for replying, yes should be little bit stretching because I just put next to the window to start, I need to soon put outside to planting, but I live in a cold climate, nowadays it's just 5/6 celcuis in the night time, and next week Sunday and Monday will drop again to 3 celcuis which I don't think so it's good for them that's why I hesitate to plant outside yet.