Yellow leaves

[ivantichy]

Hi all,

could anyone help me with this problem please?

- CFL 300W, 55cm above plants,
- plants were in small pods (moved to bigger after yellowing)
- plants stopped growing for a week, so due to small pods I considered fertilizing (amount due to manual)

I moved them to the bigger pod and it seems than new leaves are OK.

Thanks for tips

 

[MadScience]

you need to move those to 1 gallon pots or larger. also, what medium are you using there? the yellowing is nitrogen deficiency.

 

[ivantichy]

you need to move those to 1 gallon pots or larger. also, what medium are you using there? the yellowing is nitrogen deficiency.

Hi, I move them as they are growing. Do you think that actual size of pod is too small to actual size of plants? I would like to have smaller plants as the growing space is 80*60*60cm (31*24*24 in.).
Medium: substrate bought in garden shop that should be suitable for this plant.

What is strange for me that leaves turned yellow after fertilizing. When moving back to "clean" substrate it back OK.