i need help i have some plants which have turned yellow, they have done this a few weeks ago, i took them out of my cupboard and flushed the root system because of over fertilization and they improved. they have done this again, i've been using water only. my intake fan blows directly onto the plants could this be the problem, although my temp gauge says its 24C. Can anyone help me!!!
HIGH All, nitrogen deficiency is a common cause of yellowing older leaves. You can fix this by fertilizing with any soluble N fertilizer or with a complete fertilizer that is high in N. If it's a N deficiency you should see some recovery in three or four days. Can you move the plants so the fan isn't directly blowing on them? Overwater is a problem too...do the lift the pot test if it's heavy (it's wet) don't water. if it's light (dry) water it.