Grasscity.com Forums - View Single Post - My botom leaves are wilting, dying and curling upwards

Klozit King · #4 (**permalink**) 09-15-2001, 01:04 AM

This is definitely the result of a magnesium deficiency. Even though magnesium isn't normally a fert element, marijuana gobbles it up like it's going out of style, and if it runs out, all the leaves begin to curl upwardly (in prayer) and fall off inexplicably.
What some new growers might not realize, is that magnesium is NOT included in the ferts you buy in the store, and you have to add it yourself.
Most plants don't like Mg as much as Mary does, (Other than tomatoes) so they don't add it to the formula.
Just disolve 1 tbsp of EPSOM SALTS in a gallon (4 litres in Canada) of water and feed. Be sure to follow a flushing program, every 4 weeks. using too much minerals and fertillizers can cause a dangerous salt build-up, which could potentially prevent the uptake of Phosphorus.
I hope this helps.
k.k.

#4 (permalink) 09-15-2001, 01:04 AM
Klozit King Registered User Join Date: Sep 2001 Posts: 5	Upward curling leaves... This is definitely the result of a magnesium deficiency. Even though magnesium isn't normally a fert element, marijuana gobbles it up like it's going out of style, and if it runs out, all the leaves begin to curl upwardly (in prayer) and fall off inexplicably. What some new growers might not realize, is that magnesium is NOT included in the ferts you buy in the store, and you have to add it yourself. Most plants don't like Mg as much as Mary does, (Other than tomatoes) so they don't add it to the formula. Just disolve 1 tbsp of EPSOM SALTS in a gallon (4 litres in Canada) of water and feed. Be sure to follow a flushing program, every 4 weeks. using too much minerals and fertillizers can cause a dangerous salt build-up, which could potentially prevent the uptake of Phosphorus. I hope this helps. k.k. Last edited by Klozit King; 09-15-2001 at 01:07 AM.