Inthefield
Member
Week two of flower or so, in soil, plants, especially fan leaves, starting to pale, and show signs of deficiency in something. See photos. Any tips? Thanks in advance.
Calcium deficiency?
- Thread starter Inthefield
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manfredo
Well-Known Member
Looks more like a magnesium deficiency to me...but they often go hand in hand. Many strains need a lot of mag. during flower.
www.growweedeasy.com
How to fix Cannabis Magnesium Deficiency (Mg) Pics & Symptoms
Does your cannabis plant have yellowing lower leaves between the veins? See pictures of a magnesium deficiency and learn the easy solution.
www.growweedeasy.com
manfredo
Well-Known Member
and / or....I meant to say potassium and magnesium def. often go hand in hand
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How to fix Cannabis Potassium Deficiency (K) Pics & Symptoms
Leaves with a potassium deficiency have yellow, brown, or burnt edges and tips. It may look like nutrient burn, but the leaf margins also turn yellow.
www.growweedeasy.com
youraveragehorticulturist
Well-Known Member
I agree with manfredo about lack of magnesium, maybe K. For me, calcium deficiency shows up as small round spots near the bottom of leaves vs the ends/tips of the leaves.
Are you just in soil, no nutrients or anything else new since you started flower? Sometimes high Phosphorus bloom nutes can lockout magnesium, even though there is "enough" in the soil.
Are you just in soil, no nutrients or anything else new since you started flower? Sometimes high Phosphorus bloom nutes can lockout magnesium, even though there is "enough" in the soil.
Treespiker
Well-Known Member
I see you joined less than one hour ago, so here's a tip: This is the wrong forum. You should have posted under "Marijuana Plant Problems".
Inthefield
Member
Thank you!
Inthefield
Member
Thanks you guys. I’ll do more research along those lines. In soil, with Gaia and compost. Had them vegetative in the greenhouse then brought them under lights. My last crop had the same problem though near the end though, so It must be something I’m short on.