By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Yellow and brown leaves
2x2UkGrow420started grow question 5y ago
Hi, plants have got yellow with brown spots on old leaves at the bottom of the plant, researched and think it may be cal/mag deficiency but not sure, any help advice much appreciated.
likes
Shagrathanswered grow question 5y ago
Hi there!
To me that yellowing looks like the plant is just cannibalizing those leaves 'cos she dont need em anymore. The reason I feel like this is that only those few leaves seems to be affected and everything else is looking healthy. I think that if it was bigger deficiency you should see symptoms on more leaves than those few.
Maybe keep an close eye on her and see if this spreads before giving something more?
DixonCideranswered grow question 5y ago
Hmm. Shagrath may be right on this one. However, Magnesium deficiency will present itself in the older growth first. I see that you are using a 3 part fertilizer now, I do like to add cal-mag into the mix for my girls.
1 like
Complain
Similar Grow Questions
Solved
magnumalessio
Yellow LeavesOk guys, today is the 5th day without irrigate cause the soil was too wet.. now my leaves turn out like this. What do i need to do? Do i need to give them something? Every week i give them neem oil for invader so i think is not that problem.
Leaves. Color - Yellow
3y ago
3
6
Solved
blindspot
about early harvestTrichomes and leafs are like this and heat stress screwed me up. If I make flush and harvest, will i be high ?
Buds. Other
Leaves. Color - Yellow
4y ago
2
Solved
klimfish
Seedling leaf color is very light green.I'm wondering if there is any reason to be concerned with the lighter color leaves of one of my plants? They are significantly more "lime green" than the other two. he one in question is the bottom one in the picture attached. It is clear how much darker in color others are.
Week 1
Leaves. Color - Yellow
4y ago
3
3
Solved
Weedix25
First leaves yellow ?The color of the first leaves is abnormally yellow or light green, don't you think?
Week 1
Leaves. Color - Yellow
3y ago
4
3
Solved
BlazedShade
Slight Yellowing on tips of new-growth? (VEG)Why am I getting slight yellowing on the ends of new-growth leaves? It's affecting every plant. The only clue I have is that it might(?) be related to very cold nights because of my re-vegged photoperiod showing purpling on the edges of its leaves. Any ideas?
Week 5
Leaves. Color - Yellow
3y ago
2
2
Solved
SqwshKush
Leaves yellowingWhy are some of my Triple Cheese leaves yellowing? End of week 6 of flowering stage. Thank you! Only appeared over the last week, quite quickly after watering again yesterday (1.5L every 3 days). VPD 1.3 regulated
1st photo Triple Cheese, 2nd Runtz Muffin, 3rd Biscotti Mintz
Week 13
Leaves. Color - Yellow
1y ago
1
2
Solved
promo
What is this rust discoloration on leaves, and how can I stop it?Does anyone happen to know what is causing this rust colored discoloration on fan leaves? It starts on bottom leaves, and moves up. Also seeing yellowing on leaves, and not sure if its pest issue, light issue, deficiency, or watering concern. Super nervous plants are dying🙁
4y ago
7
3
Solved
JBalz
What happens if fan leaves all fall off before maturity?This is first time ive dabbled with ilgm autos. Plants grew twice the recommended size and are on the 9th week. The pistols are 90% white and the fan leaves are yellowing fast. I've never experienced this and am afraid the yellowing will affect buds before ripe. Suggestions?
Leaves. Color - Yellow
4y ago
1
Solved
xbabybitchx
Phosphorous deficiency or just pissed off due to nutrients?Leaves turning purple/ then yellow/ I haven't been doing FEED FEED FLUSH, is she angry? or is it phosphorus def? PH is 6.1 mixed, soil is 6.0 run off 6.1/ I cut floragro out due to nitro tox with my other plants// should I add back in? I don't know tds, i need to buy one ASAP.
5y ago
6
5
Solved
Ftr_3650
Yellow leavesHad a bit of nutrient issues, yellow leaves with some black spots and tears, will these leaves bounce back or should I remove them?
Leaves. Color - Yellow
5y ago
3
4
Solved
Closet01
Maybe nutrient burn or?My biggest plant has started looking a little sick, have a feeling it may be some type of nitrogen toxicity? Maybe it’s just got some nute burn? I have flushed it out and will leave it be for a few days and hopefully it perks back up
Week 4
Leaves. Color - Yellow
5y ago
1
Solved
Accidental_Grower84
Yellow spots on leavesHi Growers! First grow here and I'm concerned about new yellow spots on my lower fan leaves (one tip is dark too). Soil is Atami Kilomix, heavily fertilized. 2 days ago only one leave was affected. What can it be? Mg def? N def? P def? N tox? Too less water (100ml every 2-3days)?
Week 6
Leaves. Color - Yellow
5y ago
1
1