The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Cal , mag deficiency ???
FastbudsFanatic
started grow question 6y ago
Is that calcium / magnesium deficiency ??? Wrinkled leaves , and brown spots are heavier on darker plant , any help appreciated
Solved
Week 5
Leaves. Twisted
Leaves. Color - Mottling
likes
KenSpliffeyJr
answered grow question 6y ago
Looks that way to me man, see some similair effects to my plants in their 4th week of veg in my diary ( I think It’s week 4) Make sure your ph is right when feeding and giver a nice boost of cal mag. Happy growing
likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
HydrokronicZA
Nutrient deficiency or surplus?
Hi Guys will post a pic shortly. Have to update the grow as we are actually heading into week 6. One of the white widows is a fair bit smaller than the other. And is showing some form of difficiency or nutrient burn. I think it may be due to to little phosphorus. Opinions?
Week 2
Leaves. Tips - Die
Leaves. Curl up
Leaves. Color - Mottling
6y ago
4
3
Solved
MMSC16
Yellow Leaves Autoflower
Novice grower, Outdoor. Started in a 70/30 coco-coir to perlite mix. Forgot Worm Castings until 22nd June, implemented with top dressing of Gaia Green Power Bloom and All Purpose. Overwatered at stem for a week or so. I suspect it's either an N, P ,or K deficiency (nuteburn?)
Leaves. Color - Yellow
Leaves. Color - Mottling
3y ago
1
2
Solved
MyWeedAccount
Is this an expected fade and if not, how do I fix these leaf issues?
I'm growing a NightOwl auto in DWC and it's on D58 (suggested flowering time is 75-85 days). The plant is looking like it's fading (getting cal-mag and different types of deficiencies), but I think it's a bit early for that based on looks. pH is 6.06, 840 ppm, 68F water temp.
Leaves. Color - Mottling
4y ago
1
1
Solved
SmylinPupil
Twisting and curling sugar leaves
Purple kush auto, almost 5 weeks of flower maybe 4 more to go . Is this normal? Sugar leaves twisting and curling? I haven’t really seen this before. The leaves are pointing straight up, lots of sun? Thanks
Week 12
Leaves. Curl up
Leaves. Twisted
5y ago
1
Solved
Reefer_Chiefer1024
What kind of deficiency?
Is this a magnesium deficiency or something else?
Week 6
Leaves. Color - Mottling
4y ago
2
2
Solved
Gewroo
Plant issues... How long to harvest?
Could someone please look at my (only) diary and give me an estimate on when harvest might be? I have microscope pictures up . I think I see cloudy trichomes with the possibility of a few amber. Maybe ready now? Not sure but hope to harvest before plant gets much worse. Thanks!
Leaves. Color - Yellow
Leaves. Color - Mottling
Plant. Other
6y ago
2
5
Solved
VeruZ
Healthy?
Sie wachsen zur Zeit sehr schnell allerdings haben manche Blätter Flecken wie man sehen kann. Die ersten Wochen habe ich leider mit einem zu hohen Ph Wert gegossen (ca 8) dies habe ich jetzt aber angepasst und sie bekommen ihre 6,4.Vielleicht Nährstoffmangel? Bio Grow hinzufügen?
Leaves. Color - Pale
Leaves. Color - Mottling
2y ago
3
3
Solved
alwaysdown
light green? overwatering?
How's this plant look? Seems kinda splotchy light green under my LED' compared to my two other strains. First grow.
Week 2
Leaves. Color - Mottling
5y ago
4
Solved
scotch_egg
Calcium issues?
Is this the start of a calcium deficiency? Aside from these couple of spots the plant looks healthy, but I really don't want this to progress. I can't measure my PH for a couple of days, sadly, until I get the equip through the post to do so.
Leaves. Color - Mottling
5y ago
3
Solved
ezgrows4anoob
Problem with front middle purple punch. Info provided(See description for more); Temp: 71-79.5F, RH: 46.1, DLI: 40-50(decreased today due to tacoing)
This is an organic grow using Coast of Maine Organic plant food, and lobster meal. It appears to me that the plant has deficiencies for all the three major nutrients, or lockout, but today it is also showing what appears to be Calcium or Magnesium. I've been using castings too.
Week 10
Leaves. Edges burnt
Leaves. Twisted
Leaves. Wilting
3y ago
4
4
Solved
SmokeableHobby
Does this look like a calcium deficiency?
Seeing yellowing/browning on the fan leaves for my bonsais. Is this a calcium deficiency?
Week 4
Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
3
4
Solved
RoomForBloom
Weird Spots on almost every leaf overnight? (Leaf Burn???) My plant developed these spots on the leaves basically overnight...
I was looking after them just yesterday evening and the plant was fine, however I did a mistake. The left plant got completely wet (i had to move it through the rain) and i did not dry it before the light went back on. Right plant is completely fine. No pests (thrips spimis etc.)
Leaves. Color - Mottling
Leaves. Other
4mo ago
1
3
Solved
SirBudAlotts
Re-Veg?
First time growing photoperiod .. Is this lady revegging? Or am I going crazy?
Buds. Other
Leaves. Twisted
1y ago
6
5
Solved
swaygrower
ใบผิดปกติ
ใบไม้มีปัญหา ฉันควรทำอย่างไรดี
Week 5
Leaves. Color - Mottling
3y ago
2
5
Solved
growingpepini
LEAVES LOOKING BAD, ANY ADVICE?
Leaves are giving us weird signals.They look dry and almost like rotting,they are yellowish with browning points and very curled down.She is being kept as safe as possible from wind and rains,buds aren't getting wet and the daily sunlight is pretty hot.Any advice? check out diar
Week 20
Leaves. Curl down
Leaves. Twisted
Leaves. Color - Yellow
5y ago
2
2
Solved
Acidjj
Help! Overwatering in Aero/Hydro??
HI all, I am having the pictured issue with one of my AK fast bud auto seedlings, stunted growth also as its 10 days into the grow. It’s in Aero/hydro RDWC 2min on 2min off sprinklers. 200 ppm. PH perfect. Water temp 18-22c. 3 bubblers in tank plus 1 in res. Anyone have any idea?
Leaves. Veins - yellow between
Leaves. Color - Mottling
Setup. Seedling
5y ago
2
2
Solved
gruenerdaumen
Zwitter???
Lemon super Automatic hat an einer Blattachse männliche pollensäckeyaber an der nächsten Achse/Achsen komplett weibliche Blütenstempel. Mir ist schon bekannt das automatisch minimal männliche Geschlechter entwickeln können, muss ich mir Sorgen machen, oder ist das unbedenklich
Leaves. Twisted
Other. Other
5mo ago
3
3
Solved
SourDeez
Plant #3 (pic above) started as a sprout with discoloration. Now on its 4th node, the plant is still affected. Some other plants seem to have it to a lesser degree. I learned it may be TMV, but they are healthy and growing well other than this slight discoloration. Any thoughts?
Week 2
Leaves. Color - Mottling
6y ago
4
3
Solved
DBQush
A bunch of different leaf symptoms appeared over just a few hours, can you spot the issue in my detailed diaries and solve the mystery?
Everything was well, until over just a few hours they developed all kinds of symptoms. I have 2 diaries here for the grow, the 2 called “Grow #2” and I am very detailed about what has been done day to day. So please have a look and see if you know what might be happening
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Mottling
3y ago
2
Solved
RFarm21
What's the problem with the leaf?
What's up with these leafs? lack of ca/mag ? I'm in the 4th week of flowering.(autoflower). This plant is a little stunted from the beginning but only now do the leaves look like that. two days ago I reduced the dosage of biogrow and bioheaven a little Thanks for the help!
Week 8
Leaves. Color - Mottling
4y ago
3
5