HOLY CRAP HOLY CRAP. This is my first grow and has been going quite swell, until now. Ive been on the forum for a bit now learning from all of this valuable information, i really think most people here have some great knowledge and experience that i would love to learn from so i come in need of help. i am growing 2 strains 1 himilayan kush and 1 tangerine dream. They have been going great until now, something seems to be happening to my tangerine dream. I transplanted the plants 5 days ago and they seem to have stopped drinking but i do not think this is part of what is happening to the TD since other than a bit of unthirst the himilayan kush is lookin good. whats happening to my TD is for maybe 3 days now the top full (i show which set in the pics) set of leaves has been drying out and now i am getting these spots on the outer edges of the oldest leaves. can someone help me please?
please help me diagnose this
- Thread starter rpbbie305
- Start date
MysticMorris
Active Member
In my own experiences spots on old leaves (spreading quickly to middle leaves) mean your PH is off. Repotting should help if the new soil has a better ph. Consider things like (1) how much solid residue is in your water you feed them and how will it alter the PH over time with multiple waterings. Salts will steadily alter the PH in the soil if they build up (2) how your nutrients, if you are using any, effect the ph of the water once added. For example my tap water is really alkaline, but when I've added nutes it becomes quite acidic. (3) What PH your soil is to start with, this is important. Test the run-off water of some fresh soil as this is your starting point. (4) lastly by testing the run-off water of the plants after you water/feed them you can see where you are at in terms of PH. A simple bottle of PH Up and PH down can be used sparingly over multiple waterings to bring the PH to wherever you need it (roughly speaking between 6and7). A simple PH tester (the chemical one I use) is cheap as chips.
grapesnowcone
Well-Known Member
Looks like a phosphorus deficiency.. I'm not too sure on this..