desperately need help- leafs curling dying

hello i have been growning bush and at the moment have two what were very healthy plants. recently leafs have started curling at the tips darkening then going brittle and the edges and tips have started to dry and go brown and will cruble other parts of the plant still look health and both plants are growing fine however the leafs are an issue some leafs after a while stop doing this and go back to normal except where the leafs went brown the small of the two has almost stopped this. ones 5 feet the other 4 and aside from this they appear vrey healthy. their is no yellowing no drooping, they have had alot of water recently due to persistant rain. is this the issues i dont know and they arent getting overheated by the sun. also it only seems to affect older leafs and the plants was transplanted but over a months and a half ago and they has grown over a foot or two from then.
what the fuck is wwrong.
please help its killing me watching this.

not enuff light or bad nut so check it out and fix it mostly nut so get so better stuff r u usein microgrow cuz that the most case of that stuff get liduid plant food 10-15-10

classic sign of to much nutes, water with straight water for a while until leaves stop curling

thereve been grown straight bush not nutes added. never had this problem before and other one is growing fine now got some around the base and about a foot up on fans leafs but its stopped now. the big ones my main problem. i was thinking maybe potassium deficientcy? or yeah too much sun a mate said that it could be late shock coming through from transplating but i dont think thats it they didnt even droop for a day through the transplant. yeah so maybe not enough light. but i thought that made thge plant droop its not drooping and still growing fine. thanks for replys always appreciate more.

There is never too much sun. Plants have an agreement with the sun. If anything is wrong it is 99% or the time the grower. If you are growing in striate soil, then it could be a million things. I wish I could help I have never been an outside grower.

really could use help any one whos got any ideas

if they are growing outside in the uk should be dead already.classic not enougth sun.

Look in my sig for the plant issues: pictures....

But seriously it looks like a nute issue..... Is it possible its getting nutes from something nearby?? maybe its in the runoff of a vegetation field??? Like a corn field or something??

not any type of nute burn, but rather lack thereof. these are classic signs of a potassium deficiency. time to start feeding them.

dont live in uk and they do get plenty of light but thanks for the reply yeah and they dont get any nute run off i checked ph was at around 5 so i figure yeah they've got nute lock out dont know why this has jsut started to happen. water ph is 6.5 around is pure rain water ive added some things to raise ph and have started adding some nutes to the soil hopefully this does the trick but i really dont know. i was thinking opotassium so hopefully your right smokey cause i was going along same lines. cheers for your replys any more are still greatly apreciated. as they are still going down hill

could really use some help into flowreing now and there is still the affect slowed ti down but its starting again please any idea maybe wind burn also??
please need replies

Im having the same problem except mine is indoor grow, I stopped nutes a few days ago and have been giving them just water and the problem is getting worse, not dramatically worse, but its slowly creeping its way around my plant. It looks exactly like yours with the curling and crispy leaves. Im starting to get worried because its 4 weeks in flower and starting to look good. I feel your pain man. Someone out there has the knowledge!! Now we just have to find them.

rhiankellen said:

Im having the same problem except mine is indoor grow, I stopped nutes a few days ago and have been giving them just water and the problem is getting worse, not dramatically worse, but its slowly creeping its way around my plant. It looks exactly like yours with the curling and crispy leaves. Im starting to get worried because its 4 weeks in flower and starting to look good. I feel your pain man. Someone out there has the knowledge!! Now we just have to find them.

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It could be too much nutes or a ph problem or cal/mag def, try those out and see if it get better. I get a cal/mag def in the middle of flower. make sure your water is good at 6.5, give it some cal/mag and plain water for a while

ive found that disolving bicarb soda into water and give them that help i thinks its a form of ph lock out
mines going strong after doing ythat 7 1/2 feet now and full flower tho the symptoms still persist just no way near a bad .