Strange leaves need help.

[VaNdLe]

Noticed that some of the bigger fan leaves are curling inwards to the point they almost touch is this abnormal ? Some deficiency or over watering ?
I got no clue help me out guys.
Thanks



 

[Frank Reynolds]

looks to me like too high a salt concentraion in the medium, due to high temps causing plants to take up water leave salts behind.

 

Are you feeding them liquid nutes? if so i'd reccomend flushing the plant with water.

[VaNdLe]

looks to me like too high a salt concentraion in the medium, due to high temps causing plants to take up water leave salts behind.

 

Are you feeding them liquid nutes? if so i'd reccomend flushing the plant with water.

No nutes, the medium is 5% Perlite 45 % composted soil and 50% Potting mix.

although the compost wasent fully finished but was damn close i pulled out a few larger bits of uncompensated matter.

[VaNdLe]

looks to me like too high a salt concentraion in the medium, due to high temps causing plants to take up water leave salts behind.

 

Are you feeding them liquid nutes? if so i'd reccomend flushing the plant with water.

Actually now i remmeber i did give it some at 2 weeks and 4 weeks but only 400ml diluted each time its been flushed heaps since

[VaNdLe]

Problem solved - It is heat stress

from: growweedeasy.com/heat-light-stress

 

Heat Stress

 

Problem: Your cannabis plant can only withstand a certain amount of heat and light. After a certain point, your cannabis will start exhibiting signs of stress on the leaves near the sources of light and/or heat. Your leaves will get yellow or brown brown spotting and may appear generally burnt in places when there's too much light.

Cannabis will also display heat stress when grown outdoors in hot, dry weather, especially when not given enough water.

http://www.growweedeasy.com/sites/growweedeasy.com/files/pH-nutrient-deficiency/cannabis-heat-stress-thirsty-sm.jpg

When the heat gets too high, the edges of the leaves will begin to curl up and the leaves will begin to "cup."

Heat Stress

http://www.growweedeasy.com/sites/growweedeasy.com/files/problem_pics/edges-curling-up-sm_0.jpghttp://www.growweedeasy.com/sites/growweedeasy.com/files/problem_pics/just-edges-curling-marijuana-sm_0.jpg

Solution: Find a way to lower the temperature and/or increase the circulation in the grow room or grow area if heat is the problem. Having a small fan blowing over the tops of your plants will help prevent hot spots from forming directly under your grow lights.

You may consider removing grow lights further away from the tops of the plants.

When learning how to weed, it's best to try to keep things at a comfortable room temperature at all times for optimal growth. If it's too hot for you, it's probably too hot for your plants.

 

 

 

Leaf Color: 

Edges Appear Brown or Burnt

Leaf Symptoms: 

Upper Leaves / Newer Growth Affected

Leaf Edges Appear Burnt

Leaves Curl Upwards

Wilting / Drooping

Plant Symptoms: 

Leaves Curl Upwards

Plant Wilting / Drooping

[xzavier budd]

in photo 2 there are a few too many dynamic lifter pellets..these burn the top feeder roots when too much is used especialy in a pot. also heat stress..try sitting pot  in a shallow dish of water on super hot days,

good luck, it looks healthy apart from that and should bounce back strong!

xb

[VaNdLe]

in photo 2 there are a few too many dynamic lifter pellets..these burn the top feeder roots when too much is used especialy in a pot. also heat stress..try sitting pot  in a shallow dish of water on super hot days,

good luck, it looks healthy apart from that and should bounce back strong!

xb

the dynamic lifter went in after the folding of the leaves, also i took most of it out ...................But i will try the water in a dish thanks !

Curious how you knew it was Dynamic lifter i cant see shit from that picture

[xzavier budd]

I can see them pellets haha i use it on all my veges its the best organic fert for healthy growth! just don't use too much on young plants especially in pots. little bit every couple weeks, and plenty of water on the real hot days.

doing well