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Over watering


by Nebula Haze

Problem: Your plants leaves will start drooping if they've been over-watered or under-watered. If you've overwatered your plant, its leaves will be firm and curled down all the way to the stem of the leaf. You may also notice Chlorosis (Leaf Yellowing). 

Overwatering does not usually mean you've been "giving the plant too much water." It almost always means you've been "giving the plant water too often." 

Plants use their roots to get oxygen which is dissolved in water or oxygen in their grow medium. When you water your plants too often, its roots are sitting in stagnant water which no longer has any oxygen left. The reason your plants droop is because basically their roots are starving for oxygen.

An overwatered Marjuana plant Marijuana Plant drooping due to being overwatered This young over-watered marijuana plant is drooping

Overwatered Marijuana Plants

  • Drooping / Curling is the first sign of overwaterd marijuana plants
  • Leaves are firm and curled down all the way from the stem to the leaf
  • Will eventually lead to leaf yellowing and other signs of nutrient problems if not corrected

Overwatered marijuana plant Overwatered marijuana seedling

Severely overwatered cannabis plant

Overwatered marijuana seedling Over-watered weed plant

Overwatered cannabis plant

The drooping cannabis plant below did not have drainage holes (water could not drain out the bottom of the pot). After watering the plant which appeared healthy the night before, the grower came back to this drooping plant the next day - this case of overwatering was caused by too much water being held near the roots due to lack of drainage:

Over watered cannabis plant did not have any drainage - began drooping overnight after being watered

Solution: The best thing you can do for overwatered plants is give them time without watering, and then start off watering slowly until things seem back to normal. Make sure that water is able to drain easily out the bottom of potted cannabis plants.

How to water cannabis properly

  1. Wait until the top of the growing medium is dry about an inch deep (up to your first knuckle).

  2. Add water until you see some at least 20% extra runoff water drain out the bottom of your pot. Go back to step 1.

Learn more about how to water your marijuana plants.

Some growers also use the "lift the pot" method to decide when to water your plants (basically wait until your pot feels "light" since the plants have used up all the water). It's up to you to decide what's easier for you.

If your plant medium seems to stay wet for a long time (more than 5 days or so), you may need better drainage. This also can happen when growers put tiny plants in a pot that's way too big.

Make sure that water drains freely from the bottom of your container (it's recommended that you provide enough water to get at least 20% extra runoff every time you water your plants).

You should see water coming out the bottom within a minute or two after watering. Then don't water your plants again until the soil is dry up to your first knuckle.

If your plants are already overwatered, you can try to increase the temperature and airflow to help the water evaporate more quickly. You can also use a pencil to gently poke some air holes into the growing medium to provide extra aeration and oxygen to the roots.

For other growing mediums besides soil, your watering method will vary, but if your plants are drooping and you've been feeding them a lot of water, it's a good idea to cut back and see if that helps.

If you're growing hydroponically with your marijuana roots directly in water and you see the signs of overwatering, that means you have a problem at your roots. Either your plants have root rot which is preventing them from getting oxygen at their roots, or you are not dissolving enough oxygen into the water (you can easily increase the dissolved oxygen in your water with a quality air pump and a few air stones).

 

Need more help?

If your plant is experiencing "the claw" and not just normal drooping (the ends of leaves are curling like a claw or pointing down like talons), then you may actually have a nitrogen toxicity (too much nitrogen). 

These Plants Are NOT Overwaterd, These Leaves Show Signs of 
Nitrogen Toxicity
("The Claw", tips bent down, curling / clawing, dark green leaves)

Nitrogen toxicity - marijuana plant Nitrogen toxic marijuana plant - NOT overwatered

 
Picture: 
Overwatered Cannabis Picture - Drooping - GrowWeedEasy.com
Big Symptom Picture: 
Leaf Color: 
Edges Appear Brown or Burnt
Leaf Symptoms: 
Upper Leaves / Newer Growth Affected
Lower Leaves / Older Growth Affected
All Leaves Seem Affected
Leaf Tips Appear Burnt
Spots
Slow Growth
Leaves Curl Under
Plant Symptoms: 
Weak Stems
Slow Growth
Leaves Curl Under
Plant Wilting / Drooping
Root Symptoms: 
Brown
Smelly
Mushy
Slow Growing

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