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Diagnose Sick Cannabis Plants | Marijuana Nutrient Problems & Symptoms by Picture
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<blockquote data-quote="L0oD" data-source="post: 419351" data-attributes="member: 42867"><p>Root Problems</p><p></p><p></p><p></p><p>Cannabis Plants With Root Problems Show Many Symptoms</p><p></p><p>Cannabis may appear overwatered or droopy</p><p>Curling or cupping of leaves</p><p>Wilting - either individual stems wilt or the whole plant may wilt</p><p>Leaf yellowing</p><p>Brown spots / Burnt spots</p><p>Other strange nutrient problems</p><p>Brown or slimy roots - this is often a sign of root rot</p><p>Smelly runoff water (smells rotting or musty)</p><p>Leaves may start dying and falling off rapidly</p><p>Plants drink much less water than usual</p><p>[ATTACH]55122[/ATTACH] [ATTACH]55123[/ATTACH] [ATTACH]55124[/ATTACH]</p><p> </p><p>The cannabis plant below did not have any drainage holes (water could not drain out the bottom of the pot). Notice the strange twisting of some of the leaves. When roots are left in stagnant water for too long,</p><p>they cannt get enough oxygen and tend to develop root problems.</p><p>[ATTACH=full]55125[/ATTACH] </p><p>This particular type of cupping of the leaves below is common among cannabis plants with root problems.In this case, the plant had no drainage from the bottom of the solo,cup,so water was just pooling at the bottom for the roots to sit in. Once the grower poked holes in the bottom of the cup, this problems went away (the cupped leaves didn't recover, but new leaves started growing in happy and healthy).</p><p>[ATTACH=full]55126[/ATTACH] </p><p>Sometimes leaves will tend to cup or curl down due to root problems, like the plant above, but sometimes the curl upwards too, like the poor plant below (this was caused by poor drainage and plant was overwatered,leading to a pretty severe case of root problems):</p><p>[ATTACH=full]55127[/ATTACH] </p><p>This next plant was also overwatered and had no drainage. Notice how dark the soil is and the green algae growing all along the top of the soil - these are more signs the plant has been overwatered for quite a</p><p>while. You should never water your plant when the soil is still wet at the top, and if you notice lots of algae growing on top of your soil, it may be a sign that you're overwatering on a regular basis.[ATTACH=full]55128[/ATTACH]</p><p>The grower of the next plant was going on vacation for a few days, so they chose to overwater their plant in hopes it would be enough water until they got back. While they were gone, they had a huge heat wave.</p><p>So this plant was subjected to overwatering plus heat. A few days later, when the grower came back,they saw that the leaves were cuppping upwards and had turned lime green. The stems and veins of the</p><p>leaves were turning red. You can see the soil is still dark and wet because the plant stopped drinking after developing root problems.</p><p>[ATTACH=full]55129[/ATTACH] </p><p>Possible Triggers For Root Problems</p><p></p><p>Heat - cannabis is more likely to have root problems at higher temperatures</p><p></p><p>Cold - cold roots are unhappy roots - cold shock can cause wilting and other problems</p><p></p><p>Over-watering potted plants - too much watering tends to cause root problems</p><p></p><p>No drainage hole at the bottom of the container - if water can't get out and water is sitting at the bottom of the pot, the roots can "drown"</p><p></p><p>Muddy or thick soil - if your soil is muddy and thick instead of rich and fluffy, it may mean the soil doesn't hold enough oxygen to support your roots.</p><p></p><p>Small plant in a big container - When a seedling (or small plant) is in a big container, it often has trouble getting enough oxygen at the roots. Until the plant has grown bigger and started to fill up the</p><p>container, it's important to avoid overwatering. It can help to water just a little bit at a time, in a circle around the seedling, until it starts growing faster.</p><p></p><p>Big plant in a small container - when roots overgrow their container the plant is considered "root-bound"and the plant often shows symptoms of root problems. When this happens the plant needs to be transferred</p><p>into a larger container to stop the roots from being "choked."</p><p></p><p>Hydroponics - Root problems are caused when there's not enough oxygen in the water, usually caused because it's either too hot or there isn't enough bubbles/aeration.Certain strains are more prone to root problems than others, but good root practices will allow every</p><p>plant to thrive!</p><p></p><p>How to Treat Root Problems:</p><p></p><p>Step 1: Identify what may have caused the root problem (refer to list of possible triggers above)</p><p></p><p>Step 2: Address this underlying issue</p><p></p><p>Happy temps - Make sure your grow area maintains a comfortable room temperature during the day, and is a few degrees cooler at night. Learn more about how temperature affects your cannabis plants.</p><p>Only water your plants when they need it. How often should I water my potted cannabis plants?</p><p></p><p>Make sure potted plants have plenty of drainage, and there must be drainage holes at the bottom.If soil or growing medium holds a lot of water, consider mixing in 1/3 to 1/2 extra perlite to "loosen</p><p>things up" and improve drainage at the roots.</p><p>Put plants in the right sized container to give the roots the best environment to spread out and grow.Brown, smelly roots? Learn how to get rid of root rot.</p><p></p><p>One important thing to note is that after you treat the cause of root problems, the old damaged leaves may never recover! With recovery, you should be looking for the problem to stop spreading, and for new</p><p>leaves to be growing in green and healthy.</p><p></p><p>Enough of all the pics with sad or unhappy roots - before you go, here's a picture of healthy roots growing from a new clone!</p><p>[ATTACH=full]55130[/ATTACH] </p><p></p><p></p><p>Leaf Color:</p><p>Edges Appear Brown or Burnt</p><p>Pale Color Leaves</p><p>Yellow Leaves - New Growth</p><p>Yellow Leaves - Lower, older leaves</p><p>Yellowing Between Veins</p><p>Veins of Leaves Stay Green</p><p>Red or Pink Color on Leaves</p><p>Brown or Dark Spots</p><p>Leaf Symptoms:</p><p>Yellowing Between Veins</p><p>Veins of Leaves Stay Green</p><p>Spots</p><p>Old Leaves Dropping Off</p><p>Slow Growth</p><p>Abnormal Growth</p><p>Leaves Curl Under</p><p>Leaves Curl Upwards</p><p>Wilting / Drooping</p><p>Plant Symptoms:</p><p>Old Leaves Dropping Off</p><p>Slow Growth</p><p>Twisted Growth</p><p>Leaves Curl Under</p><p>Leaves Curl Upwards</p><p>Plant Wilting / Drooping</p><p>Root Symptoms:</p><p>Brown</p><p>Smelly</p><p>Mushy</p><p>Slow Growing</p></blockquote><p></p>
[QUOTE="L0oD, post: 419351, member: 42867"] Root Problems Cannabis Plants With Root Problems Show Many Symptoms Cannabis may appear overwatered or droopy Curling or cupping of leaves Wilting - either individual stems wilt or the whole plant may wilt Leaf yellowing Brown spots / Burnt spots Other strange nutrient problems Brown or slimy roots - this is often a sign of root rot Smelly runoff water (smells rotting or musty) Leaves may start dying and falling off rapidly Plants drink much less water than usual [ATTACH]55122[/ATTACH] [ATTACH]55123[/ATTACH] [ATTACH]55124[/ATTACH] The cannabis plant below did not have any drainage holes (water could not drain out the bottom of the pot). Notice the strange twisting of some of the leaves. When roots are left in stagnant water for too long, they cannt get enough oxygen and tend to develop root problems. [ATTACH=full]55125[/ATTACH] This particular type of cupping of the leaves below is common among cannabis plants with root problems.In this case, the plant had no drainage from the bottom of the solo,cup,so water was just pooling at the bottom for the roots to sit in. Once the grower poked holes in the bottom of the cup, this problems went away (the cupped leaves didn't recover, but new leaves started growing in happy and healthy). [ATTACH=full]55126[/ATTACH] Sometimes leaves will tend to cup or curl down due to root problems, like the plant above, but sometimes the curl upwards too, like the poor plant below (this was caused by poor drainage and plant was overwatered,leading to a pretty severe case of root problems): [ATTACH=full]55127[/ATTACH] This next plant was also overwatered and had no drainage. Notice how dark the soil is and the green algae growing all along the top of the soil - these are more signs the plant has been overwatered for quite a while. You should never water your plant when the soil is still wet at the top, and if you notice lots of algae growing on top of your soil, it may be a sign that you're overwatering on a regular basis.[ATTACH=full]55128[/ATTACH] The grower of the next plant was going on vacation for a few days, so they chose to overwater their plant in hopes it would be enough water until they got back. While they were gone, they had a huge heat wave. So this plant was subjected to overwatering plus heat. A few days later, when the grower came back,they saw that the leaves were cuppping upwards and had turned lime green. The stems and veins of the leaves were turning red. You can see the soil is still dark and wet because the plant stopped drinking after developing root problems. [ATTACH=full]55129[/ATTACH] Possible Triggers For Root Problems Heat - cannabis is more likely to have root problems at higher temperatures Cold - cold roots are unhappy roots - cold shock can cause wilting and other problems Over-watering potted plants - too much watering tends to cause root problems No drainage hole at the bottom of the container - if water can't get out and water is sitting at the bottom of the pot, the roots can "drown" Muddy or thick soil - if your soil is muddy and thick instead of rich and fluffy, it may mean the soil doesn't hold enough oxygen to support your roots. Small plant in a big container - When a seedling (or small plant) is in a big container, it often has trouble getting enough oxygen at the roots. Until the plant has grown bigger and started to fill up the container, it's important to avoid overwatering. It can help to water just a little bit at a time, in a circle around the seedling, until it starts growing faster. Big plant in a small container - when roots overgrow their container the plant is considered "root-bound"and the plant often shows symptoms of root problems. When this happens the plant needs to be transferred into a larger container to stop the roots from being "choked." Hydroponics - Root problems are caused when there's not enough oxygen in the water, usually caused because it's either too hot or there isn't enough bubbles/aeration.Certain strains are more prone to root problems than others, but good root practices will allow every plant to thrive! How to Treat Root Problems: Step 1: Identify what may have caused the root problem (refer to list of possible triggers above) Step 2: Address this underlying issue Happy temps - Make sure your grow area maintains a comfortable room temperature during the day, and is a few degrees cooler at night. Learn more about how temperature affects your cannabis plants. Only water your plants when they need it. How often should I water my potted cannabis plants? Make sure potted plants have plenty of drainage, and there must be drainage holes at the bottom.If soil or growing medium holds a lot of water, consider mixing in 1/3 to 1/2 extra perlite to "loosen things up" and improve drainage at the roots. Put plants in the right sized container to give the roots the best environment to spread out and grow.Brown, smelly roots? Learn how to get rid of root rot. One important thing to note is that after you treat the cause of root problems, the old damaged leaves may never recover! With recovery, you should be looking for the problem to stop spreading, and for new leaves to be growing in green and healthy. Enough of all the pics with sad or unhappy roots - before you go, here's a picture of healthy roots growing from a new clone! [ATTACH=full]55130[/ATTACH] Leaf Color: Edges Appear Brown or Burnt Pale Color Leaves Yellow Leaves - New Growth Yellow Leaves - Lower, older leaves Yellowing Between Veins Veins of Leaves Stay Green Red or Pink Color on Leaves Brown or Dark Spots Leaf Symptoms: Yellowing Between Veins Veins of Leaves Stay Green Spots Old Leaves Dropping Off Slow Growth Abnormal Growth Leaves Curl Under Leaves Curl Upwards Wilting / Drooping Plant Symptoms: Old Leaves Dropping Off Slow Growth Twisted Growth Leaves Curl Under Leaves Curl Upwards Plant Wilting / Drooping Root Symptoms: Brown Smelly Mushy Slow Growing [/QUOTE]
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Diagnose Sick Cannabis Plants | Marijuana Nutrient Problems & Symptoms by Picture
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