Sharp Rubber Duck

Resources

Resources for Growing Quality Medical Marijuana

Plants showing funny colors or shapes?

Use this chart to help you determine the possible causes for whatever strange problem you seem to be having.

• Don't forget that your problem may not necessarily be a lack of any particular nutrient, the issue is often availability. High pH can prevent plants from absorbing vital nutrients.
• Extreme humidity may cause leaves to remain tissue paper thin.
  
• Take small steps in your attempts to balance your nutrient solution.
  
• It is better to under-feed your plants than to overdose them.
  
• Try adding about half of a recommended concentration as you experiment.
  
• You can always add more later.
  

Symptoms	Suspected Element
	N	P	K	Mg	Fe	Cu	Zn	B	Mo	Mn	Over Fertilization
Yellowing of:
Young leaves
Middle leaves
Older leaves
Between veins
Old leaves drop
Leaves curl over
Leaves curl under
Tips Burn:
Young leaves
Older leaves
Young leaves wrinkle/curl
Necrosis
Growth Stunted
Dark/purple color
Pale color
Mottling
Spindly
Soft stems
Hard/brittle stems
Tips die
Bad roots
Wilting

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