The Grow Awards 2026 🏆 
White Areas forming on Pots
Walleyeguystarted grow question 6y ago
I have white areas forming on out side of both pots now. I think they are salts. The other half is worried it is mold. The color is white and it looks be soaked into the fabric. There are white " points " coming out in heavy effected areas as well as other areas. Roots I think
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Shagrathanswered grow question 6y ago
Hi there!
I'm pretty sure it is just salt buildup but can you wash it off or something? Maybe if you dissolve some in water and measure the ec you can be sure about this.
Whitr pointy things are roots I believe and that is a goos thing cos now they will dry from the tip and they produce more hair roots everywhere!!
NobodysBudsanswered grow question 6y ago
i wouldn't try to wash it off now.. it's better unavailable to the plants at the moment.. do that afterward. It's perfectly fine. But, do clean them between uses.
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TimTheTerpMananswered grow question 6y ago
If you want to rid your plants or pots of calcium buildup, use a simple acid like lemon juice or vinegar to dissolve the calcium salts. We recommend mixing 1 parts lemon juice to 3 parts water (a 25% solution) OR 1 parts vinegar to 4 parts water (a 20% solution).
Found this on a site. Never tried it thou!
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TimTheTerpMananswered grow question 6y ago
This is most likely calcium buildup from hard water. Are you filtering your water in anyway? A good ro system or even a carbon filter for a hose can solve this. They are also useful in taking out all the chlorine in tap water. Hopefully this will help! Happy Growing!
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