Herbs forum: White deposit on the rim of Basil pot

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NCBaker
Mar 5, 2017 10:38 AM CST
Can someone suggest what this white deposit is on my basil plant?

Read on the web that it could be some salts or minerals.

Here is my how I water my herbs.
Herb pots are in a tray with a drip line that fills about 1/4 inch of water each day for pots to absorb.
Once per week ( Sunday ) I mix 1 gal with 1 teaspoon of 20-20-20 fertilizer to water multiple trays. Each tray gets about 1/4 of the solution.

Other pots do not have the same white powdery rim so I wonder if this basil plant gets too much fertilizer?

Thanks in advance.
NCBaker
Thumb of 2017-03-05/NCBaker/b5003a

Name: Linda
Carmel, IN (Zone 5a)
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mom2goldens
Mar 5, 2017 4:52 PM CST
Welcome! NCBaker

It does look like some kind of salt/mineral deposit on that pot. Most herbs require very little fertilizer, so 20-20-20 may be quite a bit more than it needs.

Linda

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