It's not actually mould. If you look closely it's quite different to mould. It is in fact a build up of salts and minerals. I noticed this on my pot ages ago but wasn't too worried about it as it seemed to have no effect on the plant itself.
After a bit of googling, flicking through my gardening books and reflecting on my current gardening practices I'm confidant that it is salt build up. I appears on the base of the pot and over a couple of months I have noticed it "growing" up the sides, but I believe that it can also build up on the top soil. Although I think this may be less noticeable.
Commonly caused by the plant and pot becoming water logged - over watered, nutrient fed and poor drainage. This combination of factors has resulted in the plant being unable to draw up any more water and the roots and soil are sitting in the surplus water in the bottom of the pot.
How to Get Rid of it
After a bit of googling, flicking through my gardening books and reflecting on my current gardening practices I'm confidant that it is salt build up. I appears on the base of the pot and over a couple of months I have noticed it "growing" up the sides, but I believe that it can also build up on the top soil. Although I think this may be less noticeable.
Commonly caused by the plant and pot becoming water logged - over watered, nutrient fed and poor drainage. This combination of factors has resulted in the plant being unable to draw up any more water and the roots and soil are sitting in the surplus water in the bottom of the pot.
How to Get Rid of it
- Cut down on watering and check if the plant requires watering but pushing your finger into the soil to see if it is still moist below.
- Don't let the pots sit with water in the dishes at the base for a long period of time as this is the main problem.
- Follow this instructions on the packets of plant feed so that you don't over feed the plants.
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