POTASSIUM DEFICIENCY INDICATORS
Certain weeds indicate a soil rich in potassium.
These are march mallow, knapweed, wormwood, opium poppy, fumitory, russian
thistle, tansy and sunflower. Red clover, however, is a good indicator of
potassium deficiency. It will disappear with increasing acidity.
Tobacco takes up potassium in
its leaves and stalks and, as a result, is a good plant for composting
provided it has
not been sprayed with synthetic chemicals. Vegetables that like potassium are celeriac