Weeds as Soil Indicators

The types of weeds growing in your garden are not always completely bad. Weeds act as soil indicators, letting you know what type of soil you have when they grow in your garden. Weeds usually cause problems when gardening, but did you know weeds can also act as soil indicators, informing you of what type of soil you have in the garden?          

Acid soil: Ox-eye daisy (Chrysanthemum leucanthemum), curly dock (Rumex crispus), sheep sorrel (Rumex acetosella), sow thistle (Sonchus species), prostrate knotweed (Poly-gonum aviculare), lady’s-thumb (Polygonum persicaria), wild strawberries (Fragaria species), plantain (Plantago major), rough cinquefoil (Potentilla monspeliensis), silvery cinquefoil (Potentilla argentea), hawkweeds (Hieracium aurantiacum and pratense), knapweeds (Centaurea species).

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