a soil that gives a pH reaction of 8.5 or above, found esp in dry areas where the soluble salts, esp of sodium, have not been leached away but have accumulated in the B horizon of the soil profile
Examples of 'alkaline soil' in a sentence
alkaline soil
They are easy to grow, preferring alkaline soil and full sun to light shade.
The Sun (2013)
Cast-forming worms usually prefer alkaline soil so making the soil more acidic helps.
The Sun (2012)
In alkaline soil, the canes may colour vivid shades of pink and orange.
Times, Sunday Times (2017)
They prefer neutral to alkaline soil, and they never need pruning.
Times, Sunday Times (2016)
It likes well-drained, alkaline soil in full sun and is best pruned in late-summer.
The Sun (2016)
Blue flowers will appear in acid conditions, pink inner florets in neutral to alkaline soil.
Times, Sunday Times (2016)
This is also why hydrangeas have blue flowers in acidic soil and pink flowers in alkaline soil.
Times, Sunday Times (2007)
Apply ericaceous fertilisers, containing chelated iron, if they are in neutral to alkaline soil and have pale green leaves.
The Sun (2009)
They need plenty of sun - six hours a day minimum - to flower well and prefer a well-drained, preferably neutral to alkaline, soil.
Times, Sunday Times (2010)
Dianthus prefer alkaline soil but will survive without much water, which could be important this summer.