When you are planning your garden, group plants which have similar needs together. You’re probably already doing this with plants that prefer sun or shade, for example growing sunflowers and zinnias together in a sunny spot, or various species of ferns on the shady side of the house. Grouping plants with similar water needs is called hydrozoning. For example: plant lettuce, rocket and spinach together, so you can water them at the same time, rather than dotting these thirsty vegetables around the garden.
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