
Care & seasons
Watering hostas: how much, how often and when
Hostas need about 4 cm of water a week in summer, roughly 40 litres per square metre including rain. Water deeply at the base of the plant, preferably in the morning, whenever the top few centimetres of soil are dry. New plants, hostas under trees and hostas in pots need checking most often; a mulch keeps the soil moist for longer.
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