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Hostas have some pretty sweet perks – their big leaves can cover a lot of bare soil, and they’re cool with partial or even deep shade. But those big leaves also mean they’ve got a big surface area for water to evaporate from. So while plants in the shade usually need less watering, that’s not the case for thirsty hostas. As a general rule, giving them an inch of water per week will keep them healthy and thriving. Aim for a deep weekly soak rather than frequent sprinkles. You may need to water them more often during droughts or hot weather, and less often when it’s cooler and rainy. Where and when you water is important too. Water them in the morning to avoid losing too much to evaporation. And water at the base, not overhead, to keep their leaves dry and avoid encouraging mold and mildew. Drip irrigation or a soaker hose works well for this. Hecos/Shutterstock
Keep an eye on your hosta’s leaves – if they’re developing brown edges, that’s a sign they need more water. But be careful, brown areas between the veins could mean nematodes instead. Yellowed or browned leaves can also mean they’re getting too much sun. Stick your finger in the soil near the base – if it feels dry, time to water. Hostas in pots or under shallow-rooted trees will dry out faster too, so they may need more frequent watering. Mulching can help, but don’t go overboard or you’ll create a slugs’ paradise. Finally, different hosta varieties have different watering needs, so know your plant and adjust accordingly. Blue hostas, for instance, need more shade and less water than golden or yellow ones.
Clues that your hostas need watering
