Hosta plants don't eat much soil, but a few fertiliser applications will help. Particularly if you want them to thrive in the summer heat.
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Hostas should be fertilised in early spring, early summer, and late summer after blooming. Applications meet different plant needs.
As mentioned, hosta plants' tall, wispy blooms use a lot of energy. Losing energy can make hostas look bad by midsummer. Especially if blooms are left on the plant too long.
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One of the best ways to keep your plant's foliage healthy into late summer and autumn is to remove blooms and stems as they fade. They steal energy if left to rot on the plant. Energy needed for healthy foliage.
Last but not least, where you grow hostas can affect how healthy their foliage is all season.
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Place hosta plants in the best spot for success. Hostas like shade. The type of sunlight matters most, but they can tolerate some. Hosta plants thrive in morning or evening sunlight.
Although not heavy soil feeders, hosta plants benefit from fertilisation. Especially when applied when they need it most. Hostas need early spring and midsummer applications.
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Slow-release fertilisers feed roots and boost early foliage growth in spring. Early growth helps form healthy bloom sets.