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Sold in lots of 20 tablets, this slow-release fertiliser may be applied to water lilies and other aquatic plants at planting and then once per year in spring.
Three tablets may be used per 14L planting container, and they should be inserted one finger-length into the soil around the rhizomes.
Formula NPK favours flowering: 10-11-18+2MgO+TE.
The tablet form ensures that the nutrients stay in the mud and do not diffuse into the water, where they can encourage algae proliferation.