Best Bonsai Fertilizers

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Bonsai grow in very little soil, and most bonsai mixes hold few nutrients on their own. Feeding is not an extra, it is how the tree gets what open ground would normally supply. Products vary in their nutrient ratio, in whether they release slowly or dissolve at once, and in how they behave in free-draining substrate. Timing varies too, since a tree in development wants more than one being refined. We weighed nutrient balance against how well each product stays put in open mix rather than washing straight through the pot. Smell, mold and whether pellets attract animals also mattered, since many trees live near a back door. Balanced liquid feeds suit growers who want control and frequent small doses. Solid cakes and pellets suit anyone who would rather feed once and let the watering can do the rest.