Slow-release fertilisers
Feed pots and hanging baskets all summer
The best slow-release fertilisers only need applying once to feed plants all summer. Our trial results reveal the best brands, and the ones to avoid
In our full review you can see...
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Best Buys
Which? reviews Best Buy slow-release fertilisers for feeding your plants in pots and containers
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Full test results
Which? compares the best and worst slow-release fertilisers to use in containers
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How we test
Which? explains how we test slow-release fertiliser granules on container-grown plants
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