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DAHLIA fertilizers .


Dahlias benefit from a low-nitrogen liquid fertilizer (similar to what you would use for vegetables) such as a 5-10-10 or 10-20-20. You should Fertilize after sprouting and then every 3 to 4 weeks from mid-summer until early Autumn. Do NOT over-fertilize, especially with nitrogen, or you risk small/no blooms, weak tubers, or rot.

I recommend using this one by bulbs direct if you can

https://bulbsdirect.co.nz/collections/garden-essentials/products/dahlia-food-fertilizer-1kg-or-2kg

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