Potatoes & Potash

Ray Dunford asked 11 years ago

I’m growing potatoes (2nd earlies) in tubs (approx 18” in diameter and 24” high) and in each tub I have between 2 & 3 plants. I’m told I can start adding potash now but I have no idea in what quantity per tub above or indeed how often. Is a teaspoon once a week too much?

1 Answers

Gerry Daly Staff answered 4 years ago
If fertilizer was mixed in at planting, they probably don’t need any more feeding, but you could water with Miraclegrow or similar, but only to moist compost. Solid fertilisers are very tricky to use in pots and easily overdone.