Main Crop Seed Potatoes
Grow Large, Floury Potatoes for Roasting, Mashing & More from Johnstown Garden Centre
Mid-Season Favourites
Main crop seed potatoes are the best choice for large, high-yielding harvests, ready for picking from late summer into autumn. Taking around 18-20 weeks to mature, these varieties produce larger, floury potatoes, perfect for roasting, mashing, baking, and making chips.
At Johnstown Garden Centre, we stock a wide selection of premium main crop seed potatoes in 2kg packs, offering excellent storage potential so you can enjoy homegrown potatoes well into winter. With varieties suited for containers, raised beds, and traditional plots, main crop potatoes are an essential staple for every vegetable garden.