New potatoes are more than just a treat for early summer, you can enjoy them into the winter too. Started now, they will be ready to eat by Christmas. Here’s how I’m growing mine.
Special seed potatoes are available online, in catalogues and in garden centres now. I’m growing Charlotte and Pentland Javelin which are favourites for taste. You can also buy Nicola and Maris Peer. These are cold stored potatoes, primed ready to plant in August. You can also hold back some of your spring-bought seed potatoes, but you have to keep them in the bottom of the fridge until now, before planting.
Royal Horticultural Trials at Wisley showed that potatoes grow best in bags rather than rigid-sided plastic plant pots. You can buy special potato sacks, but I’m re-using compost bags. It’s a good way to recycle them.
I’m using Dalefoot salad and vegetable compost. Roll the tops down to form a collar, spike the bags to give good drainage, and fill them with 30cm of loosened compost.
Sit the seed potatoes on top of the compost. Ensure they are not touching, place them about 20cm apart.
Cover the potatoes with 5cm compost and water well. Place outdoors on a sunny patio. As the shoots start to grow, cover them with more compost and roll up the compost collar. Keep doing this until there is a 5cm gap left at the top for watering. What you are doing is “earthing up” the potatoes, without all the effort involved on growing them in the ground.
Move the bags, before the first frosts, into a greenhouse, porch or conservatory. By now the top growth will have died back and can be removed. Stop watering and keep the potatoes stored in the dry compost until you want to cook them. Because they have not been harvested and exposed to sunlight and air, the potatoes will not form hard skins and will retain that new potato taste and texture. In the past growers would have stored them in damp sand. My grandfather used to make “clamps” for vegetables such as potatoes and carrots, when vegetables had to last right through the winter without the availability of fridges and freezers.
I use soil association-approved Dalefoot Compost which is made from sheeps wool and bracken. It gives farmers in the Lake District an income for their wool which might otherwise go into landfill. It’s 100 percent natural and peat free, and contains a source of potash which makes fruit and flowers grow well.
My summer potatoes did well this year. I’m hoping for a small but tasty crop of new potatoes just in time for my Christmas dinner.
After planting my potatoes, I am sitting in my summerhouse with Grace cat, enjoying sunny weather and 23C temperatures, thinking of winter days ahead. I’m sure those tasty treats will be so welcome when the days are cold and wet.
You can listen in to my 10 minute gardening tips during BBC Gardens Hour today at 1.40.47 on the timeline on Sounds https://www.bbc.co.uk/sounds/play/p07hst9m Each week we try something new, do pruning, take cuttings, grow something from seed, help wildlife. Sometimes our projects work, sometimes they fail, but it’s a lot of fun trying, aiming to get the best from our garden plots.
Links: Seed potatoes https://www.amazon.co.uk/Taylors-Autumn-Planting-Potatoes-Christmas/dp/B008M4MHFC
Dalefoot compost : https://www.dalefootcomposts.co.uk/
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