Knowledgebase
How do I plant my seed potatoes?
Posted by Dobies Staff on 17 February 2014 01:35 PM

When your seed potatoes arrive unpack them and place them in trays (an egg boxworks well or you can use a wooden tray) in a light, cool, airy frost free place to develop the sprouts prior to planting. This will enable your seed potatoes to grow much faster once they are planted in the ground. The pre-sprouting is a process called chitting.

Dig a trench about 10cm (4") deep using our Garden Ridger is the easiest way to do this. Place the seed potatoes in the bottom with the sprouts facing upwards. Fill the trench to cover the seed potatoes and a top dressing of Potato Fertiliser can be applied to boost growth.

As the shoots emerge it is important to "earth up" (cover them with soil) to protect them from frost which will cause the shoots to blacken and delay cropping. During prolonged periods of dry weather you will need to water regularly to enable the tubers to form. When the stems have grown to 25cm (10") above ground level they should be "earthed up" again to prevent the tubers near the surface turning green.

When to lift will be dependent on the type of potatoes you have planted, please see the table below. Lift early potatoes when the flowers start to open and the tubers are the size of large eggs. Maincrop varieties potatoes should generally be left at least two weeks after the leaves and stems have withered, cut the stems just above soil level to prevent diseases such as blight getting into the crop.

Lift the tubers gently from underneath with a Potato Fork or with our Potato Harvesting Scoop. The lifted potatoes should be left on the surface of the soil for a couple of hours to allow the skins to cure before being stored in paper or Hessian Sacks. Potatoes stored in plastic bags will sweat and begin to rot very quickly.

 

 

Types of potato Planting time Planting distance in the row Distance between rows Approx. time from planting to harvest
         
First Earlies February onwards 30cm (12") 60cm (24") 10 weeks
Second Earlies March onwards 37cm (17") 75cm (30") 13 weeks
Maincrop March onwards 45cm (18") 75cm (30") 20 weeks
Late Season June-JUly 30cm (12") 60cm (24") 11 weeks
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