Get your seed potatoes from your grocer's now...

Time to look for sprouting potatoes in your local produce section for planting! Be sure to get organically grown potatoes (ones grown conventionally can be treated with a chemical sprout retardant). Choose ones that are about the size of a large chicken egg. Also find ones that are already showing the first signs of sprouting. For more in-depth information, Sprouting potatoes? What to do.

The yellow one is showing the first signs of sprouting: tiny yellow sprouts at the site of the 'eyes'. That's what the red one looked like about a week earlier. 

One week later, both potatoes continue to sprout.

I have kept these sprouts under a towel while they are sprouting, in a cool (not cold) space. Once you expose them to light, they will pause extending their sprouts. Be careful handling them as the sprouts grow as they can be fragile at this stage.

Once sprouts are about one inch long, we move them to a room where they receive _indirect_ sunlight. This will 'chit' them (help them store up the sun's energy for better growing). Be sure they _aren't hit_ with direct sun.

The potatoes will turn greenish and the sprouts will stiffen. Once they are chitted, proceed with your favorite planting methods.

Here's a row of potatoes planted in our greenhouse about a month ago. Potato leaves are very frost-sensitive. We start early batches in our greenhouses in February and March (Oregon, USA, Zone 7b) and later batches in April and May once the threat of frost is past.

Happy planting!