Winds NNE at 10 to 15 mph. Evening: Cloudy skies this evening will become partly cloudy after midnight. Low 44F. Winds ESE at 5 to 10 mph.
But it can take 70-90 or more for potatoes to mature. This depends on the variety. The potatoes can carefully be harvested at 7-8 weeks for a early harvest of small potatoes. For full grown potatoes you would harvest in the fall when the leaves turn brown. But it can take 70-90 or more for potatoes to mature.
HARVESTING NEW POTATOES: After 60 days or so, plants will flower and little tubers will begin to form on underground stems called stolons. Some varieties either bloom very late or not at all, so check for new potatoes after 65-75 days on plants that don't bloom. Gently probe around the base of the plant for developing tubers on the ends of stolons (some stolons are as long as 18in).