When To Harvest Potatoes In Colorado

Colorado Ripening Dates for Fruits and Vegetables

What month should you harvest your potatoes?

New Potatoes – When the plants begin to flower, usually sometime in July, you can start harvesting new potatoes by reaching into the side of the hill and taking a few tubers from each plant.

What happens if you don't harvest potatoes?

Once the plant reaches maturity, it ceases to be useful to the potatoes and dies. Tubers left in the ground experience no further growth, but their skins continue to thicken and harden, which extends the life of potatoes destined for storage.

How do you store potatoes after harvesting?

Store main crop potatoes in a dark, dry place for a week or two at 55° to 65° F with high humidity of 85 to 85 percent. After two weeks, potatoes that you want to store longer for winter use should be moved to a much cooler– 35° to 40°F—dark room, basement, or root cellar with moderate humidity and ventilation.

How long can you leave potatoes in the ground?

Once the plant dies, the potatoes are finished growing in size. However, the skin on the potato does harden and cure to make it stronger for storage. We recommend leaving the potatoes in the ground for about 2 weeks after the plants have died off.

How do you prune a potato bush?

Prune the plant back by one-third every fall or shape it into a tree to control growth, encourage blossoms, and maintain the desired shape. Wait for blooms to decline in the fall, or shear lightly to deadhead during the blooming season to encourage more flowers.

Will potato plants come back after a freeze?

In a case of major frost damage, the leaves and shoots above ground may not recover. However, according to the Iowa State University Extension, the potato plant will send up new shoots in 10 to 14 days. As long as the plant has enough stored energy, it should be able to regrow and eventually produce tubers.

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