Prairie Spy Apple

Overview

Prairie Spy is a cold-climate apple valued for its late-ripening fruit, strong storage qualities, and reliable performance in northern regions. It is often compared to Northern Spy types for its keeping ability and structure, but with improved suitability for colder continental climates.

History & Parentage

Developed in 1943 under the name Minnesota 1007 at the University of Minnesota's Fruit Breeding Farm in Excelsior, Minnesota (U.S.A.). Released in 1940. Likely an open pollinated seedling of Northern Spy .

Fruit Quality & Uses

The fruit is typically large, firm, and tart, with flavor that improves notably after storage. Luke really liked it when he tried it at Bob's Purvis' for the first time back in 2022. It had been in storage, however, and Bob noted that the flavor is bland off the tree but that it improves markedly in storage. Great keeper. 

Ripening Window

Prairie Spy ripens late in the season, generally in the fall, and benefits from full maturity to develop its best flavor and storage potential. In colder regions, this makes good site selection and sufficient growing season important.

Growth Habit & Spacing

Trees are generally vigorous with a traditional apple growth habit. Standard apple spacing based on rootstock applies, with wider spacing helpful for airflow and long-term tree health in colder, more humid spring conditions.

Pollination

Prairie Spy is not self-fertile and requires cross-pollination. Any compatible apple or crabapple with overlapping bloom will work, making it easy to pair within a mixed cold-climate orchard.

Cold Hardiness

Hardy to at least -40F making it a solid zone 3 apple. However, Ed Schultz noted that his Prairie Spy did not shut down at his location in Gallatin Gateway, which resulted in the tree succumbing to winter injury from severe early fall frosts.