Description
Northern Spy is a 19th-century American heirloom valued for a crisp, juicy apple with a balanced sweet-tart flavor, equally suited to fresh eating, baking and cider. It has long stood as a parent behind many modern commercial apples.
The fruit is prized for how well it keeps, holding in storage for three months or more, longer than most apples.
Overview
- Balanced sweet-tart flavor, crisp and juicy
- Excellent fresh eating, baking and cider apple
- Late-season ripening, long storage life
- Self-sterile; flowering group 5
- American heirloom, parent of many modern apples
Growing Details
Latin Name: Malus domestica ‘Northern Spy’
Site and Soil: Full sun; well-drained soil
Chill Requirement: Estimated 1,000 hours
Hardiness:Hardy to USDA Zone 4
Rootstock: M-106 (semi-dwarf)
Bearing Age: 1 to 3 years
Size at Maturity: 12-15′ tall and wide – easily maintained smaller with pruning.
Flowering Group: Group 5 (late bloom)
Ripening Time: Late season; October into November
Pollination: Self-sterile; needs another late-blooming apple nearby
Pests & Diseases: Susceptible to scab, fire blight and cedar-apple rust; benefits from routine spray care
Yield: Heavy producer once mature
Additional Notes
- Grower’s Insight: Northern Spy can run biennial without thinning, so thin in a heavy year and the reward is fruit that stores for months.
- Regional Insight: Cold hardiness and a long-keeping late crop suit the Northeast, Upper Midwest and other cold-winter regions especially well.
- Explore more apple trees in our collection: Apple Trees



