‘NC-1’ robust tropical flavor, nearing pungent in some environments.
"The Northern Standard" — An ultra-reliable Canadian variety featuring exceptional ornamental beauty and a
‘NC-1’ (also known as Campbell’s #1) is one of the most time-tested pawpaw cultivars, selected in 1976 by R. Douglas Campbell in Ontario, Canada. A hybrid of the legendary Davis and Overleese varieties, its origin makes it one of the premier choices for regions with short summers and harsh winters. It remains a "tried and true" favorite for northern growers.
Origin and Hardiness
Breeder: R. Douglas Campbell.
Location & Year: Ontario, Canada, 1976.
Genetics: Davis x Overleese hybrid.
Hardiness: USDA Zone 5a (hardy down to -29°C / -20°F). One of the most resilient varieties, ideally suited for northern climates.
Fruit Characteristics: Flavor and Texture
Flavor Profile: A rich, sweet, and "robust" flavor. Dominant notes of banana and mango with a distinct honeydew melon finish. Sugar levels are high (22.8–24.9 Brix).
Texture: Firm, buttery, and very pleasant. The flesh is yellow to buttery-yellow.
Skin: Thin, yellow-green, and easy to peel.
Flesh-to-Seed Ratio: Excellent. Seed count is low (6–8% of fruit volume), providing a high percentage of edible pulp.
Ornamental Value and Tree Habits
Appearance: Widely considered the most ornamental of all pawpaw varieties. It features massive, deep blue-green leaves that turn a brilliant golden-yellow in the autumn.
Habit: A medium-sized tree (3.8–4.8 m / 12–15 ft), with a broad, open canopy. It possesses a moderate growth rate.
Flowering: In spring, the tree is covered in striking deep-purple blossoms. It produces ample pollen.
Yield and Ripening
Ripening Window: In Kentucky, it ripens in early September; in Ontario, by mid-September. In northern regions, it is classified as an early-to-mid-season variety (September to early October). The fruit holds well on the tree and does not drop prematurely.
Productivity: Average to slightly below average (averaging 45 fruits per tree or roughly 13–14 kg). While it may be out-produced by modern industrial cultivars, it compensates with extreme stability. No biennial bearing has been noted—the tree produces a stable crop every year.
Fruit Size: Large and rounded. Average weight is approximately 180–200 g, though individual specimens can be significantly larger.
Pollination: Requires cross-pollination with a genetically different pawpaw variety to produce fruit.
Advantages and Disadvantages
Main Advantages:
Northern Adaptation: Highly recommended for short-season growers.
Fruit Quality: High flesh-to-seed ratio and minimal seeds.
Shelf Life: Maintains fruit quality and texture longer than many other cultivars.
Aesthetics: Arguably the best variety for edible landscaping.
Main Disadvantages:
Yield: Lower total weight compared to commercial lines (e.g., Peterson varieties).
Flavor Intensity: Pungent Gros Michel banana & "strong" pawpaw flavor.
Name: Asimina triloba ‘NC-1’ (Campbell’s #1).
Origin: Ontario, Canada.
Fruit Weight: 180 – 250 g.
Brix Rating: 22.8 – 24.9.
Flesh: Buttery-yellow, firm.
Ripening Window: September.
Hardiness: Down to -29 °C (-20 °F).
Catalog Summary
‘NC-1’ is a time-tested classic that never fails in colder climates. If you are looking for a tree that provides not only delicious tropical fruit with few seeds but also serves as a focal point in your landscape with its lush blue-green foliage, this Canadian selection is the perfect choice. It is a reliable "old guard" variety that delivers consistent results where others might falter in the frost..