Carpathian Walnut
Juglans regia 'Carpathian'
The ultimate cold-hardy walnut that brings nut production to northern climates previously too harsh for English walnuts. Originally from the Carpathian Mountains of Eastern Europe, these hardy trees can withstand temperatures down to -25°F while still producing quality nuts. Each tree grown from seed develops unique characteristics, making every Carpathian walnut tree a one-of-a-kind addition to cold-climate homesteads.
Harvest
160-190d
Days to harvest
Sun
Full sun
Zones
3–7
USDA hardiness
Height
40-60 feet
Planting Timeline
Showing dates for Carpathian Walnut in USDA Zone 7
All Zone 7 nut-tree →Zone Map
Click a state to update dates
Carpathian Walnut · Zones 3–7
Growing Details
Zone-by-Zone Planting Calendar
Complete Growing Guide
Soil: Clay, High Organic Matter, Loam (Silt). Soil pH: Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Height: 40 ft. 0 in. - 60 ft. 0 in.. Spread: 40 ft. 0 in. - 60 ft. 0 in.. Spacing: more than 60 feet. Maintenance: Medium. Propagation: Grafting, Layering, Seed, Stem Cutting. Regions: Mountains, Piedmont.
Harvesting
The fruit is a round nut that is encased in a green, semi-fleshy husk that turns brown. The nut measures up to 2 inches long. It matures in the fall and has a very thin wrinkled shell. The nut is thin, smooth, and has shallow furrows. The meat of the nut is creamy white and sweet.
Color: Green. Type: Nut. Length: 1-3 inches. Width: 1-3 inches.
Garden value: Edible, Showy
Harvest time: Fall
Bloom time: Spring
Edibility: The nuts are edible. They may be eaten fresh, roasted, and salted.
History & Origin
Origin: Europe to Central Asia
Advantages
- +Disease resistance: Drought
- +Attracts: Moths, Small Mammals
- +Wildlife value: Fruit is eaten by small mammals. This plant supports Hickory Horndevil (Citheronia regalis) larvae which have one brood and appear from May to mid-September. Adult Hickory Horndevil moths do not feed. Also a larval host plant to the Luna moth.
- +Edible: The nuts are edible. They may be eaten fresh, roasted, and salted.
Companion Plants
Plant Together
Clover
Fixes nitrogen in soil and provides ground cover to suppress weeds
Comfrey
Deep taproot brings up nutrients and leaves make excellent mulch
Chives
Repels aphids and other pests while attracting beneficial insects
Nasturtium
Acts as trap crop for aphids and adds organic matter when composted
Wild Ginger
Thrives in walnut's partial shade and provides natural ground cover
Elderberry
Tolerates juglone and provides beneficial insect habitat
Black Cherry
Compatible with juglone and attracts birds that control insect pests
Rye Grass
Tolerates juglone well and prevents soil erosion under canopy
Keep Apart
Tomato
Highly sensitive to juglone toxin produced by walnut roots
Apple Trees
Susceptible to juglone poisoning causing wilting and stunted growth
Pine Trees
Juglone toxicity causes needle yellowing and eventual death
Nutrition Facts
Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #2346394)
Pests & Disease Resistance
Resistance
Excellent cold hardiness, good general disease resistance
Common Pests
Fewer pest issues in northern climates, occasional aphids and scale
Diseases
Generally disease resistant, occasional walnut blight in humid conditions