Walnut (Juglans regia)

Common names:
Give a thumbs up Walnut
Give a thumbs up English Walnut
Give a thumbs up Carpathian Walnut
Give a thumbs up Persian Walnut

General Plant Information (Edit)
Plant Habit: Tree
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 9b
Plant Height: over 40 feet (12 m)
Plant Spread: over 40 feet (12 m)
Leaves: Deciduous
Fruit: Showy
Edible to birds
Fruiting Time: Fall
Flowers: Inconspicuous
Flower Color: Green
Other: green
Bloom Size: Under 1"
Flower Time: Spring
Underground structures: Taproot
Uses: Shade Tree
Edible Parts: Seeds or Nuts
Fruit
Eating Methods: Raw
Cooked
Dynamic Accumulator: P (Phosphorus)
K (Potassium)
Ca (Calcium)
Propagation: Seeds: Self fertile
Stratify seeds
Sow in situ
Will not come true from seed
Pollinators: Wind
Containers: Not suitable for containers
Miscellaneous: Monoecious
Conservation status: Near Threatened (NT)

Conservation status:
Conservation status: Near Threatened
Just prepared these 40 nuts for germination in a big pot. I cover

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Comments:
Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Jun 24, 2019 7:51 AM

This Common or Persian or English Walnut is native from southeast Europe into China. It is the walnut responsible for large quantities of nuts for the market. Most are grown in the USA in California, including Zone 10 in the West, not in the East. I remember one, what we called the English Walnut, in the west suburbs of Chicago, IL that was full-grown in the backyard of a large, old house not far from where I lived. It must have been the more cold hardy variety called the Carpathian, from eastern Europe, there in Zone 5a. I've seen two trees at an old estate that is now a public park in central Chester County, PA doing well. The compound leaves of this species are 8 to 16 inches long, usually with 7 to 9 leaflets, 5 to 13 possible. The leaflets have toothless margins and are sort of rounded unlike American walnut species or hickories. The terminal leaflet is the largest. The round nuts are 1.5 to 2 inches in diameter and are surrounded by a thin, green husk. The tree tends to be rounded in habit and gets to about 70 feet high with a 3 feet diameter trunk. It is only infrequently found planted in the Midwest and Eastern US.

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Plant Events from our members
AndreA33 On June 5, 2016 Transplanted
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Discussion Threads about this plant
Thread Title Last Reply Replies
Unidentified Tree by Altheus May 30, 2019 8:33 AM 13
Leaf die off in pot-grown Walnut tree by Sarah2dogs Jul 1, 2018 4:59 AM 3
What is this fruit? by chrisx123 Feb 12, 2017 4:33 PM 5
What fruit tree is this? by Treeguy2012 Jul 4, 2016 9:51 AM 3
The Monster Park at Bomarzo by JuneOntario Jun 6, 2016 8:43 AM 2

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