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Heartnut Juglans ailantifolia var. cordiformis (5 = Yield (Like a deep…
Heartnut
Juglans ailantifolia
var. cordiformis
1 = Subspecies of the (hardy) Japanese walnut
2 = Beautiful fast growing tropical looking tree, 15m high by up to 15m spread
Harvesting
Grafted trees produce after 5 years otherwise 6-8 years
Yields can be up to 35 kg from one tree leading to 2 tonnes / acre
Need to remove husks quickly to prevent rotting
Dried nuts can store for up to 4 years
It has long male yellow green catkins & yellow vertical cluster of female flowers
4 = Nuts are in a green husk and shaped like a heart !
5 = Yield
Like a deep (750mm) fertile well aerated soil
Site prone to late frosts are a risk to flower damage
Shelter = from prevailing winds will increase yield
Pollination = 2 or more varieties grown together
Spacing - 10-20 m depending on situation & soil type
6 - Pests, Diseases
Disorders
Choose varieties resistant to walnut blight + good spacing can helps with this
Prune to reduce low branches where frost in a problem close to the ground or for animal underneath
Crows & squirrels can strip the tree + sometimes the codling moth can damage nuts (which hens can reduce their numbers)
Protect young trees from hares and rabbits
Good Varieties
Campell, CW1,3 & 4. Imshu, Stealth
