Fruit and Nut

 

 
Home Fruit Nuts Ordering Special Offers Links Workshops Opportunities News Climate Change Contact
   
Heartnuts
   

Heartnuts (Juglans ailantifolia var. cordiformis) are a relative of the walnut native to Japan but were introduced into North America during the Nineteenth century. They are relatively uncommon in Europe but are hardier and more vigorous than walnuts, less prone to disease and more tolerant of wet climates. They have the potential to do very well in Ireland. Young trees on our trial site near Westport have produced their first crop at five years.

The nuts are relatively hard to shell, but all the cultivars offered here have improved shelling capability. The trees offered are not grown from nut but are propagated vegetively by grafting fruiting scions of known cultivars onto seedling rootstocks. The cultivars all originate in Canada or the northern parts of United States.

Unlike trees raised from nut, which are unreliable in terms of nut production and quality, and take many years to reach nut bearing age, grafted trees always come true to form and begin cropping at a young age. The trees are generally not self-fertile so more than one cultivar should be planted.

Heartnuts grow into big trees so should be spaced at 10-12 meters.

Young grafted trees 30-45cm, 40-70mm, 70-100cm and 100cm-140cm

Barerooted trees (supplied December 2017-April 2018)
  Unit Price (euro)
1 tree 2 trees 3-9 trees 10-49 trees 50-199 trees 200 trees+
Heartnut named varieties 30-45 cm
26.00
24.00
22.00
20.00
17.00
P.O.A.
Heartnut named varieties 45-70 cm
35.00
32.00
29.50
27.00
23.50
P.O.A.
Heartnut named varieties 70-100 cm
42.00
38.00
35.00
32.00
28.00
P.O.A.
Heartnut named varieties 100-140 cm
52.00
47.50
43.50
40.00
P.O.A.
P.O.A.
Heartnut named varieties 140-180 cm
70.00
63.00
56.00
50.00
P.O.A.
P.O.A.

 

Cultivars

Campbell CW1
Canadian variety. Medium to large nut, top performer, nuts tend to come out in halves. Vigorous grower with some resistance to late frosts.
Available November

Campbell CW3
Canadian variety. Medium sized nut, heavy producer, later cropping than CW1.
Available November

Campbell CW4
Canadian variety. Medium sized nut, moderate producer, later cropping than CW1.
More compact in growth. Available November

Grimo Manchurian
Canadian variety. Medium sized nut, compact tree, possibly more suitable for smaller gardens. Very winter hardy but a little susceptible to late spring frosts.
Available November

Imshu
Bred from Schubert and unnamed Korean seedling . Small to medium nut, moderate to heavy producer, usually cracks out whole. Some resistance to late frosts.
Available November

Kalmar
Swedish variety developed from mature tree found growing in Eastern Sweden. Vigorous tree. Winter hardy but a little susceptible to late spring frosts.
Available November

Schubert
US variety. Parent of Imshu. Medium sized nut, moderate producer. Vigorous tree, good resistance to late frosts.
Available November

Simcoe
Large nut, good cracker, productive.
Not available 2016/17

Stealth
Medium sized nut, easy cracker.
Not available 2016/17

 

Supply of heartnuts is limited. All varieties listed as being available 2016/17 will sell out very early

 

Heartnut seedlings

Two year old plants raised at our own nursery from selected seed from Ontario province, Canada. Unlike the named cultivars of Juglans ailantifolia var. cordiformis, these seed-grown trees are very unlikely to produce reliable crops of nuts. Vigorous and strong, they will grow into fine large specimen trees suitable for timber production. The trees may also be used for rootstock for grafting purposes.

50-80cm €9.50 ea Available November

Order form