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.
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 unpredictable in terms of nut production and quality, grafted trees always come true to form. 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 (60-100cm high) €40 ea
Cultivars
Campbell CW1
Medium to large nut, top performer. Pollinators: Campbell CW3, Simcoe, Stealth.
Campbell CW3
Medium sized nut, heavy producer, compact tree. Pollinators: Campbell CW1, Imshu
Fioka
Large nut, fairly good cracking. Canadian origin. Pollinators: most heartnuts but especially Campbell CW1 and Imshu
Imshu
Small to medium nut, moderate to heavy producer, usually cracks out whole meats. Pollinators: Campbell CW3, Simcoe, Stealth
Simcoe
Large nut, good cracker, Productive. Pollinators:Campbell CW1, Imshu
Stealth
Medium sized nut, easy cracker. Pollinators:Campbell CW1, Imshu
Heartnut seedlings
One 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 may not produce heavy crops of nuts but have much better prospects than seed-grown walnut. 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.
25-40cm €2.40 ea
To order heartnut seedlings, please refer to page 7 of the order form.
Availability
All heartnuts available November 2011
Delivery charges on grafted heartnuts
1-3 trees €15.00
4-7 trees €20.00
8-12 trees €25.00
Over 12 trees €28.00
Orders may be also collected by arrangement from our premises in Westport. Stocks are imported from North America and are very limited so early ordering is advised in order to avoid disappointment.
Additional ordering information
Please use the printable order form provided or simply list the items on a sheet of paper. Add up the total, including carriage if applicable. Do not forget to include your own address and phone number. Payment should be by cheque postal order or bank draft, made payable to the Sustainability Institute.
The Sustainability Institute
Cooloughra
Ballinrobe Rd
Westport
Co. Mayo
Republic of Ireland