Shubert have rated highly for cracking quality, nut quality and productiveness.

Picking season: late September
Fruit size: medium
Vigour: vigorous tree
Growth habit: wide spreading canopy
Start to bear fruit: you should get some nuts after about 3-5 years
Cropping: medium
Bearing regularity: regular
Fertility: Heartnut trees are only partially self pollinating. This means that two or more seedlings or different varieties should be planted.
Cold hardiness: hardy to zone 4 and is not frost tender
Suitable for organic or no-spray culture: yes
General disease-resistance: very good