They also need extra moisture to keep from being stressed. In addition to irrigation, a thick mulch will help conserve moisture and keep the root zone cool. Finally, filberts need soil that is slightly acid. A soil pH of 5.5 to 5.7 is about right. If soil pH is too high, the filbert cannot pick up certain elements such as manganese and phosphorous.
Filberts are sensitive to herbicides.
It was a controlled cross of Faroka and Royal. Kernel flavor is excellent. The tree has grown in lower Michigan for ten years and is vigorous and winter hardy. Ripening date is a little later than average. The kernel quality is equal to, or better than anything available.