Long
Quercus × warei (Q. robur f. fastigiata × Q. bicolor)
The record
- Parentage
- Quercus × warei (Q. robur f. fastigiata × Q. bicolor)
- Origin
- Earl Cully · Jacksonville, Illinois; the seed traces to chance seedlings off the University of Missouri campus at Columbia · patented 2002, twenty-eight years after the acorns were collected
- Rights
- patented — US Plant Patent PP12,673, granted 2002. Sold under the Regal Prince® mark. Check the current term before propagating.
- Also known as
- Regal Prince®
- Form
- Columnar to narrow-oval
- Resistance
- Good resistance to powdery mildew and to borers
Description
A hybrid of the columnar English oak with swamp white oak — one parent supplying the narrow habit and the urban tolerance, the other the mildew resistance the English oak badly needs.
The number to sit with is twenty-eight. Acorns collected, seedlings grown, one plant picked out, and twenty-eight years between that collection and the patent. Read next to a hazelnut programme releasing cultivars from crosses made twelve years earlier, it explains most of what this file is: not that nobody has thought to breed oaks for acorns, but that a working life holds very few oak generations. Anyone who plants a seedling oak block for selection is doing the work for somebody else, which is a good argument for doing it.
The hybrid group is named for George Ware, the dendrologist and former research director at the Morton Arboretum.
Where to find it
No source recorded. That does not mean the cultivar is unavailable, only that this record does not yet name a nursery carrying it. Point us at one and it goes in.