Plants – Broadleaf tree
Plant Patent
2002-07-08
2004-08-24
Campell, Bruce R. (Department: 1661)
Plants
Broadleaf tree
Plant Patent
active
PP015105
ABSTRACT:
Botanical designation: The Latin name of this novel cultivar is
Betula nigra
L. with the cultivar name ‘Summer Cascade’.
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of Betula grown for use as a large shrub to medium sized tree.
‘Summer Cascade’ is a seedling of unknown parentage. The new cultivar was discovered by the inventor in a cultivated area of Harmony, N.C., in 1996 from a group of seedlings originally planted in 1992. ‘Summer Cascade’ is distinguished from all other Betula known to the inventor by its mounding habit and unique pendulous form and was selected by the inventor based on the seedlings unusual mounded habit with shoots from successive years forming arching layers of branches.
Dr. Thomas Ranney at North Carolina State University, Fletcher, N.C., USA first propagated ‘Summer Cascade’ by asexual grafting in February 2001. The characteristics of the new cultivar have been determined stable and are reproduced true to type in successive generations.
SUMMARY OF THE INVENTION
The following traits have been repeatedly observed and represent the characteristics of the new Betula cultivar ‘Summer Cascade’. These traits in combination distinguish ‘Summer Cascade’ from all other commercial varieties known to the inventor. ‘Summer Cascade’ has not been tested under all possible conditions and phenotypic differences may be observed with variations in environmental, climatic and cultural conditions.
1. Betula ‘Summer Cascade’ exhibits a unique pendulous form.
2. Betula ‘Summer Cascade’ exhibits flexible new shoot growth.
3. Betula ‘Summer Cascade’ exhibits a mounded habit when grown free-form.
4. Betula ‘Summer Cascade’ exhibits arching layers of branches in successive years when grown free-form.
5. Betula ‘Summer Cascade’ may be staked or trained to different shapes including a straight or sinuous trunk with pendulous branches.
6. Betula ‘Summer Cascade’ is 1.8 meters tall and 3 meters wide at 10 years when grown free-form.
7. Betula ‘Summer Cascade’ is a large shrub to medium size tree suitable for landscape use.
8. Betula ‘Summer Cascade’ is strongly vigorous.
9. Betula ‘Summer Cascade’ is expected to be hardy in USDA Zones 4-9.
REFERENCES:
patent: PP4409 (1979-04-01), Cully
patent: PP6192 (1988-05-01), SaBell
patent: PP10963 (1999-06-01), Cheng et al.
patent: PP12400 (2002-02-01), Pinney, Jr.
patent: PP12749 (2002-07-01), Heims
patent: PP12766 (2002-07-01), Pinney, Jr.
patent: PP12767 (2002-07-01), Pinney, Jr.
patent: PP12768 (2002-07-01), Pinney, Jr.
Allen Daniel A.
Allen John D.
Campell Bruce R.
Haas W C
Shiloh Nursery
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