Buxus plant named ‘Monrue’

Details Buxus plant named ‘Monrue’ Buxus plant named ‘Monrue’

2003-12-01

2004-10-19

Bell, Kent (Department: 1661)

Plants

Shrub or vine

Plant Patent

active

PP015243

ABSTRACT:

Botanical classification/cultivar designation:
Buxus sempervirens
cultivar Monrue.
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of
Buxus
, botanically known as
Buxus sempervirens,
commercially known as Boxwood, and hereinafter referred to by the name ‘Monrue’.
The new
Buxus
is a naturally-occurring whole plant mutation of the
Buxus sempervirens
cultivar Graham Blandy, not patented. The new
Buxus
was discovered and selected by the Inventor in a controlled environment in Dayton, Oreg. in June, 1995, as a single plant within a population of plants of the cultivar Graham Blandy.
Asexual reproduction of the new
Buxus
by cuttings taken in a controlled environment in Dayton, Oreg., since the fall of 1998, has shown that the unique features of this new
Buxus
are stable and reproduced true to type in successive generations.
SUMMARY OF THE INVENTION
The cultivar Monrue has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment and cultural practices such as temperature and light intensity without, however, any variance in genotype.
The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Monrue’. These characteristics in combination distinguish ‘Monrue’ as a new and distinct cultivar of
Buxus:
1. Upright and columnar plant habit.
2. Vigorous growth habit.
3. Freely branching habit and short internodes, dense and bushy plant form.
4. Dark green foliage color that is retained throughout the year.
5. Relatively resistant to root rot pathogens common to
Buxus.
Plants of the new
Buxus
differ from plants of the parent, the cultivar Graham Blandy, in leaf coloration as plants of the cultivar Graham Blandy do not retain their green coloration during the winter. In addition, plants of the cultivar Graham Blandy are not as resistant to root rot pathogens, such as
Phytophthora
, than plants of the cultivar Monrue.
Plants of the new
Buxus
can be compared to plants of the
Buxus
cultivar Handsworthii, not patented. In side-by-side comparisons conducted in Dayton, Oreg., plants of the new
Buxus
differed from plants of the cultivar Handsworthii in the following characteristics:
1. Plants of the new
Buxus
had shorter internodes and were denser and bushier than plants of the cultivar Handsworthii.
2. Lateral branches of plants of the new
Buxus
were more flexible and not as upright as lateral branches of plants of the cultivar Handsworthii.
3. Plants of the new
Buxus
had flatter and thinner leaves than plants of the cultivar Handsworthii.
4. Plants of the new
Buxus
had lighter green-colored fully expanded foliage than plants of the cultivar Handsworthii.

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