Plants – Herbaceous ornamnental flowering plant
Plant Patent
2000-06-27
2002-05-21
Campell, Bruce R. (Department: 1661)
Plants
Herbaceous ornamnental flowering plant
Plant Patent
active
PP012637
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention presents a new and distinct cultivar of
Physostegia virginiana
and will be referred to hereafter by the cultivar name ‘Miss Manners’. ‘Miss Manners’ is a new hardy Obedient Plant, a perennial herb grown for landscape use.
The new cultivar was discovered by the inventor in his nursery in Hubbardston, Mass. in 1988 in a mixed population of open pollinated seedlings derived from
Physostegia virginiana
‘Rosea’. ‘Miss Manners’, was selected as unique for its clump-forming growth habit, its compact, sturdy growth, its ability to remain upright in bloom and for its long season of bloom. The new cultivar can be readily distinguished from all other cultivars of
Physostegia virginiana
by the characteristics that are described hereafter.
‘Miss Manners’ differs from its parent plant
Physostegia virginiana
‘Rosea’ (unpatented) in that ‘Rosea’ has a taller, non clump-forming habit of growth and rose-pink blossoms. The closest comparative is
Physostegia virginiana
‘Summer Snow’ (unpatented) with a similar white flower color. Although reported to spread less rampantly than the species, ‘Summer Snow’ has a vigorous, spreading growth habit, tends to flop when in bloom and is generally 6″ taller as compared to ‘Miss Manners’ (Table 1).
The first asexual propagation was done by division, by the inventor in September of 1991 in Hubbardston, Mass. Subsequent asexual propagation of the new cultivar has been accomplished by division, stem cuttings and tissue culture. The characteristics of this cultivar have been determined to be stable and reproduce true to type in successive generations.
SUMMARY OF THE INVENTION
The following traits have been repeatedly observed and are determined to be the characteristics of the new cultivar. The combination of these traits distinguish the cultivar from all others in commerce.
1. ‘Miss Manners’ has a clump-forming growth habit which is unique and unlike any other Obedient Plant in the trade. Its rhizomes are very short, so it does not spread rapidly as do other known cultivars.
2. The plant habit is compact. ‘Miss Manners’ is generally 6″ shorter than ‘Summer Snow’.
3. The pure white flowers of ‘Miss Manners’ are borne in profusion and rebloom occurs over a long time period from axillary buds which regularly form down the length of the flowering stem. Secondary axillary bloom spikes form at the leaf nodes of the primary axillary spikes, producing a concentration of bloom. The axillary bloom spikes of ‘Summer Snow’ do not regularly form secondary axillary bloom spikes from their leaf axils, resulting in a narrower, less floriferous bloom spike.
4. The sturdy stems remain erect and do not tend to flop while in bloom.
Campell Bruce R.
Para A
Probst Darrell R.
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