'C. jackmanii' clematis References
Book (Oct 2001) Page(s) 228-229. Includes photo(s).
Book (2001) Page(s) 388.
Plant Introductions in the period 1800-1899
1862 Clematis x jackmanii (C. lanuginosa, C. x hendersonnii x C. viticella) Garden origin. Received the First-Class Certificate from the RHS in 1863. Thefirst of many cross-bred Clematis to be produced by George Jackman & Son of Surrey.
Book (1999) Page(s) 236.
Book (1995) Page(s) 62-63.
In Vita's day the Rose Garden contained few clematis varieties save for C.
'Jackmanii' trained on posts in one of the beds and a large C. montana var. rubens
on the Long Border wall, joined by C. montana var. Wilsonii
Book (31 Oct 1993) Page(s) 106. Includes photo(s).
Magazine (1945) Page(s) 34. Includes photo(s).
Clematis Jackmani, Jackman’s Clematis. A vine well known for its large, velvety purple flowers in late summer. It has slender branches that climb (with support) 10 to 15 ft. and makes its best growth in loamy soil with shade over its roots. There are many hybrid varieties.
Website/Catalog (1932) Page(s) 24.
Clématites à grandes fleurs...Jackmani. Violet foncé, très vigoureux.
Website/Catalog (1926) Page(s) 2.
Clematis: The Queen of Climbing Plants
There is no more ornamental class of plants than Clematis, and the rich show of bloom produced by the best varieties is far too magnificent to be fairly portrayed by the best of pictures. The flowers are of large size, measuring four to six inches and sometimes eight inches in diameter. We presume every one of our customers who sees Clematis plants in bloom each summer promises to plant some in his own yard or garden at the next opportunity. They are especially adapted to open lawns or house fronts in the city or country. Perfectly hardy, bearing beautiful and lasting flowers. The three large-flowered varieties shown in this circular are, with the small-flowered, sweet-scented Paniculata, the best varieties in cultivation.
The flowers are large, intense rich velvety violet-purple, and are produced in such masses as to form a cloud of bloom. Although introduced more than forty years ago, the Jackmani has maintained its place as the best known Clematis, with few equals and no superiors.
Plant in a sunny spot in good garden soil, dug very deep, placing the crown of the roots three inches below the surface of the soil. We recommend the application of well-rotted manure in holes a few inches away from the plant in opposite directions. The feeding roots reach out to these holes, which may be watered freely, with better success than when the manure is applied directly to the base of the plant.
Well rooted and Ripened Plants from 2½ inch Pots, $2.50 Per Dozen, $15.00 Per Hundred
Website/Catalog (1924) Page(s) 107.
Jackmani, violet foncé, très vigoureux et florifère.
Magazine (Sep 1920) Page(s) 202.
Planting the Home Grounds
The Use of Vines By N. H. Ellsworth
The large-flowered varieties of clematis include a number of beautiful forms which, however, do not make a vigorous growth of vine. When once established and blossoming freely they are a sufficient reward for much careful attention, being probably the most strikingly decorative of all vines. There are several distinct varieties of these: Henryi is perhaps the best of the white sorts. The familiar purple clematis is known as Jackmanni and there is a crimson sort with large attractive flowers known as Madame André. The beautiful soft pink flowers of Madame Baron Veillard are seldom seen outside of nurseries and special collections, but this variety is well worth setting out.