Clematis 'JACKMANII' old man's beard
size/type
vine,vine
usual height
2-3m
usual width
1-1m
leaves
deciduous broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
June-August
location
full to partial sun
soil type
neutral
soil moisture requirements
evenly moist (dislikes drought)
USDA zone (lowest)
4 (down to -34°C)
winter protection
for zone 5+6
for zone 7
categorized
Description of the plant:
Jackmanii is one of the oldest clematis varieties (from 1858) as well as one of the very first and very popular hybrids with large flowers. This explains why it is so widespread by today. Its 4-petalled deep purple blue flowers are negligently covering fences and posts and other supports, creating a cottage garden feeling. It is not so compact compared to some modern hybrids which produce flowers in almost flat sheets around the fence. It belongs to Group 3 clematis, flowering in mid- and late summer. Flowers appear on new growths. Cut back all the previous year's stems to a pair of strong buds, 15-20 cm above soil level, before growth begins in early spring.
Clematis likes deep, fertile, moist but well-drained soil that remains cool. You can grow a plant below clematis that will provide shade for its roots. Add garden compost in late winter and mulch it well. Fully hardy to min. -34°C (USDA zone 4).
Last update 22-02-2017
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GLOSSARY
- STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
- DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
- EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
- STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
- HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
- SHRUB - a woody plant with branches growing bushy from the ground level.
- HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
- FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
- GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
