SMALL-FLOWERED GROUP (continued)
The Flammula Group includes plants that have been hybridized using such species as C. angustifolia, C. flammula, C. recta and C. terniflora. The Flammula Group encompasses both shrubby and climbing clematis. All have white flowers in terminal panicles.
An example of a shrubby species is C. angustifolia which forms a short herbaceous perennial reaching just above knee-high. C. recta is taller, but it also is non-clinging. This species is most often represented by the form C. recta 'Purpurea' which has purple young growth that greens out with age. There are many selections from this form that have varying heights and leaf-color. The flowers of this species are often fragrant.
Both C. flammula and C. terniflora are climbing and,in their best forms, are also extremely fragrant. (There is a good reason why C. terniflora is call the Sweet Autumn Clematis.) Clematis x triternata 'Rubromarginata' is a cross between C. flammula and C. viticella. It has clusters of flowers with white sepals that are ringed in red violet and are known for their fragrance.
All of these species bloom on the current year's growth and should be cut back at the end of winter to promote new growth.
The Forsteri Group includes crosses that are derived from clematis species from New Zealand and Australia. These species are all evergreen but have varying growth habits. C. 'Early Sensation' is truly always a sensation at early spring garden shows when it is covered with large white flowers. Because it is evergreen, it should be pruned judiciously to shape it after it is done blooming. It is hardy for the maritime Pacific Northwest but can be badly damaged by heavy cold winds. It is therefore best to grow it in a sheltered site.
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