delirium florens
Jackman's clematis - cutout
For this image, I have (after quite some time) made a flower cutout again. As often when taking pictures outside of botanical gardens (and at times even there), I am not 100% certain that I have identified this cultivar correctly. However, Jackman's clematis is one of the most popular clematis cultivars used in gardens. It has large blueish-purple flowers (often somewhat lighter than these) with only four petals on each flower. This plant, which was blooming in early summer, had long, woody tendrils, which make me believe it belongs to clematis group 3 (explanation below).
The Clematis_x_Jackmanii cultivar was introduced by Jackman's Nursery in 1862. According to the Royal Horticultural Society, which gave the cultivar its Award of Garden Merit, today's C. Jackmanii may not actually be the same as the 19th century original introduced by George Jackman which is probably lost. This is possibly due to the fact that the original was grafted onto a different plant as its rootstock.
The x in Clematis_x_Jackmanii indicates that his is a hybrid of two species. I have found different claims as to what these might have been, though. It is either a cross between C. lanuginosa and C. viticella, or between C. lanuginosa, which in this claim would be the red form of C. viticella, and C. × hendersonii. Either way, Jackman's clematis was a huge success for the nurserey and for George Jackman II, who led the family nursery in its third generation.
Explanation: Clematis cultivars are grouped into three groups according to their flowering time and pruning needs: Group 1 blooms winter through spring. Group 2 will bloom both in spring and summer and will produce realtively large, 'showy' flowers. Groups 1 and 2 will produce flowers on old growths, though I've found suggestions for group 2 to be pruned in order to encourage new growth and more flowers. Group 3 are early to late summer or fall bloomers, which will produce flowers only on new growth. These will usually be pruned relatively close to the ground.
Jackman's clematis - cutout
For this image, I have (after quite some time) made a flower cutout again. As often when taking pictures outside of botanical gardens (and at times even there), I am not 100% certain that I have identified this cultivar correctly. However, Jackman's clematis is one of the most popular clematis cultivars used in gardens. It has large blueish-purple flowers (often somewhat lighter than these) with only four petals on each flower. This plant, which was blooming in early summer, had long, woody tendrils, which make me believe it belongs to clematis group 3 (explanation below).
The Clematis_x_Jackmanii cultivar was introduced by Jackman's Nursery in 1862. According to the Royal Horticultural Society, which gave the cultivar its Award of Garden Merit, today's C. Jackmanii may not actually be the same as the 19th century original introduced by George Jackman which is probably lost. This is possibly due to the fact that the original was grafted onto a different plant as its rootstock.
The x in Clematis_x_Jackmanii indicates that his is a hybrid of two species. I have found different claims as to what these might have been, though. It is either a cross between C. lanuginosa and C. viticella, or between C. lanuginosa, which in this claim would be the red form of C. viticella, and C. × hendersonii. Either way, Jackman's clematis was a huge success for the nurserey and for George Jackman II, who led the family nursery in its third generation.
Explanation: Clematis cultivars are grouped into three groups according to their flowering time and pruning needs: Group 1 blooms winter through spring. Group 2 will bloom both in spring and summer and will produce realtively large, 'showy' flowers. Groups 1 and 2 will produce flowers on old growths, though I've found suggestions for group 2 to be pruned in order to encourage new growth and more flowers. Group 3 are early to late summer or fall bloomers, which will produce flowers only on new growth. These will usually be pruned relatively close to the ground.