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Saxifraga 'Coolock Kate'



A very free flowering seedling raised by Jim Almond in 2002. I bought it from Aberconwy Nursery, their label says:

"Very attractive new hybrid from Jim Almond with a curiously bicoloured bright pink flower in March/April. Low dark green mat to about 10cm across. For well drained open soil in trough, scree or alpine house, light position out of direct sun."

Awarded a Preliminary Commendation by the AGS in 2003, Robert Rolfe writes in the Bulletin:

"The offspring of hybrids are an unpredictable bunch, whether 'selfed' or the result of further hybridisation. Several years ago, The Alpine Gardener (68:236-7) carried a report of a putative Saxifraga georgei x poluniniana hybrid bred by Nigel Fuller (Wadhurst, E. Sussex) c. 1990 and given the name S. 'Myriad'. Seed collected from a plant of this grown by Jim Almond (Shrewsbury) was sown in June 1995 and germinated the same summer. Two of the seedlings were selected after they first flowered, named after his daughters and passed on to friends or sold through his surplus plants list.
Out of flower, only the larger, broader-leaved rosettes and moire rapid growth of S. 'Coolock Gem' (=Gemma) mark it out from its sister seedling. There is, however, no mistaking them in bloom, for whereas 'Coolock Gem' has flat faced, 13 mm wide, white, clearly S. georgei-influenced flowers with broad, slightly ,overlapping petals, those of 'Coolock Kate' are a vivid deep purplish-pink, which one observer said reminded him more of those produced by a 'mossy' hybrid, S. 'Peter Pan'. Unlike this cultivar, they are carried singly on 10 mm stems covered in dark red glandular hairs, and have obovate, separated petals 6 x 3-4 mm, much paler towards the base, arranged in a very shallowly cupped fashion with a central core of two rings of dark purple-red anthers. Because the parent plant was open pollinated, suspicions that a third, undetermined parent has been responsible for this unusual flower colour have been voiced, but as yet not substantiated.
'Coolock Kate' is slow-growing and forms a tight cushion of rosettes only 3-5 mm in diameter, composed of convex, triangular leaves 3 x 1 mm (the plant shown had been 'grown hard', accounting for the different measurements when compared with those published in the Summer 2002 issue of The Saxifrage Magazine), encrusted with lime but otherwise dull yellowish-green. For the summer months, it is best grown outdoors, moving it into the alpine house or, better still, an open-sided cold frame by October, since the cushion is happiest if kept dry and well-ventilated over the wintertime. Cuttings taken in late spring are no mnore difficult to root than those of the numerous cultivars of S. x poluanglica, but as intimated above, the young plants grow much more slowly, so that a wait of three or four years can be anticipated before a respectable-sized cushion is achieved.
Vibrantly-coloured 'kabschia' saxifrages have been a long-standing aim of many hybridists. We have just received an article that describes in detail the remarkable vermilion and blood red seedlings raised by Karel Lang (Prague), using Saxifraga kotschyi as the seed parent, and we aim to publish this very shortly. But it is worth noting that some of the most admired, richly coloured hybrids have arisen almost by fluke: S. 'Coolock Kate' falls within this category."


24th February 2019



4th February 2020 14th March 2020 27th March 2020



In the AGS Bulletin for 2006, Robert Rolfe adds:

"The hybridisation of 'Kabschia' saxifrages has never been an exclusively British affair; German, Swiss, American and Czech plant breeders have all contributed tellingly to the present array of cultivars, from the late nineteenth and early twentieth centuries right up to the present. Some of the hundreds upon hundreds of those presently grown perform tirelessly year in, year out; others flower very much better in those countries that as a rule have reliably cold winters and rather late, 'instant' springs. In Britain, by and large, it is the later-flowering species (Saxifraga cinerea, Saxifraga columnaris, Saxifraga diapensioides.Saxifraga ferdinandi-coburgii etc) and their hybrids that have been unaffected by periodically mild, stop/start winters, or dull, grey weeks in early spring, whereas the early-season cointingent has disappointed under such conditions, with sparse or several-stage, dissolute flowerings, and an umbecoming lengthening of the flower stems that transforms and makes a travesty of the depleted display.
Among the staunchly reliable selections, rather surprisingly (given that it is a second generation seedling from a Saxifraga georgei x Saxifraga poluniniana parent), is the subject of this semi-portrait (for a fuller description, readers are referred to The Alpine Gardener 71:407-409 from three years ago, when a Preliminary Commendation was given). Unexpectedly, in view of the parentage, the flowers are dark-eyed, clear pink, and with a whitish flush around the centre; they have a delicacy lacking in many of the larger-flowered , sometimes multi-headed results of multiple-parentage mixings, and are all the better for that. Cultivation is fairly straightforward, though plants are emphatically better placed in a very slightly shaded position outdoors during the summer months and never allowed to become in the least bit dry at the root. It is unusual to see a specimen around 18 cm across (as was the case with the award plant) at present, but 'Coolock Kate' has not quite reached its teenage years and may well have more in store. As an update to the earlier-cited report, there are now three siblings in circulation, for as well as 'Coolock Gem', latterly a mid-pink seedling, 'Coolock Jean', has been named and selectively distributed; if it lives up to the examples set by its fellow sowings, it too may cause heads to turn."






References:
  • Alpine Garden Society, http://archive.alpinegardensociety.net/plants/plant-portraits/Saxifraga%20Kabschia%20Engleria%20cultivars/62/ , accessed 12.01.2025.
  • Rolfe, Robert - 'Plant Awards 2002-2003', Bulletin of the Alpine Garden Society, Vol.71, Part.4 (2003).
  • Rolfe, Robert - 'Plant Awards 2002-2003', Bulletin of the Alpine Garden Society, Vol.74, Part.4 (2006).