Several hybrids of A. koreana have been raised by nurseries and specialist growers; very few are in wide circulation except a few forms of A. koreana × A. lasiocarpa (Auders & Spicer 2012). Unsurprisingly, however, there are often problems with identification: for several years a European supplier has intermittently been selling plants labelled simply A. koreana when in fact these are a form of koreana × lasiocarpa. This isn’t necessarily regrettable, for the best forms of this cross make rather handsome small garden trees, but the hybrid is amply distinct from ‘pure’ forms of A. koreana and a dilligent horticulturist ought to be able to spot an imposter.
The horticultural merit of the more obscure hybrids, which are becoming increasingly fashionable, is yet to be adequately tested.
Abies × koreocarpa
A cultivated hybrid between A. koreana and A. lasiocarpa intermediate between its parents. Individual leaves tend to resemble A. lasiocarpa, usually being longer and narrower than in A. koreana, but their arrangement on the shoots is more or less radial, as in A. koreana. Several cultivars are assigned here by Auders & Spicer (2012); see below:
Seemingly a recent cross, perhaps of Dutch origin; Auders & Spicer suggest forms of it were first cultivated by Wiel Linssen in the 1990s. Another was raised in Germany prior to 2006. Some have a very complex parentage, involving a back-crosses with named selections of one or both of the parent species, and it remains to be seen whether these will be stable enough to gain a foot hold in collections (Auders & Spicer 2012).
A recent cross, possibly raised by the late Aris Auders. Auders & Spicer (2012) give very little information, merely noting its existence, although with the unfortunate fashion for increasingly bizarre crosses we probably haven’t heard the last of it.