elderberry fruit, will be red or black by the fall

elderberry fruit, will be red or black by the fall. this is a seedling species unknown, but I'm watching out for selections of any black fruiting ones growing well in Manitoba. here we have amerian black elderberry (S. canadensis) - the usual suspects with a dozen cultivars, some of which may be zone 3 hardy in the right context. To date, I haven't got any to survive above the snow but I'm in an exposed low laying area with light soil. and then there's the reclusive rocky mountain elderberry (S. racemesa var melanocarpa) - a black "red" elderberry - would like to find some of that growing it may be our hardiest option