You can buy Currant grade Selechenskaya in online stores (seed and seedlings).
$99.99 Winter Gem Korean Boxwood Qty 15 Live Plants 4" Container Fast Growing Cold Hardy Evergreen
$112.86 Sweet Viburnum Odoratissimum Qty 40 Live Plants Privacy Hedge
$15.99 Jobe’s Organics Fast Start Granular Fertilizer with Biozome, 4-4-2 Organic Fertilizer Formulated for Seeds and New Plantings, 4 pound bag
$25.50 Transplant Formula - For Use With Plants and Seeds Including; Vegetables, Herbs, Fruit Trees, Shrubs, and Perennials - Great For Container and Raised Bed Gardens - Fine Powder Supplies Trace Minerals, Soil Microbes, and Biostimulant Carbons
$59.99 Brighter Blooms Dwarf Radicans Gardenia Live Potted Plant - Fragrant Flowering Dwarf Shrub with Citrus Scent
$18.41 Myke TRE18 Tree and Shrub Growth Supplement Mycorrhiza, 1.4 Quarts