ADB Inc Rare Porcelain Berry Vine Plant Seeds Packet contains (20) fresh seeds. NOTE: Buyers are required to have an import permit or phytosanitary certificate from USDA for ALL seeds imported to the US. Imports without required documentation are subject to confiscation by US customs. Winter hardy in zones 4-8. Flowering occurs from July to August on 15-20' vines. Blooms are relaced by showy clusters of lilac-blue fruits which mature to shades of bright amethyst to porcelain blue. Uses/Culture: Covering for a fence, arbor or trellis. Adapts well to most soil types and conditions; avoid wet, poorly drained soils. Will tolerate partial shade, however, best flower production occurs when used in full sun. Seeds4change guarantees all seeds will be fresh, true to species and GMO-free! Detailed sowing instructions are included with your purchase.