1. Sowing
LG wistaria manufacturer tells you that wisteria will naturally bear fruit when it blooms, but artificial pollination is used to encourage pod formation. The seeds can be harvested and sown immediately when they are mature in autumn, and the seeds are often dried and stored until sowing in the following spring.

LG wistaria manufacturer tells you that soak the wisteria seeds in hot water for 1-2 days before sowing, and when the temperature of the boiling water drops to about 30℃, remove the seeds and wash them in cold water for a while, then keep moisturizing and stack them for 1 day and night before sowing. Germinates at 10-13°C. However, the seedlings produced by sowing and propagation take 3-5 years to flower, and are rarely used.
2. Grafting
LG wistaria manufacturer tells you that this method of grafting is generally used for the propagation of fine varieties, which can be grafted on common rootstocks. Grafting can be carried out before germination in spring, either by branch or root. 
LG wistaria manufacturer tells you that when root grafting, one or two years old branches are generally grafted on the root of another plant, and root grafting is most suitable for potted plants.
The above information is LG wistaria manufacturer's introduction and analysis of some planting steps of the wisteria , hope it helps you.