Plants. Lime makes soils less acidic and more alkaline. Most plants grow best in slightly acidic soil. By adding lime to the soil, you can kill a variety of pest plants. Fewer nutrients become available to the unwanted plants as the soil becomes less acidic.
Select a well-draining site in full sun for your wisteria. These plants require at least six hours of direct sunlight each day. They prefer moist locations that don't dry out excessively, but won't tolerate wet feet. Multiple plants will need at least 10 to 15 feet of space between them.
Once it is established, water infrequently (more frequently in hot climates). In coastal areas, old vines need little to no supplemental water. Unless grown as a ground cover or trained as a tree, wisteria needs the strong support of a sturdy pergola or trellis. Pruning is also critical to maintain this vigorous grower. Late winter. 1. Once the vine has developed its structure, cut back side shoots to two or three buds (count from where shoot originates).