Plant placement is particularly important for clematis. They prefer soil that is slightly on the sweet side. For our naturally acidic soil that might mean adding a few handfuls of ground limestone when planting. They like soil rich in organic matter. Mulch in well.
Choose a location that insures that their roots will remain shaded while they climb for the sun. The north side of a hedge or low evergreen works fine.
While many varieties offer sensational ranges of color, deep reds and purples are often more effective in a spot offering filtered light. This will keep them color-fast, keep the soil moist and feed them regularly with either a liquid food or a 5-10-5 type fertilizer.
New plants will benefit from staking. Use a soft twine to tie stems to supports.
