A book on the subject of vines will also be of some help. In some areas gardeners have trouble with clematis because it requires a limestone alkaline soil. The flowers range from wine red to pure white, and come in many shapesQbells, urns, saucers, and stars. Some are as small as 1 inch, others are as large as 10 inches across. The plants vary in size from 5 to 50 feet, according to variety.
Some species bloom on last yearUs wood and some bloom on the current seasonUs growth.
The species presented here are those that will add color to your summer garden. Sweet Autumn Clematis. Zones 5 to 10. Sweet autumn clematis bears small white flowers in late August. It blooms on the current yearUs growth and is by far the most common and vigorous clematis.