Jackman’s clematis (Clematis x jackmanii) has been planted to climb the massive central arbor in The Gerard T. Donnelly Grand Garden at the Arboretum, and by mid-June some of the plants had ...

Clematis prefer a rich garden loam that is high in organic matter and well-drained. The key to growing clematis is to keep their roots cool. They require about 6 hours of direct sunlight to thrive ...

Clematis prefer rich, well-drained soil, and plenty of water throughout the growing season, but don’t let them get soggy. Dig a hole the same depth as the pot the plant arrived in and settle it ...

The full clematis family comprises twelve different groups, each with different habits and methods of care. But most popular are the spring bloomers (Group 1), repeat bloomers (Group 2), and ...