Plumbago (Leadwort) (Ceratostigma plumbaginoides) is not only pretty, but also a reliable groundcover. It will grow in a rock garden, between rocks in a wall or on a difficult-to-landscape bank. It enjoys being in full sun and partial shade alike, but performs best in ground that is somewhat moist.
It has dark-green, diamond shaped leaves and the clusters of one inch bright blue flowers appear later in summer. A really welcome sight in East Texas hot summers!
In milder climates, Zone 8 and southward (ie: much of east Texas and southward), plumbago maintains its green leaves right through the winter months. However, be sure to cut back the plant when spring returns, so that it will produce fresh foliage.
This plant is 6 to 12 inches tall and 1 to 2 feet wide. Plumbago is truly an easy plant to grow and will add great color to a place in your garden as is has to mine.
Connie Vee Hayes, Smith County Master Gardener
Texas A&M AgriLife Extension Service