The best perennial verbena for the Louisiana landscape is Homestead Purple. Even with an avalanche of new varieties on the market, this plant is still the best of the best for Louisiana. Rich purple blooms cover a 3-foot-wide canopy of foliage twice annually – peak bloom being midwinter until late spring (mid-February through May) and then another flowering during fall. Although perennial verbenas are generally planted in spring, we need to consider fall and winter planting of perennial verbenas for best performance the first year. This is the reason we are promoting Homestead Purple as a fall Louisiana Super Plant. In the landscape, spacing between plants should be 18 inches at planting, and the plants should be sheared occasionally to bring back nice, new foliage growth. They should be fertilized at planting and in each spring. Verbenas need full sun and well-drained soil for best success.
Growing information:
The LSU AgCenter and the LSU College of Agriculture