Roripa mullein is the Greek variety of a biennial herb plant grown for certain medicinal properties. Often used for upper respiratory problems, mullein produces beautiful yellow blooms the second year of growth. The mullein, roripa variety has slender stalks of feathery green where the blooms seem to float in mid air, unlike the common varieties with thick stalks and spirals of yellow bloom.
Remove any leaves or flowers desired for drying before pruning and winterizing. Trim the leaves with sharp cuts to avoid any damage to the plant.
Trim back the leaves and stalk of the mullein, roripa, using the pruning shears. Leave at least 6 inches of growth at the crown of the basal rosette to help protect the plant over winter.
Brush away any debris and dirt from the plant to avoid decayed matter being on the plant during the winter months. Paper towels or cotton gloves ease the job of loosening the debris from the fine hairs of the mullein, roripa.
Mulch around the base of the basal rosette at least 2 to 3 inches from the center of the plant. Add more mulch, at least 3 inches, on the top of the rosette.
Remove the mulch at the first signs of new growth in the spring to keep the young shoots from struggling to come up to the surface. Leave the mulch around the outside of the rosette to protect the root ball and keep it moist.