Comfrey Propagation

Propagation Techniques

• Propagate comfrey with seeds, by root division in the fall or by taking stem cuttings from healthy plants any time of the year. Propagation from seed is an erratic process and germination can take from three weeks to as long as 20 weeks. The easiest propagation technique is with cuttings that are taken in spring, according to Jekka McVicar in the book "Grow Herbs."

Cutting Method

• Cuttings taken in spring are referred to as softwood cuttings. These are succulent and tender, current year growth that is not yet firm. Use sharp, clean scissors to cut 1 1/2- to 6-inch-long sections from softwood stems, measuring back from the stem tips. Longer cuttings tend to establish faster than shorter cuttings. Remove all the leaves from the lower half of each cutting. Retain a couple of leaves at the top, as these help with root production.

Planting Method

• Plant the cuttings in fine gravel or a mixture of equal amounts of sand, peat and perlite. Fill a medium-size pot with the mixture and use a pencil to poke planting holes about 2 inches deep and one to two inches apart. Insert the cuttings deeply enough to leave only the leaves and some part of the stem above the soil line. To promote faster rooting, dip the cut end of the stem in rooting hormone before planting.

Maintenance

• Firm the soil around the cuttings and then mist with water. Place the pot in a large, clear plastic bag and close top. The cuttings need to be in a warm, bright area out of direct sunlight. Turn the bag inside out daily to keep it from becoming overly moist. Mist the cutting with water twice a day, morning and evening. It usually takes two to three weeks for the cutting to produce roots. Softwood cuttings root faster than cuttings taken later in the year.