![]() Planting and SpacingĬomfrey can be planted from April to September as long as the soil can be worked, but planting in spring is best. Root cuttings will develop buds in about 3–6 weeks, while crown divisions will emerge 10 days after planting. Root cuttings are the cheapest and most common propagation method. PropagationĬomfrey rarely produces seeds, so propagate new plants from root cuttings, crown divisions, or transplants. If you fertilize with compost, apply no more than 1 inch of well-composted organic matter over the garden area fertilized. Work the fertilizer into the top 6 inches of soil. How to Grow SoilĬomfrey is adaptable to most soil types but grows best in moist, fertile soil rich in organic matter, with a pH ranging from 6.0 to 7.0 Soil Preparationīefore planting, determine fertilizer needs with a soil test and follow the recommendations given with the test report. ![]() Russian comfrey is the variety of comfrey generally found in local garden centers. Common comfrey has cream or purple flowers, while Russian comfrey features blue or violet flowers. The two well-known varieties are common comfrey (often called true comfrey) and Russian comfrey (or Bocking 14). It should be noted that consuming high doses or excessive long-term ingestion may cause liver toxicity, and those with known liver issues should consult a doctor before ingesting comfrey. Some leaves and roots are harvested after the first year of growth. Once established, comfrey outcompetes weeds and does not have any reported insect or disease issues in Utah. Maintain moderate soil moisture, especially when plants are young. Comfrey can be planted throughout the growing season but establishes best when planted in the spring. Comfrey is propagated by root cuttings or crown divisions. Comfrey grows best in partial to full sun in moist, fertile soil. Comfrey ( Symphytum officinale) is a very hardy perennial herb adaptable to most conditions.
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