Dogfennel, Common Dogfennel, Coastal Dogfennel
Eupatorium capillifolium
🌿 Morphology
🌞 Growing conditions
🌍 Origin and family
🌾 Uses
Warning: Despite the care taken in writing this sheet, it is essential to cross-reference sources before using or consuming any plant. When in doubt, consult a qualified professional
Permaculture uses
Dogfennel is primarily used for its ability to attract beneficial insects, particularly predatory wasps and flies, making it a valuable addition to insectary strips and wildlife gardens. Its strong aroma can also deter certain pests. While it is not considered edible for humans or livestock due to the presence of hepatotoxic compounds, it contributes to soil health through its extensive root system which helps prevent erosion. No specific cultivars are noted for enhanced permaculture uses.
Permapeople description
Dogfennel is a perennial herb with feathery leaves and a strong, pungent odor. It is native to the southeastern United States and grows in fields, roadsides, and disturbed areas.
Botanical description
Eupatorium capillifolium is a perennial herbaceous plant in the Asteraceae family. It typically grows to a height of 3-6 feet, but can reach up to 10 feet in favorable conditions. The stems are erect, branching, and covered in finely divided, feathery leaves that give the plant a distinctive appearance. The leaves are alternate and highly dissected, resembling fennel fronds. Small, white flower heads are produced in dense terminal clusters from late summer to fall. The plant reproduces primarily by seed, which are easily dispersed by wind.
Companion planting
Dogfennel is generally considered a good companion plant for attracting beneficial insects, but its allelopathic properties can inhibit the growth of some other plants. It may be best to avoid planting it near sensitive crops or plants that are slow to establish. Its aggressive growth can also outcompete some desirable species.
Propagation methods
Dogfennel is most easily propagated from seed, which should be surface-sown in the spring or fall. It can also be propagated by root division in the spring, although this is less common. Cuttings are possible, but may require rooting hormone to be successful.
History and traditions
Historically, Dogfennel has been used in traditional medicine for its purported diuretic and anti-inflammatory properties, although these uses are not widely supported by scientific evidence. Native American tribes used the plant for various ailments, including fever and respiratory problems. However, its toxicity warrants caution, and it is not commonly used in modern herbal medicine.
Usage calendar
Flowering: August-October. Seed collection: September-November. Planting (seed): Spring or Fall. Pruning: Late winter or early spring to remove dead or damaged growth.