dogfennel

Dogfennel (Eupatorium capillifolium) is a drought-tolerant and low-maintenance plant, though it still benefits from regular watering. The general rule of thumb is to give it 1-2 inches of water per week, either from rainfall or manual watering. However, the frequency of watering will depend on the weather and other factors. In the summer, dogfennel should be watered deeply every 3 to 4 days, as long as the soil is not already saturated. Make sure to water thoroughly in the morning to give the plants the best chance of drying quickly and avoiding rot. In winter, the frequency of watering can be reduced. Water every few weeks or when the top of the soil begins to dry out, and avoid overwatering. In hot, dry climates, dogfennel may need more frequent watering, especially during periods of extreme heat. In cooler, humid climates, the plant can be allowed to dry out more between watering. Regular monitoring of the soil moisture is the best way to know when your dogfennel needs watering.

Dogfennel prefers full sun or partial shade for optimal growth. In full sun, this plant should receive at least 6-8 hours of direct sunlight each day for it to develop its best shape and colour. In areas with higher heat, partial shade is beneficial, allowing the plant to receive some indirect light while protected from the full force of the afternoon sun. In the summer, it is best to avoid direct midday sun, which can be too intense. In winter months, while dogfennel prefers more sun, the reduced light intensity is actually beneficial to this plant and can prevent it from dropping its leaves or becoming dried and burned.

Dogfennel (Eupatorium capillifolium) should be pruned at least once a year, typically during the late winter or early spring months when the plant is dormant. Pruning should occur after the last frost of the season. To prevent the plant from becoming woody or overgrown, prune any dead or diseased branches, as well as any branches that are growing in an unsightly direction. Additionally, cutting back any overly tall branches will help to keep the plant a manageable size. Dogfennel should never be pruned more than 1-third of its total growth.