British yellowhead

British yellowhead should be watered deeply at least once a week during the growing season. Water the plants until the top 12 inches of the soil is moist. This plant species can also be watered even more frequently in warm weather, up to 2 times a week, to ensure adequate moisture. In the winter months, when the temperature drops, water can be reduced to every 10 to 14 days.

British yellowhead is a perennial that prefers full sun for most of the day, at least 8 hours or more if possible. While it can tolerate partial shade, it will not flower as abundantly as it would with more sunlight. During the summer months, when the days are longest, it is ideal that British yellowhead receive direct sunlight for at least 6 hours, but more would be beneficial. During the winter months, when the days are shorter, British yellowhead will benefit from as much sunlight as possible.

Pruning of British yellowhead (Inula britannica) should be done in the early springtime, just after flowering. The plant should be pruned back by up to 1/3 of its height. Remove any weak, dead, or broken stems, and shape the remaining stems back to create a dome-shaped bush. If the stems get too long, prune them back lightly by another 1/3 of their height. This will encourage new growth. If the plant has not been pruned in the last few years, more extreme pruning can be done by cutting back up to 2/3 of the plant's height.