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Inula ensifolia - Growing Guide
Growing Inula ensifolia
Inula ensifolia is a dense bushy perennial which grows (with its flower heads) from 1-2ft in overall height. Its rhizomes spread quickly and it may become a little invasive in the herbaceous border which is not always a bad thing.
In mid to late summer I. ensifolia produces an abundance of yellow flower heads, some singly and some in small corymbs of flowers. These are good for cutting for the house. The leaves are lance shaped and about 3in long with hairy white margins.
Although the flowers are not that tall in height some support is advisable once the clumps are established if your herbaceous border is exposed to strong winds.
Inula are best grown in full sun in a moist situation. If the plants are allowed to dry out in the height of summer the lower leaves may be affected by powdery mildew. They can be divided when dormant in the autumn or early spring.