Answer: Catanache caerulea is usually considered an easy plant to grow, but it does require full sun. A hot sunny spot on the dry side suits it perfectly. It kicks into growth when the weather and soil warm up, and will self sow where it is happy. Some sources suggest a sandy soil, but a well drained soil should be adequate. If you have a heavier clay soil, that might explain the problem.
Q&A Library Searching Tips