Cephalaria gigantea

Cephalaria gigantea, the giant scabious, is a truly extraordinary plant. It is a perennial herbaceous plant that reaches a height of 2m (7ft). Numerous slender stems emerge above the leafy clump in summer, ending in very bright sulphur-yellow heads. Vigorous, spectacular, rural and refined, it is a true essential for wild gardens.

Cephalaria gigantea belongs to the Caprifoliaceae family, and originates from the Caucasus region. This herbaceous perennial can become imposing, easily reaching 2m (7ft) in height when flowering, with a spread of at least 60cm (24in). An adult plant occupies 1m² under good growing conditions. While establishment and growth may be slow at the beginning, it proves to be a very durable perennial. It has an upright, bushy habit. The summer flowering takes place in July-August, in the form of cream-yellow flower heads, measuring 3 to 4cm (1 to 2in) in diameter. The flowers are carried by long, slender, striate stems, covered at the base with recurved hairs also found on the petioles. The leaves measure 40cm (16in) in length and are deeply divided into toothed leaflets.

Despite its gigantic proportions, it is very rare for it to require staking, as its stems are robust and its inflorescences are light. However, it may be wise to find a location for it sheltered from the wind. The giant scabious is perfect at the back of a border, or to colonise the banks of water points in full sun or partial shade. Its tall flower stems are thin enough not to cast shade on other perennials. It is easy to imagine it in a large garden, mixed with other giant plants such as Verbascum olympicum, Verbena bonariensis, Campanula lactiflora, or Ferula communis. This combination will have a picturesque and charming effect. Note that its flowers have a good vase life.