Tanacetum coccineum (Pyrethrum / Chrysanthemum) Robinson's Crimson – deep red summer bloomer for borders and pots

Tanacetum coccineum Robinson's Crimson, also known as Pyrethrum or flower chrysanthemum, is a summer-flowering perennial known for its intense crimson flowers and sturdy, graceful growth. This robust plant is ideal for borders, cut flowers, natural plantings, and pots. Thanks to its profusion of blooms and elegant evergreen foliage, Robinson's Crimson offers a long blooming period and a strong visual impact in the garden.

The combination of ornamental value, pollinator-friendliness, and ease of care makes this Pyrethrum a favorite among gardeners looking for color, structure, and durability.

Features – rich flowers and firm structure

Tanacetum coccineum Robinson's Crimson grows to a height of 60–90 cm, with sturdy stems that support the large, deep red flowers. The flowers are round to slightly flattened, 5–7 cm in diameter, with a distinct yellow center that contrasts beautifully with the crimson petals.

The foliage is finely incised, fresh green, and aromatic, making the plant visually interesting even when not yet in full bloom. Robinson's Crimson blooms from June to September, and with proper care, it can continue to bloom into October in some gardens.

Location and care

Robinson's Crimson is an easy-care perennial, suitable for both novice and experienced gardeners:

• Location: full sun for maximum flowering; light partial shade is possible.

• Soil: well-drained, moderately nutritious; soil that is too rich encourages leaf growth at the expense of flowers

• Water: water regularly during dry periods, but do not allow the feet to become wet

• Fertilization: a light organic fertilizer in spring supports flowering and healthy growth

This Tanacetum thrives in pots and containers, provided the soil is airy and excess water can drain away. The sturdy stems prevent the flowers from drooping.

Pollinator-friendly and ecologically valuable

Robinson's Crimson attracts bees, bumblebees, butterflies, and other beneficial insects, making it an ecologically valuable addition to any garden. The abundant flowers provide a long-lasting nectar source, while the compact plant structure makes it easy for insects to visit.

This combination of ornamental value and ecological function makes Tanacetum coccineum an excellent choice for biodiverse gardens, ecological borders and bee-friendly plantings.

Application in garden design

Tanacetum coccineum Robinson's Crimson is versatile and can be used in various ways:

• High borders: forms a striking back edge in the border thanks to its height and the deep red colour accent

• Cut flowers: flowers are suitable for bouquets and flower arrangements

• Pots and balcony boxes: robust enough to be used in container planting

• Natural gardens or cottage garden: goes well with other perennials such as Echinacea, Rudbeckia and Salvia

• Biodiversity: attracts beneficial insects and contributes to a healthy garden

With its intense crimson colour, Robinson's Crimson contrasts beautifully with white, yellow or pink flowers, adding a warm, luxurious touch to summer borders.