The Chrysanthemum coccineum is a perennial herbaceous plant, native to Europe and Asia; produces long leaves, finely divided, light green or greyish green; in late spring and in summer it produces long erect stems, thin, rigid, 40-80cm high, on which bloom large daisies, red, pink or white, with a yellow center.
The lively and intense color of these plants is certainly one of the most beautiful and characteristic aspects of this plant.
Plants of easy cultivation, find place in the rock gardens, but also to the sides of the beds of annuals; to favor a second flowering it is good to cut at the base the stems that carry the withered flowers. From the flowers of these plants, also called Tanacetum coccineum, or Pyrethrum coccineum, a powerful insecticide is obtained.
These daisies are grown in a sunny place, even for the whole day; they can also develop in semi-shaded places, where they bloom little though.
They are plants that love expositions in full sun, but even in areas with less light they manage to live well, without however flourishing in an exceptional way.
Generally the plants of Chrysanthemum coccineum do not fear the cold and overcome even the winters of Northern Italy without any particular problems. In areas with very hot summers it is advisable to plant the plants where they can enjoy a few hours of shade during the hottest hours of the day.
From March to October, regularly water the daisies, but wait for the soil to dry between one watering and another. Avoid water stagnation and avoid watering excessively in rainy periods; during the winter months the plants are in vegetative rest, therefore it is not necessary to water. During the vegetative period, add fertilizer for flowering plants to the irrigating water, every 15-20 days.
The fertilizer must be particularly rich in nitrogen and phosphorus to ensure that the plant is the most requested elements in its development phase.
Regarding the soil, the daisies prefer rich, deep and light soils, very well drained; place in a substratum consisting of balanced soil, mixed with sand or petra pumice, to avoid stagnation.
Ideal for this purpose are the high-quality soils found in nurseries and garden centers, made with peat, earth, pumice stone or medioperlite to lighten the substrate and improve water percolation. Let us always remember that the quality of the soil is one of the most important aspects for obtaining excellent results from plants
Chrysanthemum coccineum are sown in seedbeds, in late winter or early spring; small plants are planted when nocturnal temperatures begin to rise. In autumn it is possible to divide the plants, taking care to maintain some vigorous roots in each portion practiced.
Daisy - Chrysanthemum coccineum: Pests and diseases
Chrysanthemum coccineum plants can be attacked by aphids. For the rest, no particular illnesses are reported, but it is advisable to avoid water stagnation which can quickly lead to mold and other root problems.