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13 Jul 2018

Achillea (Compositae)

The name derives from that of the Greek hero Achille who is said to have employed the astringent qualities of the. filipendulina to treat its wounds. The genus includes perennial rustic plants for the garden or for the rock garden, typical of the temperate zones of the northern hemisphere; several species are alpine.

In the frame of this formal garden we notice in the foreground Achillea (Compositae)
In the frame of this formal garden we notice in the foreground Achillea (Compositae)

Cultivated species of Achillea:

A. filipendulina, syn. Achillea eupatorium (about 1.50 m), pinnate leaves, peeping flowers, yellow, gathered in dense flattened corymbs. There are various cultivars; Achillea millefolium, a yarrow (cm 30 – m 1), bipinnate leaves, flat corymbs with pink or white flowers, the type is common in pre-alpine pastures; the varieties grown for the garden have more showy flowers, also red, deriving from the rubra variety; A. ptarmica (60 cm), suitable for the northern regions, with linear-lanceolate leaves and white flower heads whose cultivars, with double flowers, are also widely used for cut flowers; Achillea ageratifolia, A. crysocoma, A. tomentosa and several others are used in rock gardens, especially in alpine type; they are all low, ground-covering, with yellow or white flowers.

Cultivation:

the Achillea do not have particular needs of soil, provided it is permeable and well drained. While they mostly prefer slightly calcareous soils, they also adapt well to acid soils. Sunny position, partial shade in warm climates. The multiplication can be done by division in spring or autumn or by seed in spring.

09 May 2018

Anacyclus (Compositae)

The name of Anacyclus (Compositae) derives from the Greek anà «above» and kílos «circle», due to the fact that the fertile female flowers are arranged in a circle around the disc of the flower head. They are plants that form shrubs and can be used in rock gardens; the flowers remind those of chrysanthemums and chamomile.

Anacyclus depressus is a pretty little plant particularly suitable for the rock garden.
Anacyclus depressus is a pretty little plant particularly suitable for the rock garden.

Annual cultivated species:

A. radiatus, an upright, stiff plant, can reach 60 cm in height, has the typical flowering inflorescence with peripheral yellow ligulate flowers and brown hues on the dorsal part; it is spontaneous in Italy. The flowering lasts from May to August; Anacyclus officinarum, has white peripheral ligulate flowers and rarely exceeds 25 centimeters in height.

Perennial cultivated species:

A. atlanticus, a plant with a prostrate stem and white flowers, superiorly and purpureous, inferiorly, longidiurna, blooms in late spring or early summer; Anacyclus depressus, as the previous one has a stem lying on the ground, the flowers are white and crimson in the dorsal part; Anacyclus maroccanus, quite similar to Anacyclus depressus, but larger in size.

Cultivation:

these plants require full sun exposure and sandy or gravelly soil. In the rock garden can also be placed on the rocks. The multiplication can take place by seed, sowing at the beginning of spring in a cold box, in full light, on well-drained soil.


Read also: Anacampseros (Portulacaceae)