Japanese aster - Kalimeris


The kalimeris is a genus that includes some species of perennial herbaceous plants, originating in the Asian region; produce a small rosette of spatula leaves, from which develop erect stems, more or less branched depending on the species, which bear numerous small linear or spatulate leaves, of a light green color, which generally give rise to a small shrub, high about 40-60 cm. During the summer months it produces numerous small daisy-shaped flowers, white, rosé or lilac, with a characteristic golden yellow center. Plant of easy cultivation, very appreciated for the very prolonged and abundant flowering. Kalimeris is a plant that is used to embellish gardens and outdoor spaces thanks to its ease of growth and multiplication.

Cultivation techniques

If we want to cultivate the Japanese star we need to know its cultivation needs regarding exposure, irrigation, soil, fertilization and the care it needs. The Japanese star is grown in a sunny and bright place; during the summer it is advisable to provide a slight shade to the plants cultivated in places with very hot summers, during the hottest hours of the day. The kalimeris do not fear frost, and in areas where winters are harsh the aerial part dries up. As for watering, it is advisable to irrigate the plant from May-June until October with regularity, always waiting for the soil to dry perfectly between one watering and another. During the vegetative period it is necessary to provide fertilizer for flowering plants, dissolved in the water of the watering every 10-15 days.


The kalimeris species develop without problems in any terrain. A characteristic of the soil is that it must be very well drained; our kalimeris do not like very heavy or poorly drained soils. They can also be grown in pots or containers; in this case we recommend periodic repotting, to be carried out in autumn, every 2-3 years or so to improve the development and growth of our plants.


The reproduction of the Japanese star occurs mainly by seed, in the spring season; in autumn it is instead possible to divide the clumps, remembering to provide for each portion practiced some well-developed roots.

Japanese aster - Kalimeris: Pests and diseases

The Japanese star is a plant that is not particularly affected by pests or diseases. Despite this, it can sometimes be attacked by aphids. These are small insects or pests that are better known as "plant lice" that affect the outdoor and indoor plants infesting them without distinction. The body of the aphids appears fleshy and roundish; their size is really small: in fact they reach a maximum length of 3 mm. They tend to live in colonies and attack roots, leaves, stems, fruits and shoots. These parasites feed on plant sap. In this way they weaken and deform leaves and shoots. In addition to this, they produce a rather clear and sticky substance which, depositing itself on the leaves favors the formation of the fumaggine.