Synonyms:

There are not synonyms for the cultivar Kikko Turtle shell but A. asterias has the following synonyms:

Echinocactus asterias
Astrophytum asterias var. magnipunctatum
Astrophytum asterias var. multipunctatum
Astrophytum asterias var. nudicarpa
Astrophytum asterias var. nudum
Astrophytum asterias var. pubescente
Astrophytum asterias var. roseiflorum
Astrophytum asterias var. seminudum
Echinocactus asterias var. nudus

Habitat:

Astrophytum asterias is native to Mexico Northeast and Texas where the plant grows in desert-like conditions in rocky, well-draining soils. However, the “Kikko Turtle shell” hybrid is a cultivated variety and is not found in the wild.

Description:

Astrophytum asterias hybrid (cv. Kikko Turtle shell) is a rare hybrid of the more common A. asterias belonging to the Cactaceae botanical family. The plant is small and globular and can reach up to 10 cm in diameter. The dark green stem is organised in 8-10 distinct ribs from which emerge tubercles. The tubercles are the most curious feature of this plant and are also the reason of its name. The specific epithet Turtle shell refers to the tubercles which emerge at the top of the plant that resemble the pattern of the turtle shell. The tubercles are pronounced, deeply ridged and bearing white, fluffy areoles at the center. The young areoles bear a needle-like, 2 cm long, dark brown spine, when in age the spines drop. The blooming occurs during the spring and the blossom are borne at the apex of the plant. The single flower is large, daisy-like showy, with white petals and yellow stamens and orange center. These flowers can reach up to 5 cm in diameter, providing a brilliant contrast to the cactus’s rugged form. The sculptural look and the showy flowering make this plant an unique piece of collection for enthusiast and collectors.

Cultivation:

This plant is slow-growing and it is highly cherished by those who appreciate the patience required to nurture it to full beauty. The plant benefits from bright exposure, but during the hottest periods, direct sunlight can cause scorching, so it is recommended to avoid it. The plant is sensitive to temperatures below 5°C, so it should be moved indoors in colder weather. The soil should consist of a mix of pumice or perlite, sand, and loam to ensure proper drainage and prevent root rot, to which the plant is susceptible. To facilitate excess water drainage, it is recommended to use a perforated pot. During the vegetative period, it is recommended to soak the plant every 7 days, ensuring that the soil is completely dry before the next soaking. Overwatering, especially in cooler months, can lead to root rot. In winter, watering should be suspended to allow the plant to enter dormancy. Regarding fertilization, a light application of specific cactus fertilizers during the growing season is sufficient. Fertilization should be discontinued in winter. You should repot the plant every 3 years in a pot 2 cm wider. Repotting should be done early in the growing season using fresh potting soil. It is essential to be vigilant for red spiders and mealybugs, as these pests can pose a threat to the plant’s health. Regular checks and prompt intervention are advisable to keep these potential issues under control.

Propagation:

Propagation can be done by seed or by grafting. Propagating this hybrid by seed is not simple; it is needed to sow the seed in a sandy loam soil and keep it at moist but not waterlogged with a temperature of 14 C°. If you sow seeds collected from your own plants, clean the seeds thoroughly and soak them in water to remove any inhibitors. Germination can take several weeks, and the seedlings are delicate for the first few months. Grafting is a faster and easier way to propagate the plant. Cut the stem and chose a stock with a diameter similar to that of the scion. After the cut, wash away the latex until it no longer remains. Bring the scion closer to the stock and held together with elastic bands. The plants should be left in an airy and shady place for 7-10 days before the bands are removed. Choose a vigorous rootstock for a faster grow.

Curiosity:

The name comes from the greek “Aster”, that means star, and it is given by the presence of several sections that form the pointy ends (from four to eight points) of these plants and that is particularly striking when seen from above. The name “Kikko” in Japanese refers to a tortoiseshell, a fitting descriptor for this cactus’s appearance.

Official Web Site:
www.giromagi.com

Italian Blog:
www.giromagicactus.com

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