Frailea Grahliana Seeds pack of 20 seeds

Frailea Grahliana Description: Frailea grahliana is a common tiny and heavily clumping species that in cultivation can easily fill a 15 cm pot. It grows quickly.
Note: This specie is known from a very long time and is generally included within (as a synonym of) Frailea schilinzkyana . In habitat the plants are highly variable and there are intermediate forms with Frailea pumila and Frailea friederichii and some botanists consider all the different plants of this polymorphic group as F. pumila.
Stem: Dull-green, brownish-green to dark purple-green, top-shaped, depressed-globose, 3-4 cm in diameter and clumping around the base.
Roots: Fleshy yellowish.
Ribs: About 13 to 15 low and indistinct.
Central spines: Absent.
Radial spines: 8 to 11 yellowish, subulate, flattened on the surface, appressed and curved backward, 3-5 mm long.
Flowers: Pale to bright yellow, up to 4 cm long. Fraileas are cleistogamous meaning that their flowers produce seed without even opening. Without the need for pollination, hence the buds rarely reach full bloom and remain closed. They will open only in great heat in the hottest, brightest, afternoon sun, if at all.
Fruits: 6 mm in diameter, dry indehiscent with scales and bristles that detach easily, pericarp membranous, fragile that break easily releasing the seed. This species sets fruits without opening the flowers (cleistogamy)
Seeds: Brown, smooth.

Frailea Grahliana Cultivation and Propagation: Grow them in rich, porous soil and let them dry out between waterings. These plants need a minimum temperature of 5-10° C (but occasionally temperatures of a few degrees below 0° are not dangerous).
Sun Exposure: It enjoys full sun, and it can take on a near black appearance when kept in bright light. In a shaded position the plants grow faster, but are not flat shaped and dark coloured.
Characteristically, during the dry season plants retract completely under the ground both in the wild and in cultivation too. This plant is short living (It does not live long – about 10-15 years).
Propagation: With fresh harvested seeds or (rarely) by grafting.