Echinocactus horizonthalonius
Devilshead - Turks head cactus - Blue barrel cactus seeds

Echinocactus horizonthalonius, a cactus with blue-gray body. It reaches a size of 40 cm tall and 20 cm wide. The pink or gray spines are about 4 cm long. Bright pink to magenta flowers, 8 cm in diameter.

The seeds are sown in mineral-based cat litter or perlite  in plastic-pots. Please sow the seeds on the mineral soil. Bigger seeds need to be covered with the mineral soil, small seeds should remain on the surface.

Then put the plastic pot in a zip lock bag - with a pot size of 6 cm , a zip lock bag of size 12 x 17 cm is recommended . Fill in the zip lock bag as much tap water with a few drops of universal fertilizer, so that after the absorption of the substrate a few mm of water remain on the bottom. 

Location: on the windowsill or in a small greenhouse in partial shade, daytime temperatures at about 73-83 F, somewhat lower at night at 68-72 F.

Price is for 5