Geissorhiza aspera aka Geissorhiza Aspera

Geissorhiza aspera is in the iris family, Iridaceae. It comes from South Africa’s Cape region. Kew places it in the west-southwestern and southwestern Cape. Kew lists its climate as subtropical. The Royal Horticultural Society accepts the species name as correct. It says the plant is not native to Britain or Ireland. The garden sources give it two common names. The RHS calls it blue satin flower. Chicago Botanic Garden calls it sysie satin flower.

This plant stores reserves in an organ below ground. Kew calls its life form a tuberous geophyte. This term refers to its stores below the soil. Chicago puts it in the bulb group. It also says the plant has an upright form. The sources give no height or spread at full growth. They give no facts about its leaves or stems. The broad term bulb does not pin down the storage organ. Neither source gives enough detail to make that point clear.

Chicago lists the flowers as red. Its bloom entries run from July through August and September through October. Together, these give a July-to-October bloom window in that record. They do not show when it blooms in all climates. The RHS common name uses the word blue. Yet its page does not state the flower colour. The sources thus leave this clash in colour unclear. Neither page tells us the flower shape or scent. They give no facts about fruit or seed.

Chicago says to grow it in full sun. It lists USDA hardiness zones 8–10. It gives beds and borders as garden uses. Its upright form suits those roles in that record. The text gives no planting depth or space between plants. The data taken from the page say to give moderate water. Yet the saved page puts “Moderate” under a soil heading. This clash leaves the water needs unclear. The sources give no clear needs for soil texture or pH. They do not make its drainage needs clear either.

The Chicago page is an archive from before February 2022. It says it no longer updates its content. Read its growing notes with that limit in mind. The records give no facts about pests or disease. They give no evidence for parts to eat or uses as medicine. They do not show that it is safe for people or pets. The supplied text has no review of its conservation status.