Beautiful, jagged-edged grey leaves are thickly dusted with farina, which also coats the flower stems, each carrying whorls of bright yellow flowers. This spectacular and rarely-encountered beauty can be grown in a dry, protected spot outdoors, but it truly does make an amazing spectacle indoors or in an alpine house, where it can stand considerable heat and drying, even on a hot window sill as in the illustration here. It can be very thirsty, but it rewards constant drinks, and occasional feeding with an endless display of fragrant flowers as it blooms on and off for much of the year apart from mid-winter! In the wild the Sphondylia section of primulas come from surprisingly hot places, like Saudia Arabia, Yemen, the Sinai peninsula and Ethiopia, where they inhabit shady, damp places and often grow on wet, north facing, limestone cliffs. Botanically, they are related to, and indeed the flowers bear some resemblance, to the beautiful, and much harder-to-grow Dionysia species. Old plants can grow to a very large size and reward being re-potted yearly.
Primula seeds may be sown in good light conditions at any time onto a loam-based compost, barely cover so that around 50% are still visible. We never use artificial heat, primulas are COOL germinators! As a rule best temperatures are usually between 10 and 15 degrees C. (e.g. a cool greenhouse or northerly window sill) PLEASE NOTE: Temperatures exceeding 15 C can prevent germination, and above 20 C expect very little germination as seeds can go dormant as a protective measure. Germination can take up to 6 weeks, but sometimes takes much longer.
Classification:Half hardy perennial, Hardy perennial