Dear Uli, Jennifer asked about Sandersonia aurantiaca before you joined as she too had trouble with it. I posted this response from the past when I too wondered about it. *Sandersonia aurantiaca-- From Rachel Saunders in the past Soak the seeds overnight in water. The next day put the swollen seeds into a plastic bag and put in the fridge for 3 to 4 months. Open the bag each month and check that the seeds are still moist, and if not, moisten them slightly. At the end of 3 months, sow the seeds normally in wet drained potting soil - this should be in late spring when the weather is warm. The seeds should germinate in about 4 to 6 weeks. Keep the seedlings growing through the summer and they will go dormant in late summer or autumn. Do not throw the soil away - more seeds will germinate the next year, and perhaps the year after that too. Our second year crop was probably just as big as the first year!