ornithogalum dubium (sun star) is native to south africa and available flowering in orange and yellow. it’s a winter growing species.
ornithogalum dubium care
the difficult in growing ornithogalum dubium here in northern europe is, to give this from autumn to spring growing species as much sunlight as needed. because during this time we have shorter days and a often cloudy sky.
so if you don’t have a sunny window, a light bulb can be helpful. if placed to dark, it can produce long and thin leaves.
ornithogalum dubium likes a well drained substrate. i’m using a mix of potting soil, lay granulate and coarse sand (1:1:1). but a standard cacti mix can also be used.
if in growth, ornithogalum dubium can be deep watered. what’s flowing out of the pot’s hole must be removed after a few minutes. wet legs will cause rot. before adding water next let the soil become moderately dry.
a half diluted water soluble fertilizer can be given monthly. fresh bought or recently repotted plants don’t need to be feeded for the first eight weeks.
when the blooming time is over in late spring, the leaves begin to turn yellow. stop watering and feeding now. if the foliage has died back it can be cutted off. during this period, the pot can be stored dark.
in autumn bringt ornithogalum dubium back into the light. now you can slowly increase watering again.