Impatiens mirabilis (Balsaminaceae) This Impatiens come from Malysia. It has a caudex like stem and grow in shady areas with peat where it receives a lot of water in summer. The stem can reach a diameter of 15cm and a height of 60cm. Date of harvest : October 2011. Locality : Ex Hort. Sowing : Sow seeds as soon as possible as they loose their viability soon.