Cultivation Database

   Oct 17

Germinating Hard-shelled Seeds Such as Mimosa, Acacia and Bundleflower: The Hot Water Technique

A lot of species have hard-shelled seed coats that need special treatment in order to allow moisture to penetrate and reach the embryo so that germination can begin. For many species, including Hawaiian Baby Woodrose (Argyreia nervosa) and Lotus (Nelumbo Nucifera), the process of scarification, which essentially involves wearing down the seed coat by abrasion, is sufficient. But for other plants such as Acacia Maidenii, Mimosa Hostilis, Desmanthus Illinoensis, Lespedeza Bicolor and a lot of related species, the seeds are best off being softened by hot water. The simple process of subjecting them to hot water is known among growers as “The Hot Water Tek”.

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