Pandorea jasminoides, the bower of beauty, bower vine or bower plant, is a species of woody climbing vine in the family Bignoniaceae. It is native to New South Wales and Queensland, Australia.
For sowing, let them swell in water and put them in a plastic pot

Spread a few seeds on the peat well and cover thinly with the sowing substrate (about 2 mm).

Then place the plastic pot in a zip-lock bag - with a pot size of 6 cm, a zip-lock bag size 120 x 170 mm is recommended. Put enough tap water in the zip-lock bag with a few drops of universal fertilizer so that a few mm of water remain after the substrate has been vacuumed up. 

Location: on the window sill or in a mini greenhouse in partial shade, during the day the temperatures should be around 24 - 28 C, at night a little lower at 20 - 24 C. 
price is for 10 seeds