Potentilla - Recta Sulphurea
This is the rarely seen, but much more desirable form of the bright yellow variety. It features dense sprays of palest lemon flowers over a very long season.
For best results, sow the seeds onto a good soil-based compost, covering them with fine grit or compost to approximately their own depth. We recommend germinating at 15 to 20 degrees C. Although they can be sown at any time, these seeds may sometimes wait for spring before emerging, but spring sowing will obviously give them a full season of growth.