Soaking seeds overnight and/or scarifying may speed up germination.
Try to aim for a seed spacing of at least 1.95 inches (5.0 cm) and sow at a depth of around 0.5 inches (1.27 cm).By our calculations, you should look at sowing Canary Creeper about 14 days before your last frost date.
Harvest the leaves when there is plenty.
Nasturtium