Start seeds indoors six weeks before last frost date.
Try to aim for a seed spacing of at least 0.78 inches (2.0 cm) and sow at a depth of around 0.78 inches (2.0 cm). Soil temperature should be kept higher than 12°C / 54°F to ensure good germination.By our calculations, you should look at sowing Riesentraube about 42 days before your last frost date.
Plant to first set of leaves to promote strong roots.
As Riesentraube is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.The name literally means “giant bunch of grapes”.
An old German heirloom, it was first grown in the USA by the Pennsylvania Dutch as early as 1856.
Reisentraube, Reisentraub
Reisentraube red and yellow