How to grow Lily of the valley 'Marcel'
Keep in mind when planting that Marcel is thought of as hardy, so this plant will survive close to or on freezing temperatures.
Growing Marcel from seed
Try to aim for a seed spacing of at least 7.8 inches (20.0 cm) and sow at a depth of around 0.94 inches (2.4 cm).
Transplanting Marcel
As Marcel is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.
Harvesting Marcel