How to grow Tulip 'Oratorio'
Oratorio is generally regarded as a hardy plant, so this plant will survive close to or on freezing temperatures.
Growing Oratorio from seed
Try to aim for a seed spacing of at least 3.9 inches (10.0 cm) and sow at a depth of around 3.9 inches (10.0 cm).
Transplanting Oratorio
Oratorio is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.
Harvesting Oratorio