How to grow Dinner Plate Dahlia 'Luca johanna'
Keep in mind when planting that Luca johanna is thought of as tender, so it is really important to ensure that the outside temperature is well above freezing before planting or moving outdoors.
Growing Luca johanna from seed
Look to ensure a distance 1.62 feet (50.0 cm) between seeds when sowing - bury at a depth of at least 3.12 inches (8.0 cm) deep.
Transplanting Luca johanna
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Luca johanna is a tender plant.
Harvesting Luca johanna
This variety tends to be ready for harvesting by mid summer.