Keep in mind when planting that Renny is thought of as hardy, so this plant will grow or become dormant during the winter. Ideally plant in loamy soil and try to keep the ph of your soil between the range of 5.5 and 7.0 as Renny likes to be in weakly acidic soil to neutral soil.
Growing Renny from seed
As a hybrid variety, this plant will not reliably grow true to type from seed.
Transplanting Renny
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Renny is a hardy plant.