FLOWERING THE CLASSICS
Some popular varieties won’t bloom in their first year unless they are vernalized first, such as Lavender 'Phenomenal' and Rudbeckia 'Goldsturm'.
When perennials go dormant, plants don’t stop growing. They move their energy from the leaves to the roots and crown. That winter growth of roots creates a fuller network to pull water and nutrients from the soil, allowing the plant to start the spring with more vigor.
Vernalization generates more flowers at retail because the plug creates higher bud counts.
FLOWERS ON CUE
Many perennials use a period of dormancy to determine their spring blooming cycles. A winter bite supplies the trigger to flower on time, not off-schedule. When the domancy is missing, the flowers might bloom at odd times or miss this year’s blooming cycle.