RHS Delphinium Centurion Sky Blue F1 Seeds

Yes, Centurion Delphiniums are perennial flower plants. This means that they can live for several years if properly cared for! After they finish flowering, your Delphiniums will die back and lie dormant over winter, before growing and blooming again next year. Cutting back the stems after flowering helps promote new growth and keeps the plant healthy for the following year.

Yes, Centurion Delphiniums can self-seed after flowering and grow new plants around the garden. However, this is not always guaranteed, as the dropped seeds do not typically have high germination rates. It’s also worth bearing in mind that because Delphinium Centurion is a hybrid variety, the new plants are unlikely to be identical to the parent plant. 

Centurion Delphiniums typically flower from early to mid-summer, usually around July to September. The exact timing can vary depending on the climate and growing conditions. Their flowers last for several weeks, drawing the eye with their tall, clustered spikes. To extend the flowering period, remove faded flowers to encourage more buds to develop.