Delphiniums
Zones: 3 to 7
Bloom Time: Late spring to early summer
Height: 30″ to 36″
Delphiniums are a perennial that are topped by tall, spiked blooms. They are one of the plants that produces true blue flowers.
Like Foxgloves, they will do well at the back of the border and may require staking to prevent them from falling over.
This post was originally published on July 12, 2020 but was updated with new content on May 2, 2024.