Where are the best places to use sea holly in the landscape?

Sea holly is an excellent option for sunny garden spots that are hard to water. It can be planted alone or in small clusters. The blue and silver hues of sea holly complement various colors, particularly yellow and orange. Try combining it with rudbeckia, coreopsis, zinnia, and cosmos. Sea holly attracts bees and butterflies but deters deer and rabbits. When used in floral arrangements, the flowers remain fresh for several days.

How long does sea holly live?

With a deep taproot that enables it to thrive in unfavorable soil conditions, a mature sea holly plant can survive for many years, eventually expanding to resemble a small shrub. Interestingly, plants in nutrient-rich soil tend to have shorter lifespans.

Does sea holly self-seed?

Sea holly will self-seed in the garden if the spent flowers are not deadheaded. The seedlings that emerge are usually not troublesome. When you spot them, delicately relocate them to create new plants. It's crucial to act promptly as sea holly grows a lengthy taproot that does not transplant well once established.

How long does sea holly stay in bloom?

Sea holly typically flowers from mid-summer to fall. To extend the blooming period or promote more blooms, remove spent flowers.