Blue Salvia (Salvia spp.): These tall spikes of blue flowers are excellent for attracting pollinators and adding vertical interest to the garden.
Lavender (Lavandula spp.): Known for its aromatic foliage and spikes of small blue-purple flowers, lavender is both beautiful and functional.
Catmint (Nepeta spp.): This perennial produces clusters of small, lavender-blue flowers that bloom from late spring to early summer, attracting bees and butterflies.
Russian Sage (Perovskia atriplicifolia): With its silvery foliage and airy spikes of small blue flowers, Russian sage adds a soft.
Blue Veronica (Veronica spp.): Veronica varieties like 'Blue Skywalker' or 'Crater Lake Blue' produce dense spikes of bright blue flowers in spring and summer.
Blue False Indigo (Baptisia australis): This native perennial features spikes of deep blue flowers in late spring to early summer.
Gentian (Gentiana spp.): Known for their intense blue trumpet-shaped flowers, gentians bloom in late summer and prefer moist, well-drained soil.
Blue Globe Thistle (Echinops ritro): This striking plant produces spherical, steel-blue flower heads that attract bees and butterflies throughout summer.
Balloon Flower (Platycodon grandiflorus): Known for its balloon-like buds that burst open to reveal star-shaped blue flowers.
Blue Sea Holly (Eryngium spp.): With its metallic blue thistle-like flowers and spiky foliage, sea holly is a unique addition to any garden.