Plants that bloom in June in Zone 10 with blue flowers

Bachelor's Button

True cornflower blue that almost no other flower can match. Cottage garden classic that self-sows reliably.

Bird of Paradise

Sculptural, crane-like flowers in orange and blue. Unmistakable.

Blue False Indigo

Lupine-like spikes on a native that lives forever. Gets better with age.

Borage

Star-shaped electric blue flowers that bees go absolutely wild for. Self-sows freely.

Butterfly Bush

Long, arching flower wands that butterflies absolutely lose their minds over.

Catmint

Billowy lavender-blue haze that blooms all season if you shear it back.

Clematis

The queen of flowering vines. Over 300 species, something for every spot.

Hydrangea

Massive mophead blooms that shift color with soil pH. Showstoppers.

Iris

Elegant sword-leaved perennials with intricate, ruffled blooms.

Larkspur

Tall spires of spurred flowers in deep blue and purple. The annual cousin of delphinium, easier to grow from seed and just as dramatic.

Lavender

Fragrant silver-green mounds beloved by bees and humans alike.

Lisianthus

Rose-like ruffled blooms with the vase life of a chrysanthemum. The flower farmer's secret weapon for high-end arrangements.

Morning Glory

Fast-climbing vine with trumpets that open fresh every morning.

Nigella

Sky-blue flowers wreathed in feathery green bracts give way to ornamental striped seed pods. Self-sows freely once you start.

Pickerelweed

Spikes of violet-blue flowers above glossy arrow-shaped leaves. Native pond and stream bank staple.

Plumbago

Sky-blue phlox-like clusters bloom nonstop in warm climates. The blue flower that thrives where most blues melt in summer heat.

Salvia

Vertical flower spikes that hummingbirds and bees cannot resist.

Statice

Stiff papery flower clusters that dry to keep their color for years. A cut-flower farmer staple for wreaths and dried bouquets.

Triteleia

Loose umbels of starry blue trumpets on tall wiry stems. Western native bulb that thrives on summer drought.

Vinca

Evergreen mat with periwinkle-blue flowers. Tough shade ground cover.