Violet Blue Plants

Agastache 'Black Adder'

Hyssop

Agastache 'Purple Haze'

Hyssop

Ajuga 'Black Scallop'

Bugleweed

Aster lae. 'Bluebird'

Smooth Blue Aster

Calibrachoa Cabaret 'Blue Midnight'

Delphinium exaltatum

Tall Larkspur

Geranium 'Rozanne'

Crane's Bill

Heliotrope 'Marine'

Iris cristata

Dwarf Crested Iris

Iris versicolor

Blue flag Iris

Pansy Matrix 'Deep Blue Blotch'

Pansy Matrix 'Midnight Glow'

Perovskia atr. 'Blue Jean Baby'

Russian Sage

Perovskia atr. 'Little Spire'

Dwarf Russian Sage

Petunia Dreams 'Midnight'

Petunia Easy Wave 'Blue'

Phacelia bipinnatifida

Fernleaf Phacelia

Phlox div. 'Blue Moon'

Woodland Phlox

Pulmonaria 'Bertram Anderson'

Lungwort

Salvia nem. 'Caradonna'

Meadow Sage

Salvia nem. 'Marcus'

Meadow Sage

Salvia nem. 'Ostfriesland'

Meadow Sage

Veronica spi. 'Royal Candles'

Speedwell

Viola Penny 'Deep Blue'