Showy Gentian (Gentiana decora Pollard)

Gentianaceae (Gentian Family) Synonym(s): Showy Gentian, Appalachian Gentian Base Flower Color: BlueReproductive Phenology: Sep, OctBloom Notes: Flowers may be blue, purple, violet, white, or white with blue, purple, or violet stripes. For more information about this plant, Click Here.

Pickerelweed (Pontederia cordata L. var. cordata)

Pontederiaceae (Pickerelweed Family) Synonym(s): Pickerelweed, Pickerel Rush Base Flower Color: BlueReproductive Phenology: Mar, Apr, May, Jun, Jul, Aug, Sept For more information about this plant, Click Here.

Passion Flower (Passiflora incarnata L.)

Passifloraceae (Passion-Flower Family) This is one of Tennessee’s two state wildflowers. The other is Tennessee Coneflower (Echinacea tennesseensis). Synonym(s): Maypop, Purple Passionflower, Purple Passion Vine, Apricot Vine Base Flower Color: BlueReproductive Phenology: May, Jun, Jul, Aug, Sept, Oct, Nov For more information about this plant, Click Here. Similar Species: Yellow Passion Flower (Passiflora lutea L.)

Oakleaf Hydrangea (Hydrangea quercifolia Bartram)

Hydrangeaceae (Hydranga Family) Synonym(s): Oakleaf Hydrangea, Oak-leaf Hydrangea Base Flower Color: White, BlueReproductive Phenology: May, Jun, Jul For more information about this plant, Click Here.

Zigzag Spiderwort (Tradescantia subaspera Ker Gawl. var. subaspera)

Commelinaceae (Spiderwort Family) Synonym(s): Zigzag Spiderwort, Wideleaf Spiderwort Base Flower Color: BlueReproductive Phenology: Jun, JulBloom Notes: Blooms are rarely white. For more information about this plant, Click Here.

Common Periwinkle (Vinca minor L.)

Apocynaceae (Dogbane Family) Reproductive Phenology: Apr, May, JunBloom Description: Blue, Purple For more information about this plant, Click Here.

Blueflower Eryngo (Eryngium integrifolium Walter)

Apiaceae (Carrot Family) Synonym(s): Blue-flower Coyote-Thistle Base Flower Color: BlueBloom Date: Aug, Sept, OctBloom Notes: Very rare in TN/KY. For more information about this plant, Click Here.

Indian Tobacco (Lobelia inflata L.)

Campanulaceae (Bellflower Family) Synonym(s): Puke Weed, Bladder-pod Lobelia Base Flower Color: BlueReproductive Phenology: Jul, Aug, Sept, Oct, NovNotes: Indian tobacco is the source of an alkaloid (lobeline) that is used in anti-smoking preparations. For more information about this plant, Click Here.

Blue Sage (Salvia azurea Benth. var. grandiflora

Lamiaceae (Mint Family) Synonym(s): Pitcher Sage, Big Blue Sage, Azure Sage, Giant Blue Sage Base Flower Color: BlueReproductive Phenology: Aug, Sept, Oct For more information about this plant, Click Here.