Flower:
Tubular flowers are a shade of periwinkle-blue and are sweetly scented. The blooms are held in dense cymes atop upright stems and are produced from June through August, though this is dependent on when seed was sown. Seed sown under glass during the winter will result in spring flowers.
Flower colour: Blue
Flower shape: Tubular flowers in cymes
Flowering time: June, July, August
Foliage:
Small, hairy mid-green leaves are lanceolate in shape. The leaves are held in whorls on square, upright stems.
Foliage Senescence: Deciduous
Foliage Shape: Lanceolate
Propagation:
Seed.
Cultivation:
Best in sun or shade in fertile, moisture-retentive soil that is well-drained.