Japanese name: ルリトラノオ(瑠璃虎尾) Scientific name:Veronica subsessilis
[Overview]
A perennial about 1 m tall, growing in grasslands on Mt. Ibuki in Shiga.
The stem is erect.
Leaves are simple and opposite, broadly ovate to ovate, 7–13 cm long and 2.5–6 cm wide, with a pointed tip and a rounded base, almost stalkless, and the leaf margin has pointed teeth.
Spike-like racemes arise from the stem tips and upper leaf axils and densely bear many flowers.
The corolla is bluish purple and 4-lobed, with two stamens projecting out of the flower.
The fruit is a flattened-spherical capsule.
[Cultivation]
Propagate from seed, by division, or by stem cuttings.
It prefers a sunny, well-drained site with fertile soil.
Water thoroughly when the soil surface dries.
In spring and autumn, apply slow-release fertilizer placed on the soil.
Pests and diseases include damping-off, powdery mildew, gray mold and aphids.