EVERGREEN

Plant Encyclopedia

Veronica subsessilis ("Ruritorano")

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.

Details

Names
Japanese: ルリトラノオ(瑠璃虎尾)、イブキルリトラノオ(伊吹瑠璃虎尾)
Life form
Perennial
Habit
Terrestrial
Planting (or sowing) season
March, April, October, November
Flowering season
July, August
Distribution or origin
Japan (Mt. Ibuki, Shiga)
Height
1000 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Opposite
Leaf margin
Serrate
Inflorescence
Raceme
Flower color
Blue, Purple
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Propagation
Seed, Division, Bud cuttings
Sun exposure
Full sun
Water needs
Moderate
Soil needs
Required
Tolerance
Cold tolerance
Suitable uses
Potted plant
Diseases
Damping-off, Powdery mildew, Gray mold
Pests
Aphids
Designated plants
VU: Vulnerable (Class II)
Japan Flower Trade Code
16644

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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