Morning Glory
Japanese Morning Glory Common Morning Glory

Scientific Name: Ipomoea nil
Family: Convolvulaceae

Flower Language

  • Fleeting love
  • Affection
  • Unity
  • Ephemeral love
  • Strong bond

Characteristics

Colors:

Description

Morning Glory is a representative flower of Japanese summer, first brought to Japan by envoys to Tang China in the late Nara period as medicinal herbs. Horticultural techniques were established during the Edo period, creating numerous varieties. It blooms early in the morning and withers by noon, and being a climbing plant, it's also used as a green curtain. The seeds are still used as a herbal medicine called Kengoushi.

Trivia

  • One of the plants where breeding techniques reached the highest level during the Edo period
  • Blooms before dawn and fully opens by 4 AM, then withers by noon
  • Climbing plant growing up to 3-4 meters, now used as green curtains for energy conservation
  • Seeds were so valuable in ancient China they were traded for cattle

Uses

Ornamental
  • Garden decoration
  • Green curtains
  • Container gardening
  • Hedging
Medicinal
  • Seeds (Kengoushi) used as laxative
  • Diuretic effects
  • Intestinal parasite removal

Caution: Seed use requires expert guidance

Culinary

Generally not suitable for consumption

Other
  • Educational plant for schools
  • Environmental conservation (greening)
  • Herbal medicine material

Toxicity

Toxicity Level: Mild

Toxic Parts: Seeds contain medicinal components

Symptoms: Excessive seed consumption may cause diarrhea and abdominal pain

Passion Flower
Blue Passion Flower Common Passion Vine

Scientific Name: Passiflora caerulea
Family: Passifloraceae

Flower Language

  • Hidden passion
  • Holy love
  • Faith

Characteristics

Colors:

Description

Passion flower is a climbing plant native to Central and South America, introduced to Japan around 1730. It gets its Japanese name from petals resembling a clock face and three-divided pistils looking like clock hands. The English name 'passion flower' means 'flower of Christ's passion,' named by missionaries who saw the flower structure as symbolizing Christ's crucifixion. It produces mysteriously shaped beautiful flowers from summer to early autumn.

Trivia

  • About 500 species are distributed in tropical regions of Central and South America
  • Passion fruit comes from Passiflora edulis (edible passion flower)
  • Named after clocks in many countries due to the clock-like flower structure
  • Cultivated in many churches as a Christian symbol

Uses

Ornamental
  • Garden decoration
  • Greenhouse cultivation
  • Arch and fence decoration
  • Container gardening
Medicinal
  • Some species are said to have sedative effects
  • Used in folk medicine for insomnia improvement

Caution: Ornamental varieties are not suitable for medicinal use

Culinary
  • Fruits of some species (passion fruit)
Other
  • Religious decoration
  • Educational plant (flower structure learning)

Toxicity

Toxicity Level: Mild

Toxic Parts: Some ornamental variety fruits may be toxic

Symptoms: Eating ornamental fruits may cause abdominal pain and nausea

Silk Tree
Persian Silk Tree Pink Silk Tree Mimosa

Scientific Name: Albizia julibrissin
Family: Fabaceae

Flower Language

  • Heart fluttering
  • Reverie
  • Peace

Characteristics

Colors:

Description

Silk tree means 'sleeping tree' and gets its name from the sleep movement where leaves close together at night. Native to regions from Iran to southern China, it also grows wild in Japan south of Honshu. It produces beautiful pink flowers in summer, characterized by long silk-like stamens. In China, it symbolizes marital harmony, which is the origin of its Chinese characters meaning 'tree of conjugal bliss.'

Trivia

  • Called 'sleeping tree' because leaves close at night like sleeping
  • Scientific name Albizia comes from an 18th century Italian nobleman's name
  • Flower fragrance becomes stronger at night to attract nocturnal insects
  • Mentioned in the Manyoshu poetry collection under the name 'nebu'

Uses

Ornamental
  • Garden trees
  • Street trees
  • Park plantings
  • Landscape trees
Medicinal
  • Bark (Gokanhi) used for back pain and as sedative
  • Diuretic effects
  • Tonic effects

Caution: Toxic to pets, caution required. Consult experts for medicinal use

Culinary

Not suitable for consumption

Other
  • Landscaping
  • Timber use (furniture)
  • Herbal medicine material

Toxicity

Toxicity Level: Moderate

Toxic Parts: Bark, Leaves, Flowers, Seeds

Symptoms: Pet ingestion may cause vomiting, diarrhea, abdominal pain, hyperventilation, coma, and convulsions