B and T World Seeds' reference number:
|Type of plant - annual
Flower or inflorescence:
YELLOW - ORANGE, 4-8mm. dia., stellate
broad ovate, 2-18mm. wide
|Height, in meters: 0.5
Height, in feet: 1.65
|Hypericum japonicum sales history
| Parts of Hypericum japonicum are considered toxic.
Synonyms (alternative names) for Hypericum japonicum:
|Hypericum chinense, Triadenum japonicum,|
Common names for Hypericum japonicum:
|Matted St. John's Wort,|
is included in the following
B and T World Seeds flowering plant categories.
|15||: Australian Natives and Introduced Species|
|23||: New Zealand Natives and Introduced Species|
|38||: Indian Native and Introduced Plants|
|50||: Japanese Native and Introduced Plants|
|51||: Chinese Native and Introduced Plants|
|53||: Bedding Plant Seed List|
|72||: Russian Native and Introduced Plants (Central)|
|73||: East Asian Native and Introduced Plants|
|131||: Toxic Plants|
|Some of the deadliest known poisons are found in plants. Some major food plants, eaten by millions of people every day, have toxic parts.|
Some knowledge about growing from seed is necessary to germinate even the easiest seeds.
Most seeds require humidity to germinate, even desert plants like
require that their growing medium remains moist until germination.|
Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet,
the seeds may not get the oxygen they require.
Hypericum japonicum seeds will usually germinate in 30-90 days, even under good conditions germination may be erratic.