The plant from which Tonburi comes. The dried seeds can be eaten and are a must in Japanese cooking called ‘tonburi’. The texture is similar to caviar. In natural medicine the seeds are also used to prevent hypertension, obesity and arterioscleriosis. The plant is used as forage for livestock, for erosion control, and as an ornamental plant. Phytoremediation plant.
Annual plant growing up to 2m with green lanceolate leaves. The leaves become orange, red or violet at the end of the summer. Yellow flowers. It adapts to any type of soils.
Sowing with day temperatures of 20ºC/25ºC.Lightly cover the seeds and maintain the humidity until germination is completed.
Calendar| I | II | III | IV | V | VI | VII | VIII | IX | X | XI | XII | |
| Sow outdoors | ||||||||||||
| Harvest |
| Average germination (%) | 70 |
|---|---|
| Climate Zone | Temperate areas, Warm areas |
| Flower colour | Yellow |
| Foliage color | Autumn, Orange, Purple, Red |
| Germination (in days) | 7-14 |
| Hardiness | Non hardy |
| Life cycle | Annual |
| Plant use | Balcony & Courtyard, Baskets & Containers, Culinary, Erosion control, Fodder, Gardening, Greenfilter, Herbs garden, Medicinal, Urban garden, Wild garden |
| Seeds per gram | 1.000 |
| Soil - Moisture | Well-drained |
| Soil - Type | No preference |
| Sunlight - Exposure | Partial shade, Sun |
| Watering | Regular |

Easter 2026
This week we will only be shipping orders on Monday 30 March to ensure that orders arrive before bank holidays.
We will resume deliveries from Tuesday 7 April 2026.
The nursery will be open until Thursday 2 april. If you would like to collect your order or visit us we would be delighted to welecome you from 8 am to 2 pm.
Happy Easter !