Plectranthus thyrsoideus
flowering bush coleus
P. thyrsoideus is a bushy evergreen perennial with heart-shaped, round-toothed leaves to 10cm long, and spikes of bright blue flowers 1cm long, mostly in winter
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Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Blue | Green |
Position
- Partial shade
Aspect
South–facing
Exposure
Sheltered Hardiness
H2Botanical details
- Family
- Lamiaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Genus
A genus of annual or perennial herbs or shrubs, some of which can be succulent or tuberous in nature, and one of the easiest plants to propagate. Their velvety leaves add vibrant shades of red, pink, green and purple to beds and borders, pots and containers
- Name status
Correct
- Plant range
- S Trop. Africa
How to grow
Cultivation
Grow under glass in areas prone to frost; may be grown outside in the summer. Use a John Innes No 2 compost and position in dappled shade. Apply a balanced liquid fertiliser once a month and water freely. In winter much less water is required
Propagation
Propagate by seed in temperatures of 19-24°C (66-75°F) when they are ripe. Can also be propagated by softwood cuttings any time of year
Suggested planting locations and garden types
- Patio and container plants
Pruning
Pinch out tips of young plants to encourage bushy growth
Pests
Generally pest-free
Diseases
Generally disease-free
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.