Stromanthe care guide
Stromanthe thalia
Also known as: Stromanthe sanguinea, Stromanthe 'Triostar'
Pets and children
We haven't been able to confirm how this plant affects pets or small children. If any is eaten, consult a veterinarian or a doctor.
How often to water Stromanthe
- Spring–Summer (Mar–Sep)
- Every 4 days
- Water until it drains once the topsoil dries, as a guide; when too dry the leaves curl and droop.
- Autumn (Oct–Nov)
- Every 6 days
- The mix dries more slowly now; generally water a day or two after the surface dries.
- Winter (Dec–Feb)
- Every 10 days
- Water sparingly about three to four days after the soil dries, using room-temperature water during the warmer hours.
Light and placement for Stromanthe
The variegated leaves scorch in direct sun, so bright light through a sheer curtain is about right; too little light usually turns them greener with less cream and pink.
Overwintering Stromanthe
Overwintering guide: 10°C (50°F) or above
Tender, so overwinter indoors above about 10°C, away from cold nighttime windows, and offset dry heated air with misting or a humidifier.
Fertilizing and repotting Stromanthe
Fertilizer
Diluted liquid fertilizer about twice a month from May to September; avoid high-nitrogen feeds, which can dull the variegation, and give none in winter.
When to repot
Spring–Summer (Mar–Sep)
Common problems with Stromanthe
- Direct sun scorches the cream and pink areas of the leaves.
- Dry air browns and curls the leaf edges.
- Cold and wet soil in winter rot the roots.
Tips for growing Stromanthe
- It grows large, so repot and divide in early summer when root-bound.
- The wine-red undersides show when the leaves rise at night.
- Prone to spider mites, so mist the undersides and keep air moving.
These are AI-generated general guidelines. They vary with the variety, the placement and the pot size. For effects on pets or children, consult a veterinarian or a doctor.
Keep your plant log going
Greenery is a free app that keeps your plant care going, with watering reminders and photo records. Available on iOS and Android.
