How to care for Triostar Stromanthe
Stromanthe thalia 'Triostar' · Marantaceae
Dramatic lance-shaped leaves splashed with cream and pink above and painted magenta beneath — few foliage plants are this loud. It is a prayer plant relative with matching demands: high humidity, soft water, and steady warmth. The heavily variegated leaves are especially prone to browning. Water roughly every 5 days while it's growing (about every 9 in winter), give it bright, indirect light, kept above 61°F (16°C) — it wants humid air.
Care at a glance
Keep evenly moist with filtered or rainwater; the variegated tissue browns quickly from drought or mineral buildup.
Bright, filtered light keeps the pink vivid; direct sun scorches the cream sections fast.
Quarter-strength balanced fertilizer monthly during the growing season.
Mistakes that kill this plant
- Dry air plus tap water — leaves brown faster than they are replaced.
- Cold drafts below 16 C.
- Letting the root ball dry out completely.
Seasonal tips
- Humidity above 55–60 percent through winter is the difference between stunning and shabby.
- Rotate regularly — it leans hard toward the light.
- Divide the rhizome in spring if you want more plants; it resents division at other times.
Is it safe for pets?
We couldn’t place Triostar Stromanthe on a toxic or a non-toxic list, so its toxicity is unconfirmed — which is not the same as safe.
Full pet-safety details for cats & dogsCare for your Triostar Stromanthe on autopilot
Ploomily turns this guide into a Living Schedule — watering tuned to your city’s climate, the season, the pot and the light, and feeding tuned to that same pot, drainage and light, following the growing season and pausing while the plant rests. The founding price in force today is shown in full before you confirm, and locked for as long as you stay subscribed — with 30 days to change your mind.
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Toxicity here is informational, not a safety guarantee. Those are our own records, compiled by following the ASPCA's published toxic and non-toxic plant lists and Pet Poison Helpline's plant poison list rather than copied from them — confirm anything that matters against those lists or with your vet. If your pet ingested this plant, contact your vet or the ASPCA Animal Poison Control Center at (888) 426-4435.