Begonia brevirimosa subsp. exotica – Pink-Marked Tropical Cane Begonia


Begonia brevirimosa subsp. exotica is a visually arresting tropical plant known for its bold pink markings layered over deep olive-green leaves. Originating from the rainforests of Papua New Guinea, it grows in a cane-like form and features long, upright stems with broad leaves that shimmer with metallic tones. The unique contrast of dark foliage and vivid pink streaks gives this Begonia its unmistakable appearance and popularity among collectors.


Standout Features of Begonia brevirimosa subsp. exotica



 
Foliage: Large leaves up to 30 cm long, with bright pink variegation across olive-green surfaces
 
Growth Habit: Upright cane-style stems reaching up to 1.5 m in height
 
Subspecies: Officially named in 2005, previously circulated under other names in cultivation


Origin and Botanical Background


This subspecies is native to the humid lowland forests of Papua New Guinea, where it grows in shaded, warm, and moist conditions beneath dense canopies. Its environment is defined by consistent rainfall, high humidity, and moderate temperatures — all factors that support lush leaf development and colorful pigmentation.

 
Native Habitat: Papua New Guinea tropical forests
 
Indoor Size: Typically grows 60–150 cm tall indoors with proper support and light
 
Growth Speed: Moderate to fast in warm, moist conditions
 
Toxicity: Potentially toxic if ingested; keep away from pets and children


Caring for Begonia brevirimosa subsp. exotica



 
Light: Prefers bright, indirect light; avoid direct sun, which can fade or scorch the foliage
 
Watering: Keep soil consistently moist; let the top layer dry slightly between waterings
 
Humidity: Needs 60–80% humidity for vibrant color and healthy growth
 
Temperature: Best range is 18–26 °C; avoid cold drafts or sudden drops
 
Soil: Use a rich, airy mix that drains well; add perlite or fine bark to increase structure
 
Repotting: Repot every 1–2 years or when roots outgrow the container
 
Fertilizing: Feed once a month with a diluted balanced fertilizer during active growth
 
Propagation: Easily propagated from stem cuttings placed in moist soil or water
 
Pruning: Cut back leggy stems to encourage bushier growth and control height


Common Growing Issues and Fixes



 
Fading Colors: Caused by low light; move to a brighter, indirect light location
 
Leaf Drop: Can result from low humidity or inconsistent watering
 
Pests: May attract spider mites or mealybugs in dry conditions; treat with neem or insecticidal spray


Additional Growing Notes


This Begonia’s bold coloring intensifies in higher humidity and consistent warmth. Support stems with canes or stakes as the plant matures, and avoid water sitting on the leaves to reduce fungal risk. Like many tropical species, its growth benefits from mimicking native conditions — filtered light, moist soil, and steady humidity.


Botanical Name Meaning


The genus name "Begonia" honors Michel Bégon, a French patron of botany. The species name “brevirimosa” refers to its short markings, while “exotica” reflects its vivid, unusual leaf coloration. This subspecies was formally named in 2005 by botanist Mark Tebbitt.


Frequently Asked Questions



 
Can it be grown outdoors?
Only in warm, frost-free areas; otherwise, it should be grown indoors or in a greenhouse
 
How do I keep the pink variegation vibrant?
Provide bright, indirect light and high humidity for best coloration
 
Does it flower?
Yes, it can produce small pink flowers, but the foliage is its main attraction


Grow Begonia brevirimosa subsp. exotica for its bold colors and tropical flair. Order now and add this statement plant to your collection.