The Colocasia dark-stem hybrids—‘Dark Stem’, ‘Black Stem’, or ‘Black Ripple’—are captivating specimens with their bold contrasts of deep stems and lush leaves. They’re robust growers with a striking architectural presence, ideal for moist garden spots or dramatic containers. If you’re looking to add a dramatic, tropical flair to your space, these are definitely worth considering.
Colocasia ‘Dark Stem’ is a cultivar of Colocasia esculenta distinguished by its very dark chocolate-brown to maroon stems and deep matte green leaves. It’s described as vigorous, tall, and tolerant of cooler temperatures, making it a hardy choice if overwintered in a dry greenhouse or tuber form.
A closely related name—‘Black Stem’—is used for Colocasia esculenta variants such as ‘Fontanesii’. This form features glossy, dark olive-green, heart-shaped leaves perched on purple-black, upright stems.
Though they share the dramatic dark stems and lush foliage, ‘Dark Stem’ and ‘Black Stem’ are often treated as distinct cultivars; some retailers even note “Burgundy Stem” as a separate cultivar.
Foliage: The leaves vary from a deep matte or glossy green to nearly iridescent dark shades, often heart- or arrow-shaped.
Stems: A hallmark of these hybrids—the stems stand out with dark maroon, nearly black, purplish-black tones that create strong visual contrast.
Can reach heights of around 1.5 m (5 ft) and spread via stolons or tubers, forming lush clumps.
Often vigorous growers, some varieties can send runners several meters before sprouting new shoots.
Light: From full sun to part shade. Some cultivars, like ‘Black Ripple’, are more compact and adaptable.
Soil & Water: Prefers moist to wet soils—bog-like or well-watered locations suit them best.
Winter care: In cold climates like the UK, lift and store tubers dry and frost-free, or treat like a dahlia. In milder zones, they may be grown outdoors seasonally
Hardiness: Generally frost-tender; hardy cultivation strategies include moving indoors or greenhouse protection.
Offers a dramatic architectural presence in gardens or containers due to its dark stems and bold foliage.
Ideal for accentuating tropical-themed landscapes or creating a standout feature in border plantings or pond edges.
| Attribute | Details |
|---|---|
| Cultivar Names | ‘Dark Stem’, ‘Black Stem’, ‘Fontanesii’, ‘Black Ripple’ |
| Foliage | Deep matte or glossy green, heart-shaped leaves |
| Stems | Dark chocolate, maroon, purplish-black |
| Habit | Up to ~1.5 m tall and wide, clump-forming via tubers/stolons |
| Light Needs | Full sun to partial shade |
| Water & Soil | Moist to wet, rich soils; thrives at pond edges or bog gardens |
| Winter Care | Lift tubers in frost-prone areas; greenhouse or indoor overwintering |
| Hardiness | Tender; best in USDA zones ~8–11 (for reference) |
| Design Use | Dramatic foliage accent, architectural interest |
The Colocasia dark-stem hybrids—‘Dark Stem’, ‘Black Stem’, or ‘Black Ripple’—are captivating specimens with their bold contrasts of deep stems and lush leaves. They’re robust growers with a striking architectural presence, ideal for moist garden spots or dramatic containers. If you’re looking to add a dramatic, tropical flair to your space, these are definitely worth considering.
| Size | 1 Litre, 2 Litre, 3 Litre, 5 Litre |
|---|
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