Photos of this Tropica reference. Appearance may change after immersion.
Tropica
Helanthium tenellum 'Green'
Helanthium tenellum 'Green' · Botanical family: Alismataceae
A carpet that stays green.
Foreground Growth
Slow Height
5 - 15+ cm
1 cup · In-vitro
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Foreground
Picture its place. Understand its size.
This Helanthium tenellum form stays bright green even under strong light. Small rosettes spread into a carpet when light and substrate conditions suit them. It works in a natural foreground rather than a uniformly clipped lawn.
Tropica guide after roughly two months. “+” means the plant may exceed this height; it is not an adult maximum.
The supplied cup · In-vitro
What it needs. And why.
Light
LowKeep the plant lit without aiming for maximum intensity. Lighting duration does not replace the intensity reaching the leaves.
CO₂
LowLow demand does not mean no carbon. Injection is generally optional; growth also depends on light and nutrients.
Nutrition
Roots and leaves contribute to nutrition. Match nutrient additions to the substrate, water and observed growth rather than automatically combining fertilisers.
All parameters and their sources
- Botanical family
- Alismataceae
- Listed origin
- Cultivar
Temperature, pH and hardness: this Tropica reference does not publish numerical ranges.
Needs and numerical guides come from the cited Tropica reference. Placement and layout advice are suggestions from Sousleau. Missing values are not inferred from a different species.
Read this plant’s Tropica profile ↗Tropica · 067A TC
From the cup to your layout.
A few steps suited to this plant for a good start.
1Rinse off the growing medium
Gently remove the plant from its cup and rinse off the culture gel before placement.
2Divide gently
Prepare small healthy portions without crushing leaves, stems or roots.
3Plant in the substrate
Space portions so light and water can pass between them. Bury the roots while keeping rosette crowns exposed.
Pruning and ongoing care
Separate rosettes when planting. Cut runners crossing the intended boundary and support root nutrition.
Understanding acclimatisation
An In-vitro cup contains young plants. Shape, colour and size can change after immersion. Watch new growth, remove deteriorating parts and keep conditions stable. Report plants damaged on arrival; acclimatisation does not explain every problem.