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Cryptocoryne wendtii ''grün''

Cryptocoryne wendtii ''grün''

Cryptocoryne wendtii 'grün' (green) is a classic, highly adaptable cultivar. With vivid, bright green, slightly ruffled leaves, it thrives easily in any setup, forming a dense and lush midground.

Taxonomy
Class:Liliopsida
Order:Alismatales
Family:Araceae
Subfamily:Aroideae
Genus:Cryptocoryne
Species:Cryptocoryne wendtii ''grün''

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Water Temperature

20 - 28 °C

pH Value

6 - 8

Water type

Freshwater

Light

Low

CO2

Low

Expected height

15 cm

Expected width

15 cm

GH

4 - 20 dGH

KH

1 - 18 dKH

Species description

Geographical Origin and Habitat: Endemic exclusively to the deeply shaded, fast-flowing tropical streams and heavily vegetated river margins of central and southwestern Sri Lanka. Cryptocoryne wendtii 'grün' (Green) is the foundational, wild-type morph of the legendary C. wendtii complex. It thrives as a deeply rooted amphibious survivor, evolving to forcefully drive its thick, woody rhizome deep into dense, rocky gravel and heavy mud. It is perfectly adapted to form massive, interconnected green colonies capable of withstanding rushing monsoonal torrents.
Taxonomy & Genetics: Scientifically classified within the Araceae family, it is universally recognized as one of the most famous, indestructible foundational species in the global aquascaping hobby. Taxonomically, C. wendtii is a highly variable species complex. The 'grün' (Green) variant represents the pure, unmutated genetic baseline of the species. Genetically, it completely lacks the mutations that cause red or brown pigmentation in other variants; its genetics force the massive production of pure, brilliant green chlorophyll across all of its tissues.
Physical Structure: The architectural structure of C. wendtii 'grün' is dominant, sprawling, and extremely dense. It is a massive rosette plant completely lacking vertical stems. The foundation is a thick, highly fleshy subterranean rhizome that deploys an incredibly aggressive white root system deep into the substrate. The leaves emerge directly from the crown on distinct, arching petioles. The foliage is the defining structural feature: strictly lanceolate to narrowly ovate, large (15-20 cm), with beautifully ruffled, wavy margins.
Color & Texture: The coloration is absolutely pure, solid, and incredibly vibrant. Grown submerged under standard lighting, both the upper and lower leaf surfaces are a brilliant, glowing apple-green to rich emerald. It entirely lacks any trace of brown, bronze, or magenta pigmentation, making it an incredibly clean visual element. The texture of the leaves is exceptionally smooth but visually dominated by elegant, sweeping, wavy crinkles along the entire edge, allowing the leaves to gracefully catch the aquarium light.

Care, breeding and tankmates

Lighting & CO2: It is an incredibly forgiving, highly adaptable plant universally recommended as the ultimate beginner Cryptocoryne. It will effortlessly survive in deeply shaded, low-tech aquariums, though its broad green leaves will stretch aggressively toward the light, making the plant tall and leggy. To force the plant to grow in a tight, compact, low-lying rosette and maximize its bright apple-green coloration, medium LED lighting is recommended. Pressurized CO2 is completely unnecessary, but its addition drastically speeds up growth.
Nutrition & Substrate: As a colossal Sri Lankan classic, C. wendtii 'grün' is an absolute, obligate root feeder. Its highly aggressive root system strongly demands a mature, heavily nutrient-dense substrate (minimum 5 cm / 2 inches deep). It strongly prefers high-quality aquasoil or a mature gravel bed heavily enriched with premium, iron-rich root tabs directly beneath the thick rhizome. If planted in sterile, inert gravel without heavy root supplementation, it will quickly stunt, turn violently yellow, and melt. It absorbs virtually zero nutrition from water.
Water Chemistry: Originating from the tropical streams of Sri Lanka, it is practically invincible regarding standard water parameters. It thrives effortlessly in heated tropical aquariums (22-26°C) and is exceptionally adaptable, comfortably tolerating both soft, acidic blackwater and moderately hard, highly alkaline tap water (pH 6.0 - 8.0). The single most critical environmental requirement is absolute chemical stability. It drastically prefers stable, unchanging parameters over perfectly optimized ones. It prefers moderate water flow to keep its wavy leaves clean.
Space Management & Placement: Due to its large size (15-20 cm height), sprawling habit, wavy edges, and brilliant pure-green coloration, C. wendtii 'grün' is an elite, foundational midground centerpiece plant. It should be meticulously planted to create massive, bright-green focal points directly behind the foreground, or tightly wedged around the base of central driftwood. Because it spreads relentlessly via incredibly thick subterranean runners, it will eventually form a stunning, impenetrable bright-green jungle that shadows smaller foreground plants.
Pruning: Pruning is a simple, low-maintenance procedure. Never attempt to trim a broad, wavy leaf in half; the cut edge will instantly turn black, rot, and destroy the elegant aesthetic. To prune dead, melting, or heavily shaded older leaves, you must reach down to the absolute base of the rosette and cleanly snap or slice the thick petiole directly at the gravel line. To manage its relentless, creeping spread, physically dig into the substrate and cleanly sever the thick subterranean runner connecting the baby clone to the mother rhizome.
Risks & Diseases: The absolute greatest threat to C. wendtii 'grün' is the infamous "Crypt Melt." This massive species is highly sensitive to sudden, extreme environmental instability. A rapid change in pH, a massive water change with cold water, or forcefully uprooting the established plant will trigger a violent biological panic, causing all the beautiful green wavy leaves to dissolve into a slimy, foul mush within 24 hours. However, the thick, fleshy underground rhizome is completely indestructible; do not remove the roots, and it will regrow.

Geographic Origin and Distribution

Endemic exclusively to the deeply shaded, fast-flowing tropical streams and heavily vegetated river margins of central and southwestern Sri Lanka. Cryptocoryne wendtii 'grün' (Green) is the foundational, wild-type morph of the legendary C. wendtii complex. It thrives as a deeply rooted amphibious survivor, evolving to forcefully drive its thick, woody rhizome deep into dense, rocky gravel and heavy mud. It is perfectly adapted to form massive, interconnected green colonies capable of withstanding rushing monsoonal torrents.

Origin

South and Southeast Asia

Plant profile

Placement
Midground
This bright green variety is perfectly suited for the midground, where it can form dense, bushy thickets. In small nano aquariums, it can be used as a vibrant background plant. Grouping several individuals together creates a seamless transition from foreground carpets to background stem plants.
Botanical form
Rosette
It grows in a classic rosette pattern, featuring lanceolate leaves with characteristically wavy or slightly hammered margins. The foliage is consistently bright to medium green, offering a very fresh and natural appearance. The robust leaves tend to grow slightly more upright compared to some other wendtii varieties.
Growth
Medium
This variety has a moderate growth rate, slightly faster than some rarer cultivars but slower than many stem plants. With CO2 injection and medium to high lighting, it produces new leaves consistently. Its manageable growth makes it an excellent choice for long-term aquascapes requiring little maintenance.
Substrate
High
As a predominantly root-feeding plant, Cryptocoryne wendtii ''grün'' requires a fertile substrate to achieve dense, vibrant green growth. An aqua soil or a well-fertilized gravel bed with a depth of 2 to 3 inches allows its robust root system to firmly secure the plant in place. Continuous access to iron and other trace elements through the substrate helps prevent yellowing and promotes broad, healthy leaves. Once established, it is best left untouched, as its roots form a dense network that resents disturbance.
Column fertilization
None
Column fertilization is not the primary nutrient source, but regular dosing of trace elements and potassium prevents pinholes in older leaves. It is important to balance liquid fertilizers with CO2 and lighting to avoid algae issues. Iron dosing can help intensify the pink and orange leaf coloration.
Root fertilization
Required
Root feeding is crucial for this plant to reach its full potential. A high-quality soil substrate or the frequent use of nutrient-rich root capsules ensures strong root development and vibrant foliage. Robust root health also helps the plant resist melting during environmental changes.
Trimming
Occasional
Trimming simply involves removing older, larger leaves from the outside of the rosette as they begin to shade other plants or show signs of decay. Always cut as close to the crown as possible with sharp scissors. Avoid cutting through the middle of the leaves.
Propagation
Rhizome division, Runners
Propagation occurs naturally through runners that emerge from the base of the mother plant. Once these daughter plants develop several leaves and a distinct root system, they can be carefully detached. Replant them in the substrate, ensuring the crown is not buried too deeply.
Sensitivity
Moderate
Like most Cryptocoryne species, 'Florida Sunset' is susceptible to 'Crypt melt' when parameters change rapidly. It is especially sensitive to abrupt changes in lighting intensity or water hardness. Usually, the root system remains intact and will produce new leaves adapted to the current conditions.
Layout role
Midground, Foreground
In the aquascape, its pure green color makes it a highly versatile transition plant in the midground. It works exceptionally well to soften the edges of rocks and driftwood without drawing too much attention with contrasting colors. Its bushy texture contrasts beautifully with fine-leaved foreground plants.

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Recommendations grouped by close relatives, companion choices, and similar care.

Variants and close relatives

Same atlas type, nearby scientific identity, genus, or family.

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Cryptocoryne affinis

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Cryptocoryne cordata var. siamensis

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Cryptocoryne cordata var. siamensis 'Rosanervig'

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Cryptocoryne balansae

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Giant Cryptocoryne Cordata

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Cryptocoryne blassii

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Cryptocoryne cordata var. blassii

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Anubias barteri var. nana 'Round Leaf'

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Recommended companions

Compatible cards from coherent ecosystems with matching parameters.

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Similar care

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Bucephalandra sp. "Bukit Kelam / Sintang"

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Bucephalandra sp. "Melawi"

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Last updated: 06/30/2026
Cryptocoryne wendtii ''grün'' Care Guide & Tank Setup | Atlarium