How to Grow Ludwigia glandulosa

Ludwigia glandulosa

aquatic plant

Ludwigia glandulosa is a semi-aquatic to fully aquatic stem plant native to Central and South America, prized in aquariums for its striking red and green coloration. It grows upright with narrow, lance-shaped leaves that display vibrant reddish undersides when provided with adequate light and nutrients. This versatile plant can be grown emersed (partially above water) or fully submerged, making it suitable for both paludariums and traditional aquascapes.

Growing Conditions

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Sun: High light intensity required; 8-10 hours daily under 40-60 PAR; full-spectrum LED or T5 fluorescent lighting recommended

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Water: Requires consistent moisture; keep substrate moist to wet. For fully aquatic cultivation, ensure stable water parameters with regular water changes (20-30% weekly). Prefers soft to moderately hard water with good circulation and oxygenation.

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Spacing: 4-6 inches between individual plants inches

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Days to maturity: 30-60 days to reach planting size; 90+ days to full maturity

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Planting depth: Plant stems 1-2 inches into substrate; can also be used as a floating plant or attached to hardscape

Soil

Type: Aquarium substrate (nutrient-rich sand, specialized plant substrate, or fine gravel)

pH: 6.0-7.0

Amendments:

Liquid fertilizers (comprehensive micronutrients) Macronutrients (nitrogen, phosphorus, potassium) Root tabs for substrate-based nutrient delivery CO2 supplementation (optional but beneficial)

Growing Zones

Find your zone →

Thrives in tropical and subtropical aquatic environments; not suited to outdoor temperate zones without heating

warm tropical waters (68-82°F / 20-28°C)

Growth Stages

Establishment

1-2 weeks

Young stems with minimal roots establishing in substrate; leaves are small and predominantly green

Avoid moving plant frequently; maintain stable water parameters and moderate light to reduce transplant shock

Vegetative Growth

3-6 weeks

Stems elongate with increasingly larger leaves; red coloration begins to develop on leaf undersides and new growth

Increase light intensity to encourage red pigmentation; dose fertilizers regularly; trim tops to encourage bushier growth

Development

4-8 weeks

Plant reaches desired size with full-sized leaves showing vibrant red undersides; stem thickness increases

Maintain consistent high light (50+ PAR); continue nutrient dosing; consider CO2 supplementation for optimal coloration

Maturity

Ongoing with proper maintenance

Fully developed plant with dense foliage; can produce small yellow flowers in emersed conditions

Regular pruning maintains shape and encourages branching; continue full fertilization and lighting

Companion Planting

Plan your garden →

Plant with:

Rotala rotundifolia Hemianthus callitrichoides Alternanthera reineckii Cryptocoryne wendtii Anubias barteri Echinodorus tenellus

Avoid planting near:

Allelopathic plants that release growth inhibitors Very aggressive fast-growing plants that may shade it (only if light is limited) Plants requiring significantly different water parameters

Common Pests

Reduce light duration or intensity; increase water changes; add algae-eating fish or invertebrates (Amano shrimp, otocinclus); consider algaecide treatments as last resort
Manual removal; introduce snail-eating fish; reduce food waste in tank to eliminate snail nutrition source
Manual removal with fine tweezers; increase water flow; reduce nutrient overload; spot-treat with hydrogen peroxide
Dose comprehensive fertilizers; add root tabs; ensure adequate light for nutrient uptake; test water parameters

Uses

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Aquascaping & Tank Decoration

Aquarium

Ludwigia glandulosa is a popular stem plant for planted aquariums and aquascapes due to its vibrant red coloration and vertical growth habit. It serves as an excellent mid-ground or background plant that adds structural interest and creates natural-looking aquatic landscapes. [source]

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Fish Habitat & Spawning Medium

Wildlife

Dense stem growth provides shelter for small fish and fry, reducing predation and stress. The plant offers hiding spots for invertebrates and serves as a breeding substrate for various aquarium fish species. [source]

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Water Filtration & Tank Health

Household

As a fast-growing stem plant, Ludwigia glandulosa actively removes excess nutrients (nitrogen, phosphorus) from water, helping to reduce algae growth and improve overall water quality in the aquarium. [source]

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Herbal & Traditional Uses

Medicinal

In its native range, Ludwigia species have been used in traditional South American herbalism for various remedies. Some cultures use Ludwigia extracts for digestive and anti-inflammatory applications, though scientific validation remains limited. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

For propagation, cut healthy stem sections 3-4 inches long with scissors just below a leaf node; replant cuttings in substrate with base 1-2 inches deep. New roots develop within 1-2 weeks. Remove lower leaves from cuttings to prevent rot. Can harvest emersed flowers for seed production if plant is grown partially above water.

Fun Facts

🌱 Ludwigia glandolosa can dramatically change color based on light intensity and nutrient availability—stronger lighting intensifies the red pigmentation, while low light conditions keep leaves predominantly green.
🌱 This species is amphibious and can transition between fully submerged aquatic growth and emersed (above-water) cultivation, making it ideal for paludariums and riparium setups where it may even produce small yellow flowers.
🌱 The plant's ability to thrive in both soft and moderately hard water makes it adaptable to various aquarium types, from planted tanks to community setups, though it performs best with CO2 supplementation and comprehensive fertilization.

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