How to Grow Red Sword Plant
Red Sword Plant
Echinodorus barthii
aquatic plantThe Red Sword Plant is a popular aquarium plant known for its striking deep red to burgundy foliage that intensifies under high light conditions. It is a rosette-forming stem plant that grows moderately fast and can reach substantial heights, making it ideal for mid to background placement in aquascapes. This plant is relatively hardy and tolerant of varied water conditions, making it suitable for both beginner and experienced aquarists.
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Example Red Sword Plant timeline · Pittsburgh, PA (Zone 6b)
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Plant Red Sword Plant
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Red Sword Plant
Around Apr 21≈ 4 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Red Sword Plant dates for your own zip code.
Growing Conditions
Soil
Growth Stages
Acclimation
1-2 weeksNewly introduced plant may appear dull or pale as it adjusts to aquarium conditions
Maintain stable water parameters, provide moderate lighting, ensure good water circulation; avoid sudden parameter changes
Establishment
2-3 weeksPlant develops new leaves and begins rooting into substrate; original outer leaves may die back
Start liquid fertilizer dosing; provide 8-10 hours of light daily; remove any decaying outer leaves
Vegetative Growth
4-6 weeksPlant produces multiple new leaves in a rosette pattern; coloration gradually deepens
Maintain consistent fertilization (NPK and micros); increase lighting intensity for more red pigmentation; monitor for nutrient deficiencies
Mature Growth
OngoingPlant reaches full size with deep red to burgundy foliage; may produce runners or daughter plants
Continue regular fertilization and water changes; trim runners if desired; manage plant density to prevent shading of lower plants
Propagation (Optional)
VariablePlant develops runners with adventitious plantlets that can be separated and replanted
Allow runners to develop 3-4 leaves before detaching; plant new plantlets in substrate at proper depth; maintain nutrient levels
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Maintain proper lighting duration and intensity; increase water change frequency; ensure adequate CO₂; add algae-eating fish or invertebrates (e.g., Amano shrimp, nerite snails); reduce excess nutrients
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Remove manually if population becomes excessive; reduce food waste; introduce snail-eating fish if desired; use specific snail traps
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Dose liquid fertilizers regularly according to tank bioload; test water parameters; increase water change frequency if nutrient accumulation occurs; consider CO₂ injection
Uses
Aquarium Decoration & Aesthetics
HouseholdThe Red Sword Plant serves as an attractive mid to background focal point in freshwater aquariums, with deep red coloration adding visual interest and creating natural-looking aquascapes. Its moderate size and rosette growth habit make it versatile for various tank designs and layouts. [source]
Fish & Invertebrate Habitat
WildlifeProvides shelter, foraging surfaces, and breeding areas for aquarium fish and invertebrates. The leaf structure offers surfaces for biofilm growth that feeds small fish and shrimp. [source]
Water Quality Improvement
HouseholdAs a rooted aquatic plant, it helps remove excess nutrients from the water column through nutrient uptake, reducing algae growth and improving overall water quality in the aquarium. [source]
Oxygen Production
HouseholdThrough photosynthesis, the Red Sword Plant produces oxygen that benefits fish and other aquatic organisms, contributing to a healthier aquatic ecosystem. [source]
Harvest Tips
Red Sword Plants are not harvested in the traditional sense. Instead, manage growth by trimming outer leaves if they become damaged or excessively tall; propagate runners by separating plantlets with 3-4 developed leaves and replanting in substrate. Perform light pruning to maintain desired aquascape aesthetics and prevent shading of neighboring plants.
Fun Facts
- 🌱 The intense red coloration of Red Sword Plants is enhanced by high-intensity lighting and can be further deepened by CO₂ supplementation, which increases photosynthetic capacity and pigment production.
- 🌱 Red Sword Plants are part of the genus Echinodorus, which contains over 30 species of aquatic plants native to South America, many of which are popular in the aquarium hobby.
- 🌱 Unlike many aquatic stem plants, Red Sword Plants are rhizomatous rosette plants, meaning they grow from a central crown rather than producing a long stem, making them structurally distinct and suitable for specific aquascape positions.
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