Water Milfoil
Myriophyllum spicatum
aquaticWater Milfoil is a fully submerged aquatic plant with feathery, whorled leaves that create a delicate underwater appearance. It is an aggressive grower and excellent oxygenator, making it ideal for established aquariums and ponds. The plant can quickly fill vertical space and provides dense shelter for fish and aquatic invertebrates.
Common Problems
Select the problem your Water Milfoil is experiencing to get a treatment guide.
Care Guide
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Light
Moderate to bright light; 8-10 hours daily. Grows in partial shade but develops better color and density with full light.
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Water
Fully submerged; thrives in cool to temperate water, 60-75°F (15-24°C). Prefers slightly acidic to neutral pH (6.0-7.5). Tolerates moderate water movement.
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Soil
No soil required; plant in aquatic substrate or anchor with plant weights. Does not require rooting medium.
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Fertiliser
Add liquid aquatic plant fertilizer bi-weekly during growing season. Nitrogen and micronutrients promote robust growth.
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Temperature
Optimal 60-75°F (15-24°C). Dies back in temperatures below 50°F (10°C).
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Humidity
Fully aquatic; naturally saturated environment required.
Toxicity
check_circleSafe for Catscheck_circleSafe for Dogscheck_circleSafe for Children
Non-toxic. Completely safe in aquariums and water gardens.
Common Diseases
Common Pests
Seasonal Care
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Resume regular watering and feeding as growth picks up.
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Peak growing season. Water and feed regularly.
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Reduce watering as growth slows. Stop heavy feeding.
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Minimal watering and feeding. Protect from frost if needed.