Also known as Large-Leaf Pondweed · Large-Leaved Pondweed · Largeleaf Pondweed
Potamogeton amplifolius, the Broad-leaved Pondweed, is an aquatic perennial herb with submerged and floating leaves, found in freshwater habitats.
At-a-glance light, water, soil, and growing conditions from plant data
Full sun to partial shade
75% intensity
Prefers bright, indirect sunlight or partial shade. Direct, intense sun can sometimes lead to excessive algae growth in the pond.
Always submerged
100% intensity
Maintain consistent water levels, ensuring the entire plant is underwater. Use clean, still water. Avoid stagnant or polluted conditions.
Silty or sandy substrate in aquatic environments
50% intensity
Temperate
50% intensity
Thrives in cool to moderate water temperatures, typically between 15-25°C (59-77°F). Protect from extreme heat and freezing.
Aquatic
50% intensity
Low
25% intensity
Rarely needs fertilization. Nutrients are usually obtained from the substrate and water. Over-fertilization can cause algal blooms.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Broad-leaved Pondweed is an aquatic plant, so it requires constant submersion in clean, still water. Ensure the entire plant, including roots and leaves, remains fully underwater.
Avoid stagnant or polluted water, as this can harm the plant and its environment. Maintain a consistent water level.
Pruning for Broad-leaved Pondweed is minimal. Remove any dead, decaying, or yellowing leaves to maintain water quality and plant health. Overgrowth can be managed by gently thinning out excess foliage.
This is best done during the growing season to encourage new, healthy growth.
Propagation is primarily achieved through vegetative means. The plant readily fragments, with sections of stem or rhizome capable of forming new plants. You can also divide larger plants by separating rooted sections.
Simply replant these fragments into suitable substrate in the pond.
Repotting is generally not required for Potamogeton amplifolius.
If planted in a container or substrate that has become depleted or waterlogged, you can gently move it to a larger container with fresh, nutrient-rich aquatic soil.
Ensure the new location offers adequate depth and stable conditions.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Broad-Leaved Pondweed (Potamogeton amplifolius)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| kingdom | Plantae |
| division | Tracheophyta |
| class | Liliopsida |
| order | Alismatales |
| family | Potamogetonaceae |
| genus | Potamogeton |
| species | Potamogeton amplifolius |
Answers based on plant encyclopedia data
