Crucified pondweed
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Crucified Pondweed as an Oxygen Plant
Ada Hofman talks about them in her book, and for good reason. Fountain herbs are very good oxygen plants and fine for use in the pond. Crucified Pondweed is therefore no exception. It is also a nice addition to your stock of Glossy Pondweed. Many nutrients are absorbed to ensure rapid growth. Float and filamentous algae are given less chance and the water remains clearer. Cruciferous pondweed is also allelopathic. It secretes a substance that reduces the growth of algae. In addition to these properties, which are pleasant for pond life, they are decorative plants which also enhance the underwater landscape of your pond.
Cruciferous pondweed Properties
- position: sun
- stem length: up to 1 metre
- planting depth 50-100 cm
- substrate: yes, necessary.
- Appreciates nutrient-rich water.
Frequently asked questions
What are the benefits of Cruciferous Pondweed for your pond?
Crucified pondweed is less well known than Glossy pondweed but is certainly a good choice when it comes to oxygen production and algae control. Like Glossy pondweed, Cruciferous pondweed roots in the soil.
What is the flowering time of Cruciferous Pondweed?
Cruciferous pondweed (Potamogeton crispus) blooms from May to August. The small flowers are greenish and grow in spike-shaped clusters above the water surface. The flowers are subtle and contribute to reproduction, but the plant spreads mainly through vegetative growth of its stems.
Is Crucified Pondweed a native aquatic plant?
Yes, cruciferous pondweed is native to the Netherlands and is common in ditches, ponds and other still waters. The plant is well adapted to European waters and plays an important role in the aquatic environment. Crucified pondweed helps purify the water and provides hiding places for small aquatic animals.
How should I plant Cruciferous Pondweed?
Cruciferous pondweed is planted by placing the stems directly in the water, where they will naturally take root in the muddy bottom. You can easily place the plant in pond soil in a pond basket or leave it loose in the water, where it will grow quickly. It is an easy-care plant that needs very little to become well established.
How do I maintain Crucified Pondweed?
Crucified pondweed grows quickly and can overgrow other aquatic plants. For this reason, regular maintenance is important. It is advisable to prune the plant in summer and remove excess stems to maintain balance in the pond. By keeping pondweed in check, it contributes to water clarity and helps fight algae.
Is Crucified Pondweed hardy?
Yes, cruciferous pondweed is hardy and even survives harsh winters. The plant dies off above ground in winter, but its roots remain intact. In spring, it sprouts again and recovers quickly as soon as the water temperature rises again. Thanks to its winter hardiness, cruciferous pondweed is a durable choice for ponds.
What is the planting depth of Cruciferous Pondweed?
Crucified pondweed thrives at a depth of 30 cm to 1 metre. It needs sufficient light to grow well, so clear water is an advantage. The plant forms dense vegetation that can flourish in both shallow and deeper water layers, making it suitable for both small and larger ponds.
Buy Crucified Pondweed?

We have had good experiences with oxygen plants from De Vijvermeester. Cruciferous pondweed is for sale via De Vijvermeester's webshop. Here you can find beautiful bunches of high quality.