TROPICA - Hottonia palustris - In vitro

A hardy aquatic plant with decorative, cut foliage

Hottonia palustris is a slender-stemmed plant native to the temperate zones of Europe and Asia. As pretty as it is useful, it is known for its bushy form and upright growth , forming dense, airy bushes. Its delicate structure is reminiscent of species such as Myriophyllum, but it is distinguished by its alternate, finely pinnate leaves , which provide a natural look ideal for aquascaping settings inspired by European wetlands.

With a height of between 10 and 30 cm, it fits perfectly into the middle zone of the aquarium. It loves cool, well-oxygenated water and grows easily in medium light. In a well-lit area, it develops a nice density of foliage, especially if it receives a little nutrients to support its growth.

Growing conditions and tips for harmonious growth

Hottonia palustris adapts well to various types of tanks, although it prefers slightly acidic soft water, between 5 and 7 pH. Its ideal temperature is around 18 to 22°C, but it can withstand up to 25°C without any problem. However, above this, it begins to slow down. In an aquarium, it grows well with moderate lighting , and a CO2 system can give it a boost, especially to thicken the base.

The key to a beautiful, full clump is regular pruning of the tallest shoots . This stimulates growth at the base and prevents the stems from becoming bare. You can simply pinch off the ends and replant the cuttings to fill out the clump. Placed between light aquarium sand and a larger plant, it acts as a tie in the decor, while providing an ideal resting area for small fish.

A plant suitable for temperate aquariums as well as outdoor ponds

In addition to being beautiful, Hottonia palustris is very hardy . It can spend the winter outdoors in a pond, provided it is protected from severe frost. Its creeping roots sink slightly into the soil, but it also grows very well in shallow soil. If you have a cold water tank, it will be perfectly at home, as it prefers cool temperatures to grow in full health.

It also has its place in conventional aquariums, as long as its needs are respected: correct lighting, rich soil and simple maintenance. Be careful, it is a shade-sensitive plant: if it is placed too far back or under a large plant, it risks dying. Finally, to avoid suffocating the vegetation, remember to clean the filter thoroughly from time to time to keep the water clear and well-circulated.