Water sword lily: appearance, location conditions & care instructions

Water sword lily: appearance, location conditions & care instructions


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Are you looking for a pond plant that not only looks good, but is also easy to care for? Then e.g. the water sword lily is ideally suited. It hardly does any work and is a real eye-catcher.

A garden pond is a magical attraction in the garden. Here you can relax, escape everyday stress and recharge your batteries. The garden pond with a selection of different aquatic plants is a special eye-catcher. In addition to the water lily, the exotic-looking water sword lily, which is also known as the water iris, is very popular here. It is one of the noble pond plants, which is also highly valued as a cleaning plant. It is also one of the easy-care plants, but there are still a few things to consider.

Appearance of the water sword lily

The water sword lily is a decorative aquatic plant with bright yellow flowers. It has sword-shaped leaves and offers the small aquatic creatures a protected place thanks to their rich roots. The root system also helps to balance nutrients in the pond water.

The water sword lily is often used to fill free space around the pond quickly and with little effort.

  • Family: Iris family
  • Botanical name: Iris pseudacorus
  • Growth habit: Perennial herbaceous plant

Although the water sword lily occurs frequently in nature and has not been endangered so far, it was nevertheless protected according to the Federal Species Protection Ordinance at gesetze-im-internet.de. It is therefore under nature protection and must not simply be dug up on water.

Optimal site conditions

In order for the water sword lily to develop well, it is important to create optimal site conditions.

The special thing about the popular aquatic plant is that it can be planted both in the swamp (favorite place) and on the mainland. Here, however, it only reaches a maximum height of around 60 cm, during which it can easily grow to a height of two meters on damp ground.

When planting in water, make sure that a depth of 30 cm is not exceeded. In this case, the plant cannot develop properly. Otherwise, the aquatic plant needs a place in full sun so that the flowers can develop in their full glory.

" Tip: On wasserflora.de it is recommended to convert the water sword lily into large water baskets, otherwise it will spread too quickly.

Care measures

ProliferationAs mentioned above, the water sword lily reproduces on its own. The flower capsules burst and the seeds they contain fall into the water. So you really don't need to worry about propagation.However, if you want to place the iris in another place, you can also multiply it using the root rhizomes. Early spring is best suited for this. When inserting, however, you should keep a distance of at least 50 cm so that the flowers can develop optimally.As shown in the overview of paradisi.de, caution is required for some garden and pond plants, including the water sword lily. The rhizomes are full of toxins. In humans, the poison can cause skin irritation, so you should definitely wear gardening gloves when transplanting, etc. pruning

The plant grows more from year to year. Therefore it is unavoidable to use the scissors at some point. After three years at the latest, it is advisable to thin the plant slightly from the outside.

In autumn, only the dried and withered parts of the plant have to be removed.

Diseases and pestsThe water sword lily is a robust and resistant pond plant that is not necessarily susceptible to diseases or pests.However, there could be problems if the plant does not get enough moisture at its location. Then the plant grows very slowly or not at all. In addition, the flower could also fail to appear. So be sure to keep it moist. wintering

The water sword lily is a winter-proof plant. Avoid covering them with mulch or similar. This would only harm the plant.