Oxygenators add extra oxygen which is important for maintaining a healthy pond balance. These plants grow when they are fully submerged in the water.
Oxygenating plants photosynthesise underwater creating oxygen which dissolves in the water. This is not only useful for animal life but also for bacteria which help keep the water clean. Bunches of oxygenators can be dropped into the water but ideally are planted in groups of 3 or more using gravel or aquatic soil in a basket up to 100cm deep. Many oxygenators grow best in streams or rivers so planting in gravel helps them acclimatise quicker.
Many oxygenating plants have two forms of foliage; submerse (foliage below the water) and emerse (foliage above the water) and they can look very different. Oxygenating plants are sold in two forms, either as bunches with a weight which can be placed straight into the water or potted plants which can be placed on the deeper shelved areas of a pond. Potting gives the plant access to nutrients which improves growth.
Due to the seasonal nature of the plants, availability changes on a weekly basis. If what you require is not currently available, please check back soon as varieties are at their best at differing points of the year.