Oxygentor Varieties

Name Hornwort
Scientific Name Ceratophyllum Demersum
Hardiness Zone 5 to 11
Height 100-300cm (3-10’)
Submerged Depth 30-400cm (1-12’)
Notes A non-rooting, deep-water plant, with long stems covered in whorls of fine leaves, resembling an underwater juniper bush. Electrostatically filters debris from the water column, and excretes alleopathic substances that inhibit the growth of suspended algae.

Name Canadian Pondweed
Scientific Name Elodea Canadensis
Hardiness Zone 3 to 9
Height 30-300cm (1-10’)
Submerged Depth 30-300cm (1-10’)
Notes A native to Canada, with translucent, bright-green leaves forming in whorls of 3 or 4, along long, round, slender stems. A beautiful plant in decorative ponds, but can be invasive in natural waterways.

Name Dwarf Hairgrass
Scientific Name Eleocharis Acicularis
Hardiness Zone 3 to 9
Height 10-15cm (4-6″)
Submerged Depth 30-120cm (1-4’)
Notes Soft, thin, bright-green, foliage creates submerged, dense, turf-like stands resembling red fescue. A wonderful plant for softening underwater rockwork in decorative ponds.

Name Marestail
Scientific Name Hippirus Vulgaris
Hardiness Zone 4 to 9
Height 30-75cm (12-30”)
Submerged Depth 0-60cm (0-2’)
Notes Long, green stems with bushy whorls of tiny linear-oblong leaves grow upright protruding 20-30cm (8-12″) above the water surface. A favourite snack for fish, and a staple remedy of old European herbalists treating coughs, stomach ulcers, and skin inflamations.

 

Name Variegated Pennywort
Scientific Name Hydrocotyle ‘Confetti’
Hardiness Zone 7 to 9
Height 5-15cm (2-6”)
Submerged Depth 0-3cm (0-1”)
Notes Forms dense mats of creeping, variegated foliage on veined purple stems. Scalloped, jade green leaves have creamy margins. Good choice for ‘ground’ cover around the base of taller marginal plantings.

Name Water Primrose
Scientific Name Ludwigia Repens
Hardiness Zone 5 to 9
Height 10-30cm (4-12”)
Submerged Depth 0-60cm (0-2’)
Notes A mat-forming, amphibious herb with creeping ruddy-hued stems up to 30cm (12”) long. Top sides of the spade-shaped leaves are typically olive-green, whereas the undersides are reddish-brown to deep red. Colours become more vibrant in full light.



 
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