Marginal plants are places in the shallow water of a pond to help soften the edge of a pond or make it look for natural. Varieties which are winter hardy in New York and commonly found at Bergen Water Gardens include:
- Arrow Arum Peltandra virginica
- Arrowhead Sagittaria latifolia
- Bloody Dock Rumex sanguineus
- Cardinal Flower Lobelia cardinalis
- Cardinal Fan Salmon Lobelia Fan Salmon
- Cattail, Dwarf – Typha minima
- Cattail, Graceful –Typha laxmanni
- Cattail, Variegated – Typha latifolia variegata.
- Cattail, Zebra Typha augustifolia
- Clover, Variegated – Marsilea mutica
- Golden Club – Orontium aquaticm
- Golden Club ‘Big Red’ – Orontium aquaticum ‘Big Red’
- Houttuynia, Chameleon – Houttuynia cordata variegata
- Coreopsis , Pink –
- Iris, Japanese – Iris kaempferi
- Iris, Louisiana Black Gamecock
- Iris, Yellow – Iris pseudocorus Note: as of 2015 Yellow Iris can no longer be sold in New York State
- Lizard’s Tail – Saururus cernuus
- Lizard’s Tail. Chinese – Saururus chinesis
- Marsh Marigold – Caltha palustris
- Marsh Marigold, Double – Caltha palustris
- Monkey Flower Mimulus ringens
- Obedient Plant – Physostegia leptophylla
- Pickerel, Blue – Pontederia cordata
- Plantain, Red – Plantago major rubrifolia
- Reed, Candy Stripe – Phragmites australis ‘Candy Stripe’
- Reed, Giant Variegated – Arundo donax variegata
- Ribbon Grass, Strawberries & Cream – Phalaris arundinacea ‘Strawberries & Cream’
- Rush, Corkscrew – Juncus effusus
- Rush, Corkscrew Blue Medusa – Juncus inflexus ‘Afro’
- Rush, Flowering – Butomus umbellatus
- Rush, Horsetail Robustum – Equisetum hyemale ‘Robustum’
- Rush, Variegated – Baumea rubiginosa variegata
- Rush, White – Scirpus albescens
- Rush, Zebra – Scirpus tabernae-montani ‘Zebrinus’
- Sagittaria Crushed Ice – Sagittaria graminea ‘ Crushed Ice’
- Sedge – Carex spp.
- Sedge, Blue Variegated – Carex flacca ‘bias’
- Sedge. Black Flowering – Carex nigra
- Spearwort Miniature – Ranunculus flammula
- Sweetflag, Variegated – Acorus calamus variegatus
- Silver Thalia – Thalia dealbata
- Water Celery, Variegated – Oenanthe javanica ‘Flamingo’