Plant care checked against published sources Plant profiles, care guides and free tools Pictures are AI illustrations
Home/Plants/Aquatic plants

Aquatic plants, underwater and afloat.

These are plants that live in the water - the rooted and attached greenery that builds an aquascape, and the floaters that shade a tank or pond. Here are 23 profiles sorted by how they grow, with the light, water and difficulty of each. Most are beginner-friendly; a few need strong light and CO2, and a few are invasive - all flagged.

Aquatic Plants
Never release aquatic plants into the wild. Several plants here (water hyacinth, water lettuce, Amazon frogbit, dwarf hygro, duckweed) are serious invasive weeds - some are banned in parts of the US. Check your local rules, and always dispose of trimmings sealed and dry in the household bin, never in a pond, ditch or waterway.

Aquascape & aquarium plants Rooted or attached to hardscape - the plants that build an underwater garden.

Anubias Beginner

Anubias

Anubias is a slow, tough, dark-green rosette that grows tied to wood or rock…
Java Fern Beginner

Java Fern

Java fern is a hardy aquarium epiphyte: textured strappy green fronds on a…
Bucephalandra Intermediate

Bucephalandra

Bucephalandra is a slow rhizome epiphyte, popular with aquascaping collectors…
Java Moss Beginner

Java Moss

Java moss is a tangle of fine green strands that will attach to, or simply…
Amazon Sword Intermediate

Amazon Sword

The Amazon sword is the classic rooted centrepiece plant - a big rosette of…
Cryptocoryne Wendtii Beginner

Cryptocoryne Wendtii

Cryptocoryne wendtii is the easy 'crypt' - a low rooted rosette in green…
Vallisneria Beginner

Vallisneria

Vallisneria is the classic underwater 'jungle grass' - long ribbon leaves that…
Rotala Rotundifolia Intermediate

Rotala Rotundifolia

Rotala rotundifolia is a fast, bushy background stem plant that stays green in…
Water Wisteria Beginner

Water Wisteria

Water wisteria is a fast, forgiving stem plant with lacy, fern-like leaves that…
Dwarf Hairgrass Advanced

Dwarf Hairgrass

Dwarf hairgrass is the go-to carpeting plant - fine green blades that, given…
Dwarf Hygro Intermediate

Dwarf Hygro

Dwarf hygro is one of the easiest, fastest stem plants there is - which is…
Hornwort Beginner

Hornwort

Hornwort is one of the fastest, toughest plants in the hobby - a rootless stem…
Anacharis Beginner

Anacharis

Anacharis is the classic beginner and goldfish plant - a fast, leafy stem plant…
Cabomba Intermediate

Cabomba

Cabomba is the feathery fan plant - opposite pairs of finely divided…
Ludwigia Repens Beginner

Ludwigia Repens

Ludwigia repens is the easiest red stem plant in the hobby - coppery-red leaves…
Water Sprite Beginner

Water Sprite

Water sprite is a true aquatic fern that gives you a choice: plant it for a…
Dwarf Sagittaria Beginner

Dwarf Sagittaria

Dwarf sagittaria is a grassy rosette plant that spreads by runners and can…

Looks like a plant - but isn't

Three of the most popular "aquarium plants" are not plants at all. We keep them out of the catalog above because it would not be honest to call them plants - here is what they actually are.

  • Marimo "moss balls" - not a moss and not a plant, but a rare form of green algae (Aegagropila linnaei) that grows into a velvety sphere. You care for it like a plant, but botanically it belongs to the algae.
  • Seaweed & kelp - all algae too, in their own kingdom, not the plant kingdom. What looks like leaves, stems and roots are lookalike structures, not the real thing.
  • Coral - not a plant or an algae, but an animal - a colony of tiny relatives of jellyfish and anemones. The "flowers" are living polyps. If you keep a reef tank, corals are livestock with animal husbandry needs, not plant care - a completely separate hobby.
New to growing things in water?

Start with the beginner-proof trio - anubias, java fern and java moss - which grow tied to wood or rock in low light with no CO2. For dry land, the fern catalog shares the same shade-and-moisture philosophy.

For a planted aquarium

Links go to Amazon or a partner store (such as Adagio Teas) and may earn us a commission at no extra cost to you. As an Amazon Associate we earn from qualifying purchases. We link gear types, not sponsors' picks: you choose the exact product.

Join and get our free plant toolkit.

Subscribe and put our printable watering calendar and care log to work today - then one plant or problem, explained in plain words, every week. Unsubscribe whenever; we won't chase you.