Plants / Stem Plants
Hygrophila polysperma
Stem Plants

Hygrophila polysperma

Hygrophila polysperma

Almost impossible to kill; great for beginners.

Check your local laws. US: Federal Noxious Weed (USDA APHIS, 7 CFR 360); also a state noxious weed in Alabama, California, Florida, Indiana, Massachusetts, Minnesota, North Carolina, New Hampshire, Oklahoma, South Carolina and Vermont (per APHIS 2015, citing GRIN). Florida: Class II Prohibited Aquatic Plant (F.A.C. 5B-64.011): may not be imported or collected from the wild; only licensed nurseries may culture it. EPPO: On the EPPO list of invasive alien plants (recommendation, not an EU ban). Never throw it into ponds, rivers or drains.

Needs

Care levelEasy
LightLow
CO₂Not needed
GrowthFast
HeightUp to 40 cm
Temperature22–28 °C
WhereBack of the tank
Feeds throughLeaves, from the water
FamilyAcanthaceae
Native toSouth and South-East Asia: Afghanistan, Pakistan, India, Himalaya (Nepal, Assam), Bangladesh, Sri Lanka, Myanmar, Thailand, Vietnam, Peninsular Malaysia, southern China, Taiwan
Facts checked against sources on 16 Oct 2026. See sources

How to keep it

  • Any light
  • Trim often
  • Letting it overgrow

Sources

14 facts checked with sources

Good with

Animals that leave it alone