Aquarium plant from tissue culture in closed cup.

This plant was discovered by aquarists in Thailand, close to the border with Burma. It is called 'Downoi' (little star) in Thailand, and it is easy to see why (5-10 cm tall and wide). Pogostemon helferi is an unusual and distinctive aquatic plant with a compact habit, curly leaves and a strikingly beautiful green colour.

With good light conditions and a substrate rich in nutrients Pogostemon helferi forms many side shoots, which develop small roots, and the plant rapidly forms an impressive carpet of foreground vegetation.

Plant Information

• Type: Stem

• Origin: Asia
  (Most commonly found in this region; cultivars may be developed in cultivation.)

• Growth Rate: Medium
  (Grows at a moderate pace compared to other aquatic plants.)

• Height: 3 - 10+ cm
  (Expected height after two months in an aquarium.)

• Light Demand: Medium
  (Requires approximately 0.5 W/L of light for optimal growth.)

• CO₂ Requirement: Medium
  (Needs 6-14 mg/L of CO₂; high demand starts at 15-25 mg/L.)