Cryptocoryne × purpurea

Aquarium suitability: yes
Usage: Background, Midground, Specimen plant
Difficulty: medium
Growth: slow
See also: Cryptocoryne cordata var. cordata , Cryptocoryne cordata var. siamensis , Cryptocoryne griffithii

Availability [?]: 
  • rarely or not available commercially
  • rarely or not available from other aquarists

Misapplied names: 
  • Cryptocoryne griffithii

Habit, plant type:

  • rosette
Botanical name [?]: Cryptocóryne × purpúrea Ridl.

Major group (unranked): Seed plants: Flowering plants (Angiosperms)
Order: Alismatales
Family: Araceae
Genus: Cryptocoryne


This water trumpet was first found in Kota Tingii in western Malaysia, and in 1902 the director of the Botanical Garden Singapore, H.N. Ridley, described it as Cryptocoryne purpurea. In the 1960s, de Wit named it as most common aquarium plant in Europe and America. Today it has probably disappeared from aquarium cultivation, and it is only still cultivated by a few specialised hobbyists, mostly in the emersed form.

Typical C. x purpurea from the Malayan peninsula was identified in 1982 by Niels Jacobsen as a natural hybrid of C. cordata var. cordata and C. griffithii. The most well-known population of this crypt is the vast marshland of Tasek Bera in Pahang.

- To be continued -

References and further reading:
  1. Bastmeijer, Jan: The Crypts Pages, Cryptocoryne ×purpurea Ridley nothovar. purpurea (updated January 2003) (, accessed 29 May.2013)
  2. Bastmeijer, Jan: The Crypts Pages, Cryptocoryne ×purpurea Rideley nothovar. borneoensis N.Jacobsen, Bastmeijer & Y. Sasaki (updated January 2003) (, accessed 29 May 2013)
  3. Peter Babics (2013):, Cryptocoryne x purpurea nothovarensis (, accessed 29 May 2013)
Light low to medium 
Temperature tolerance 17 to 30 °C
Optimum temperature 23 to 28 °C
Carbonate hardness 2 to 16 °dKH
pH value 5 to 6 
Carbon dioxide (CO2) 10 to 40 mg/l
Nitrate (NO3-) 10 to 50 mg/l
Phosphate (PO43-) 0.1 to 3 mg/l
Potassium (K+) 5 to 30 mg/l
Iron (Fe) 0.01 to 0.5 mg/l

Growth: slow

Propagation: Runners, Rhizomteilung, Splitting, cutting off daughter plants

Can grow emersed?: yes

Suited for outdoor cultivation / ponds: unknown

Winter hardiness: not hardy in Germany

There is no detailled information for cultivating this plant yet.
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Wasserpflanzen sind ein fester Bestandteil der meisten Aquarien. Beim Aquascaping, dem Naturaquarium, Biotop-Aquarium oder dem Gesellschaftsaquarium sind Wasserpflanzen nicht nur für die Wasserqualität entscheidend, sondern sorgen auch stets für eine optische Aufwertung des Aquariums.