Your cart is empty.

Cryptocoryne cordata var. siamensis 'Rosanervig'

Siamese water trumpet

Cryptocoryne cordata var. siamensis 'Rosanervig'

Siamese water trumpet

  • Lanceolate leaf shape
  • Olive green with darker veins
  • Suitable for the midground
  • Low lighting demand
  • Slow growth rate
Out of stock
Do you want us to send you an e-mail when this item is available again?
Yes, please drop me a line
Express delivery possible
I want to order to 

Please choose a variation

Item question

We’re here for you!

Please enter your question and e-mail and we’ll contact you as soon as possible. It usually takes us up to 24 hours during business days to respond.

Thank you for your question!

Thank you, we’ll get in touch!

Close window

You already sent us a question.

Please wait a few minutes


The Siamese water trumpet is a variety of Cryptocoryne cordata from southern Thailand. It occurs predominantly in calcareous, shaded flowing waters, in contrast to typical Cryptocoryne cordata which is found in rather acid, soft waters of the Malayan peninsula. There are different forms of the variety siamensis, for example "Cryptocoryne blassii". They are long known as undemanding aquarium plants, however they have become rare in the aquarium hobby.

The siamensis form offered by us (Dennerle short name C30) is propagated by meristem culture and has narrow, lanceolate leaves with an attractive pattern of dark veins and a reddish underside. It is slow growing, can be kept in hard to soft water and has a low light demand. For a long time the plant does not exceed a height of 20 cm and is suited for the midground. However, after a long period of growth it may get taller, especially with low light and ample nutrient supply. With time, it forms a lush, dense stand by underground runners.

When Cryptocoryne cordata var. siamensis is grown in shallow water or emersed, one can expect its attractive inflorescences with yellow spathe.

General information

Please choose a variant to see more information.

Item no.
Shipping weight

Customers ask customers

There are no questions yet. Be the first to ask a question about this product!

Customer reviews

This item has not been rated
Please sign in if you want to write a review. Sign in
5 Stars(0)
4 Stars(0)
3 Stars(0)
2 Stars(0)
1 Star(0)