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Cryptocoryne cordata var. siamensis

Siamese water trumpet

Cryptocoryne cordata var. siamensis

Siamese water trumpet

  • Lanceolate leaf shape
  • Olive green with darker veins
  • Suitable for the midground
  • Low lighting demand
  • Slow growth rate
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Description

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.

Cryptocoryne cordata var. blassii originates from swamplands in southern Thailand, Malaysia and on the island of Borneo. It is the most popular variety of C. cordata and very easy in cultivation.

This Cryptocoryne is an undemanding slow grower. It needs low to medium light (0.25-0.5 watts per litre), as its natural habitat is in shaded rivers. It does not require additional CO2, however, CO2 fertilisation may have a positive effect on growth. It can be kept in hard water very well. In order to reach its full height it needs a substrate rich in nutrients.

The emersed cultivation of C. cordata var. blassii is easy. It only needs low light and should be sprayed with water from time to time in order to increase the humidity. It also needs a nutrient-rich substrate when cultivated above the waterline. (read more)

Synonyms Cryptocoryne blassii de Wit, Cryptocoryne evae var. evae Rataj, Cryptocoryne evae var. recordata Rataj, Cryptocoryne siamensis Gagnep., Cryptocoryne siamensis Gagnep. var. ewansii Rataj
Misapplied names Cryptocoryne × purpurea
Trader names Cryptocoryne cordata var. blassii
Complete botanical name Cryptocóryne cordáta Griffith var. siaménsis (Gagnepain) N. Jacobsen & D. Sookchaloem
Family Araceae
Genus Cryptocoryne
Difficulty easy
Usage Background, Midground, Specimen plant
Growth slow
pH value 4 - 7
Temperature tolerance 17 - 30°C
Carbonate hardness 2 - 12°dKH
General hardness 0 - 30°dGH
Propagation Runners, Rhizomteilung, Splitting, cutting off daughter plants
Can grow emersed? yes
Source Flowgrow
Synonyms
Cryptocoryne blassii de Wit, Cryptocoryne evae var. evae Rataj, Cryptocoryne evae var. recordata Rataj, Cryptocoryne siamensis Gagnep., Cryptocoryne siamensis Gagnep. var. ewansii Rataj
Misapplied names
Cryptocoryne × purpurea
Trader names
Cryptocoryne cordata var. blassii
Complete botanical name
Cryptocóryne cordáta Griffith var. siaménsis (Gagnepain) N. Jacobsen & D. Sookchaloem
Family
Araceae
Genus
Cryptocoryne
Difficulty
easy
Usage
Background, Midground, Specimen plant
Growth
slow
pH value
4 - 7
Temperature tolerance
17 - 30°C
Carbonate hardness
2 - 12°dKH
General hardness
0 - 30°dGH
Propagation
Runners, Rhizomteilung, Splitting, cutting off daughter plants
Can grow emersed?
yes
Source
Flowgrow

How many plants do I need?

How big is the area to be planted? (cm)

General information

Item no.
135.0321.00
EAN 4001615300185
Weight 0,00 kg
Shipping weight 0,10 kg

Customer reviews

This item has been rated 5 out of 5 stars
2 Reviews
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1 Star(0)
Matthijs S.
Great plant
8th January 2018
Cryptocoryne cordata var. siamensis - Plant-It!
Cryptocoryne cordata var. siamensis - Plant-It!

This arrived quickly and the plants were in good condition. You get a number of plantlets in the invitro pot and I am excited to see how they will develop!

Olaf W.
Schöne Cryptocoryne
5th September 2018
Cryptocoryne cordata var. siamensis - in Vitro XL
Cryptocoryne cordata var. siamensis - in Vitro XL

Nachdem sie in ADA Aqua Soil Malaya sich fast aufgelöst haben und ich das Aquarium deshalb wie gewohnt auf Dennerle Deponitmix umgestellt habe, sind sie zu ansehnlichen Pflanzen... (read more)