Trichocereus chilensis / Echinopsis chiloensis

Trichocereus chilensis / Echinopsis chiloensis

Current name: Echinopsis chiloensis H.Friedrich & G.D.

Synonyms (among others): Trichocereus chilensis, Trichocereus chiloensis, Echinopsis chilensis, Echinopsis chiloensis, Cactus chiloensis, cereus chiloensis, Trichocereus skottsbergii, Trichocereus nigripilus, Echinopsis skottsbergii, Echinopsis nigripilus, Trichocereus spinibarbis.

It´s debatable whether or not Trichocereus litoralis and Trichocereus coquimbanus are synonymous with Trichocereus chilensis, but there is a clear connection and intermediates exist. 

Some people consider Eulychnia eburnea to be synonymous with Trichocereus chilensis / Echinopsis chiloensis, but I disagree vehemently. The plants look kinda similar, but the flowers of them are very different and clearly belong to the genus Eulychnia.

Trichocereus chilensis or Trichocereus chiloensis is the predominant Trichocereus in Chile. The Name “chiloensis” is the taxonomically correct one, but there´s a very high chance this was nothing but a typo as the name was most likely supposed to mean”Chilean Trichocereus” and not “Trichocereus from Chiloe”. T. chilensis doesn not grow anywhere near the island of Chiloe. This makes the confusion around the name even more ridiculous. I understand that Taxonomy has to prefer the earliest name recorded, but in this case, the name Trichocereus chiloensis should be ignored because it is the taxonomic equivalent of a typo.

Trichocereus chilensis grows from the Provence Talca in the south of Chile down to the Elqui Valley in the Provence Coquimbo in the north. There are various varieties and the maximum size of the plants varies greatly. Trichocereus chilensis is one of the most typical cacti in Chile, grows like a tree and can get up to 6-7 meters tall. It grows as strong columns that reach a maximum diameter of 15 centimeters. The areoles are white/beige and up to 2 centimeters long. It has 10-12 radial spines that are up to 2 centimeters large and 2-4 middle spines. The middle spines are usually between 5-10 centimeters long-

Flower: The flower of Trichocereus chilensis is a little smaller than the ones on other Trichocereus species. It is between 8-14 centimeters long. The tube has very little hair on it and is 4-6 centimeters long, white petals (up to 5 centimeters long). Trichocereus chilensis is a diurnal species, but the flowers tend to stay open for a very long time, sometimes even up late into the night so you might get the idea it is actually night flowering. There are many varieties or intermediates of Trichocereus chilensis, which grow all around the habitats and in the area where different types grow in the neighborhood of each other.

Varieties or regional forms:

Trichocereus chilensis var. eburneus

Trichocereus chilensis pantholipes

Trichocereus chilensis borealis

Trichocereus chilensis var. australis

Trichocereus chilensis var. conjungens

Trichocereus chilensis var. skottsbergii,

Cultivation: Trichocereus chilensis is a very tough cactus, just like many other cacti from Bolivian deserts . They can take extreme heat and are very easy to grow. But they don’t like too much water, so you should never give too much water at once. They should only be watered in summer and require dry soil medium during the winter. Besides, they need a temperature change during the water in order to produce flowers. That means that you should overwinter Trichocereus chilensis in a bright and well-ventilated room between October and April until there are no more night frosts. Trichocereus chilensis is able to tolerate slight night frosts but the temperatures should not drop below -9° Celsius or you might lose the cactus. Apart from that, Trichocereus chilensis is really easy and can thrive on very poor soil medium. I can recommend purely mineral soil mixes for them because they tend to rot when there is too much humus in the soil. A cactus that is kept in a mineral substrate can stay wet for much longer without any damage to the roots that one that is grown in a highly humus substrate.

Growing Trichocereus chilensis from Seed: Trichocereus chilensis is similarly easy from seed as any other Trichocereus. The seeds stay long for 5-10 years, though it´s best to use seeds that are not older than one year. The seeds need light to germinate and you usually sprinkle them on top of the soil and put the pot/sowing container in a room with a temperature between 25-30° Celsius for 2-6 weeks. If you still have no seedlings after 2-6 weeks, chances are that the seeds are not viable. There are not many suppliers for seed of Trichocereus chilensis. 

Right now I have a terrific strain of Trichocereus chilensis ssp. litoralis in my shop. Check it out here. 

trichocereus chilensis huntington botanical gardenTrichocereus Chilensis – Huntington Botanical Garden by Richard Hipp

Jimmy Baikovicius -Echinopsis_chiloensis_(2)Jimmy Baikovicius -Echinopsis_chiloensis

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Echinopsis chilensis by penarc_8

Echinopsis chilensis by penarc

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by jorge barrios CactusChileby jorge barrios Cactus Chile

Stan Shebs Trichocereus_chiloensis_3

by Stan ShebsStan Shebs Trichocereus_chiloensis_2

Stan Shebs Trichocereus_chiloensis

Stan shebs Trichocereus_chiloensis_1Stan shebs Trichocereus_chiloensis

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jason hollinger Quisco_(3436435558)jason hollinger Quisco

pato novia Leucostele_chiloensis_(littoralis)

pato novia Leucostele_chiloensis_(littoralis)

Raffi Kojian Gardenology.org-IMG_2370_hunt0903Raffi Kojian Gardenology.org

Jason Hollinger Echiopsis_chiloensis

Jason Hollinger Echiopsis_chiloensis

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Pato novoa Echinopsis_skottsbergii_—_Pato_Novoa_001Pato novoa Echinopsis variety skottsbergii_—_Pato_Novoa

milodon3 Echinopsis_Chiloensis

milodon3 Echinopsis_Chiloensis

jason hollinger Echinopsis_chiloensis

jason hollinger Echinopsis_chiloensisyazz Echinopsis_chiloensis_Yazzyazz Echinopsis_chiloensis_Yazz

penarc Echinopsis_chiloensis_Collaby penarc Echinopsis_chiloensis_Colla

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daderot Echinopsis_chiloensis_-_Palmengarten_Frankfurt

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daderot -Echinopsis_chiloensis_-_Botanical_Garden_in_Kaisaniemi,_Helsinki

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dick culbert Echinopsis_chiloensis_(8408954191)

dick culbert Echinopsis_chiloensis_

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