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Update

12/04/2015

Borzicactus samaipatanus

Names and Synonyms of the genus Borzicactus

03/25/2015

Hamatocactus hamatacanthus

Names and Synonyms of the genus Hamatacanthus

03/24/2015

Grusonia emoryi
Grusonia invicta
Grusonia reflexispina

Names and Synonyms of the genus Grusonia


 
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Welcome

Content

This page is dedicated to the plants of the cactus family, Cactaceae.
With lots of pictures, locale information, authors, synonyms, and generic care tips. My goal is to build a unsable online cactus encyclopedia. Please apologize that this cactus encyclopedia cannot be complete because of the huge number of genera. I use the taxonomy of Curt Backeberg based on the book "Kakteen von A bis Z" by Walther Haage (1981).


Thanks to

My thanks goes to the famous cactus nursery Kakteen-Haage in Erfurt, which allowed me to use plant descriptions from the book "Kakteen von A bis Z" by Walther Haage and images from their plants inventory on this homepage. Furthermore, I would like to thank the Botanical Garden of the University of Heidelberg, which that allowed the use of pictures from the collection of cacti by Werner Rauh. Thanks to all the cactus friends who helped me with their words and pictures. My special thanks to Immanuel Voigt and Edward Bartlett for correcting the English translation.

 

Published

The Tucson Cactus and Succulent Society has recently published the TCSS Field Guide to Cacti & Other Succulents of Arizona.
T
he TCSS Field Guide to Cactus & other Succulents of Arizona is the definitive source for plant identification in habitat. A much needed update of the current taxonomy, distribution and status of native Arizona cactus and succulents. All documentation and photography was provided by TCSS members who have traveled all over the state to capture and document these wonderful plants.
302 pages, 430 color pictures, 130 taxa covered (all the cacti in Arizona), 130 maps, laminated cover, stitched spine. Forward by David Yetman, illustrations by Margaret Pope.

For all Cactus enthusiasts inside of Europe is this book
at Kakteen-Haage now available.
Click here to get a overview for that publication.

 

At one glance

The most beautiful pictures of the season 2012 at one glance in a slideshow now available.
Click to enjoy the slideshow. Have many fun at viewing.

 

 

Worth seeing

Images from collections, botanical gardens, cactus nurseries and national parks.
Clickable picture links, can be found here.

 

Viewed

Have a look at the highly respected Tucson Cactus and Succulent Society and their monthly Newsletter.
Very interesting is the Cactus Rescue Crew. They harvest cacti and other native plants that otherwise would be destroyed during the development of the Arizona real estate. The saved plants are offered at Cactus Rescue Sale, where everybody is welcome!

 

Current

The translation of the English version is not finished yet. Some parts are available in English. The translation goes on.
The work on the Encyclopedia is initially completed but will be continally corrected and updated.
I wish all visitors an informative and pleasant stay and enjoy your visit!

 

 

Care in September

General

Prepare winter quarters for the inclusion of the plants; clear and clean shelves, carry on with repair work.

Light/Ventilation

The plants are accustomed to the full light of summer, with the exception of a few genera, e.g. Epiphyllum, Schlumbergera, Rhipsalidopsis, give them full light. Shading is not necessary.
Air a lot at day and night to increase the resistance of the plants.

Temperature

The lower temperatures are one of the reasons that the cactus nearly abandon their growth, therefore less watering.
Keep Schlumbergera by mid-month to 4 weeks almost dry also cool and light.

Water/Nutrients

Just water small amounts by even longer intervals (14 days). The intervals are conditional on the weather (observe temperature).
Spraying and misting especially on warm days is still possible.
Give Schlumbergera only small amounts of water, the limbs may not wither.
No more fertilizing, transplant only in necessary cases.
Outdoor plants should get a rain cover in any case.

Reproduction

Cuttings and grafting remain exceptions.

Pest control

Perform a thoroughly pest control from early to mid-month, last date for use of liquid preparations.

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