Content


 

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


 
Search

 

Visitors since 2004


 


Free counters!

 


 

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 August

General

During vacation ask after cacti collections in Botanical Gardens or public collections and visit them. Get in touch with other cactus friends contact and possibly visit them.

Light/Ventilation

The cacti are now adapted to full sunlight, shade can be omitted. Provide Schlumbergera, Hatiora, Epiphyllum and Rhipsalidopsis an halfshady stand (best keep them outdoors).
A lot of air! Keep cold frames and glass boxes keep open at night so that the plants can get the dew.

Temperature

Expose cacti to the specifically the temperature differences between day and night (hardening).
Plants that have stained a violet color by intense sunlight, set in the shade.

Water/Nutrients

Reduce watering a bit, prepare the plants for the rest.
On hot days, often mist or spray, protect cacti which are placed outside against too much moisture.
Hardly any fertilizing or transplanting, cacti abandon their growth and store energy reserve.

Reproduction

Cuttings, sowings and transplanting still possible, but not so favourable.

Pest control

Watch in the hot season, especially on spider mites.
Preventive control is therefore necessary. Because of faster resistance of pests to pesticides change them frequently.

www.Kakteensammlung-Holzheu.de
optimum viewing with Mozilla Firefox 3.5 or higher and 1024x768 pixel