Artisan's Blog

George Theodoris

Observations of leaf traits of Haworthia splendens and H. splendens hybrids

Observations of leaf traits of Haworthia splendens and H. splendens hybrids

In this article I will discuss my observations of leaf traits in Haworthia splendens and progress on H. splendens hybrids from my breeding program.

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George Theodoris

Plant enemy part 2: Aloe Mites - Satanic hydra

Plant enemy part 2: Aloe Mites - Satanic hydra

Early in 2022 I was shopping for trees for my backyard at a local garden store. While perusing the succulent section I saw an aloe plant with a gnarly flower gall. These galls, sometimes called Aloe cancer are caused by Aceria aloinis, more commonly known as aloe mite. These mites belong to the Eriophyid family of mites. I've seen mealie bugs, scale, spider mites but I have never seen an aloe mite. Since they are now capable of infecting Haworthia plants, which I grow, I felt I should see what they look like for myself. I returned to the garden center the following...

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George Theodoris

Plant Tissue Culture - FAQ

Plant Tissue Culture - FAQ

We are happy to offer some of our favorite plants we propagated using tissue culture. I wanted to provide some background to answer questions about the process people might have: What is tissue culture? A method to propagate plants.  How did you learn Plant Tissue Culture? I have a background in genetics and plant biology and previous work experience with plant TC. I was lucky to have as mentors two people who are pioneers in the field of plant TC.   How does it work? Plant tissue containing merisitems (for more information about meristems see my previous blog) is sterilized to kill bacteria and fungi....

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George Theodoris

Haworthia as houseplants

Haworthia as houseplants

This column is for the novice growers interested in dipping their toes in the deep fascinating ocean that is Haworthia. By haworthia, I am referring to the "window" haworthia.  For many years the term Haworthia was associated with common hard leaved haworthia, like H. attenuata "Zebra plant". Those plants are now considered to be their own genus "Haworthiopsis," and are no longer considered haworthia (for more, see my previous blog "What is and what isn't a Haworthia"). The "window" haworthia are slower and more challenging than their Haworthiopsis cousins.  "Are Haworthia difficult to grow?" I get asked this question a lot. The answer I...

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