George Theodoris
Are Haworthia Winter Growers?
In my last newsletter, I mentioned that "I usually don’t water them (Haworthia) at all during December and January, except for young seedlings." This sparked a response from a reader who pointed out, "Haworthia are winter growers." This comment highlights a common belief: that Haworthia are winter growers. For many years, I accepted this as fact. However, my experience cultivating these plants over the past two decades has revealed a more nuanced story. Are Haworthia Winter Growers? Conventional wisdom among some is that Haworthia are winter growers, but under cultivation, my plants behave differently. In my growing conditions, they grow more...
George Theodoris
Seasonality and Dormancy in Succulents
Many plants are seasonal. For example, if you are from the East Coast of the US, you are familiar with the brilliant displays of trees having their leaves turn vibrant shades of yellow, orange, and red in the fall. That color change is a signal that the trees are preparing to go dormant. This vibrant display of colors is a hallmark of deciduous forests in temperate regions and is an adaptive strategy for nutrient recycling and tree survival during the dormant season. Succulents also change with the seasons. Because different succulents evolved in different habitats, the exact seasonal response will...
George Theodoris
Exploring wide crosses in Haworthia and its relatives
My paper on experiments with creating wide hybrids between Haworthia and its relatives:
Exploring Wide Crosses in Haworthia and Its Relatives. George Theodoris, Haworthia Journal, October 2024, Volume 38, Issue 3, pp. 58-63.
George Theodoris
Long-Term Maintenance and Rejuvenation in Haworthia: Underground Stem Removal
Haworthia thrive under the correct environmental conditions: well draining pumice-rich soil, sufficient light and temperatures and correct watering. But in the long term, some individuals may become prone to dormancy syndromes that can lead to dehydration and death. Some plants may lose their plumpness and take on a more dehydrated look. Dry older leaves are often visible. In this blog, I will guide you through diagnosing and managing this problem to ensure the ongoing health and beauty of plants that have started down this path. Underground Stem formation From my observations these dormancy/dehydration problems are usually linked to the formation...
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