Tom Karwin
- Indexed articles, last 90 days
- 12
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- Sep 24, 2026
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- Jul 9, 2026
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Tom Karwin, On Gardening | Propagating a mystery plant (opens the original)
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I have a long-standing interest in the Agave, a succulent plant native to Mexico and a few southwestern U.S. states. This genus includes 270 or more species, a small number of natural hybrids and potentially over 1,000 nursery hybrids. I have been collecting Agave species to appreciate, compare and contrast the genus’ leaves and spines that range in shape and hue, its presence or absence of lateral spines and its nearly universal terminal spines. The Agave species also vary in mature size, rangi
Tom Karwin, On Gardening | Gardening with bromeliads (opens the original)
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I often focus on gardening with plants that thrive in the world’s Mediterranean climates, including California, because they do well in Monterey Bay’s compatible climate. Within that category, California natives are natural choices for Monterey Bay gardeners and for local birds and other wildlife. Still, when growing plants from beyond the Mediterranean region, gardeners can appreciate their exotic characteristics and meet their cultural needs. Bromeliads are among the exotic plants that gardene
Tom Karwin, On Gardening | Browsing the diversity of bromeliads (opens the original)
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I often seek interesting plants from Mediterranean regions for my garden. While buying new plants for my garden, I find varieties in the bromeliad family. Some bromeliads are tropical plants native to various regions of South America and Central America. I have two Chilean native bromeliads in my Chilean bed, which is focused on one of the five Mediterranean climate regions. Chile is a long country, in which only the central part has a Mediterranean climate. The northern part is tropical. The Ch
Tom Karwin, On Gardening | Seasonal garden projects (opens the original)
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Gardens need different attention each season. As we near the end of summer (Sept. 22), this is the right time for gardeners to plan for fall. Let’s review the seasonal tasks in the garden. I walked my garden and highlighted plants currently in bloom. I wanted to exemplify each of the five Mediterranean climate regions, but flowers are already fading and, by chance, some were not well-positioned for snapshots. Spring is a better season for photography. We can categorize perennial plants as having
Tom Karwin, On Gardening | Plunging into pond gardening (opens the original)
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Today’s column follows our recent comments about revising our small garden pond. To review those comments, browse to santacruzsentinel.com and search for “pond gardening.” We’re now pursuing our pond revision project, with ideas for readers developing existing or new garden ponds, selecting pond plants and choosing fish. We have drawn the accompanying images from Wikimedia Commons and artificial intelligence sources, featuring water lilies, lotuses and other water plants; one fish species suitab
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