Tom Karwin, on gardening
Pointers for perennial plant propagation
Rainy days are for planning. Stem cuttings let you multiply the perennials you already love — cheaply, in small pots, with a few simple tools.
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Feb 26, 2026
Hummingbirds in flight
Anna’s and Allen’s hummingbirds turn a nectar garden into a show. Plant tubular flowers, then use the wait until May–June to line up your stem cuttings.
Mar 5, 2026
Working on garden renovation
Around the equinox, dormant beds are easier to read. Clear what no longer earns its space, mulch, then fill gaps with plants you propagate yourself.
Mar 19, 2026
Highlighting greenhouse gardening
A small greenhouse is not a second garden. It is a climate you control so cuttings, seed, and tender plants do not have to wait on the weather.
Aug 13, 2026
Gardening with geophytes
We say “bulbs,” but the underground pantry may be a true bulb, corm, tuber, or rhizome. Late summer is when you plan the spring show.
Jul 23, 2026
Designing with irises
Bearded irises want sun and a summer bake on the rhizome. Divide when bloom is over and the clump looks like a bird’s nest of old fans.
Jul 30, 2026
Designing with native plants
California natives want a winter start. Plant with the rains, mulch, and let Calscape tell you what actually grows in your zip code.
On Gardening columns for home growers. Independent notes on these topics — not affiliated with any newspaper. Plants vary by climate.