plant breeding

Roy Klehm, 2026

An Evening with Roy

On a recent speaking engagement in Illinois, I was very fortunate to reconnect with one of my early and most important horticultural mentors, plantsman Roy Klehm. Roy, 83, came from a well-known nursery family, and for most of his life, operated Klehm Nursery, Song Sparrow Farms, and later Beaver Creek Nursery in Illinois and Wisconsin.

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Mahonia hybrid seedling

Re-imagining Mahonia

Mahonias are highly prized by gardeners as winter-flowering evergreen shrubs, but the majority of mahonias that most people know are the Mahonia x media (M. japonica x lomarifolia) selections, that originated in the UK. With age, these can reach 10-12′ tall, and are highly prized for their fragrant winter flowers, and ability to feed pollinators

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Grasping Wags – a New Reveal

We’ve been very pleased with a series of new windmill palm hybrids in the garden as we approach another winter stress test. Trachycarpus x forceps is our assigned name for crosses between Trachycarpus fortunei and Trachycarpus princeps. While most Trachycarpus fortunei is winter hardy here in Zone 7b, the lovely Chinese/Tibetan border endemic, Trachycarpus princeps,

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Cotton-tipped Century Plant

I remember looking in astonishment at the first published photos of the newly described North American (Northern Mexico) native century plant, Agave albopilosa, with disbelief. Could this really be real, and if so, how did it escape being discovered and published until 2007. It turned out not to be an April Fools photoshop joke, but

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