Clematis Trials at the Chicago Botanic Gardencomments (2) May 14th, 2012 in blogs
Richard Hawke is plant evaluation manager at the Chicago Botanic Garden, where he conducts long-term trials on dozens of ornamental plants. For the past 22 years, he has evaluated more than 200 clematis varieties, then tabulated the results of those available today for purchase by gardeners.
You'll find Richard's top picks and why he likes them in "Big Blooming Clematis" in the July/August 2012 issue of Fine Gardening (#146). We couldn't print the full results of his study in the magazine, but we can offer many of them here as a download.
Clematis trial results (Excel file)
Clematis trial results (pdf file)
See clematis varieties in Fine Gardening's Plant Guide
|Clematis 'Princess Diana'||Clematis 'Viola'|
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