The Essence of Rosemary: Rosemary Hall of Fame
(Page 2 of 2)
December/January 2009
By Barbara Pleasant
Best for a Christmas Tree
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When horticulturalists at the University of Illinois screened 16 rosemary cultivars to see which performed best when sheared into potted Christmas trees, some familiar names emerged. ‘Taylor’s Blue’, ‘Herb Cottage’, ‘Joyce DeBaggio’ and ‘Shady Acres’ were among the best performers when grown from cuttings rooted in spring, and sheared monthly from August to October.
Most Cold Hardy
Many gardeners in Zone 6 have good luck with gray-green ‘Arp’, which Francesco DeBaggio at DeBaggio Herbs in Chantilly, Virginia, rates as hardy to negative 10 degrees. More compact, green-leafed ‘Hill Hardy’ (sometimes known as ‘Madalene Hill’) and white-flowered ‘Alba’ often survive to 0 degrees, especially in urban environments where there is plenty of heat-retaining concrete around. Keep in mind that trailing varieties are generally less cold-tolerant than upright varieties, and should not be trusted to survive winter north of Zone 8.
Sources: Companion Plants, (740) 592-4643, www.CompanionPlants.com; Goodwin Creek Gardens, (800) 846-7359, www.GoodwinCreekGardens.com; Mountain Valley Growers, (559) 338-2775, www.MountainValleyGrowers.com; Mulberry Creek Herb Farm, (419) 433-6126, www.MulberryCreek.com.
Contributing editor Barbara Pleasant, author of The Whole Herb (Square One, 2004), writes and gardens at her home in Virginia.
For the main article The Essence of Rosemary, click here.
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