VERONICA
x BLACKROOT
x BOWMAN'S ROOT
x CULVER'S ROOT
x IRONWEED
xx PLANT
Veronicas. A guide to species for the perennial border, as ground cover and the rock garden. FINE GARDENING #25 May-Jun 1992 pg. 34
Veronicas, a guide to tall, medium-height and ground cover cultivars. Advice on their use in gardens, care and culture. GARDEN GATE #22 Aug 1998 pg. 34
A review of Veronicas (speedwells, ironweed) for the home garden and their culture. HORTICULTURE Jun-Jul 1994 (v.72#6) pg. 31
Culver's root (Veronicastrum virginicum). Its attributes and culture. HORTICULTURE Aug-Sep 1997 (v.94#7) pg. 86
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