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Allan designs and plants flowering gardens in Montreal, Zone 5 [USDA Zone 4] .

See website, design work and favorite flowering plants at

Consultation and coaching for do-it-yourselfers is provided. Occasional emailed questions are welcome and answered free of charge. Oui, je parle francais.

See my work on Pinterest at Garden Guru Montreal

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Annuals for Perennials

I live in Zone 5a where Verbena Bonariensis grows as an annual from early summer to late fall. It reaches maturity by August with a height of 3 to 5 feet and a width of 1 to 2 feet. This is an airy filler plant with tall upright branching stems that weave up through other flowers and ornamental grasses. It is most effective growing in the middle of the flower border with a backdrop of taller plants behind it. Use it in front of Perovskia [Russian Sage] and see how the combination of silver blue Perovskia and lavender blue Verbena creates an almost ethereal effect. It was photographed below in early summer in combination with other  plants, when the Perovskia was still in its infancy. This photo is courtesy of Ms.Violette Sauriol, horticultural foreperson of the Parks Department of the City of Cote St Luc, in Quebec, Canada.

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