BIENNIAL PLANT
sa PLANT
xx FLOWER
xx PLANT
Attributes of Trachelium caeruleum noted. FINE GARDENING #57 Sep-Oct 1997 pg. 20
An early spring chartreuse biennial, Smyrnium perfoliatum, its characteristics and culture. FINE GARDENING #70 Nov-Dec 1999 pg. 18
Biennials, a special group of flowers for the garden. FLOWER & GARDEN Aug-Sep 1992 (v.36#4) pg. 34
Biennials. A guide to eight that act like perennials because they self-seed. Includes plan for a 5x8-ft. kidney shaped biennial garden. GARDEN GATE #21 Jun 1998 pg. 14
Growing biennial flowers, a step-by-step guide. HORTICULTURE May 1999 (v.96#4) pg. 54
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