Winter-hardy Mammoth™ Series Garden Chrysanthemums ‘Red Daisy’, ‘White Daisy’, and ‘Coral Daisy’ Sporting a Shrub Plant Habit

Abstract

Three new Chrysanthemum ·hybrida, garden chrysanthemum cultivars: Red Daisy, White Daisy, and Coral Daisy, are the first in the Mammoth TM series that are advanced interspecific hybrids derived from an open-pollinated cross between hexaploid C. weyrichii (Maxim.) Tzvelv. · C. ·grandiflora Tzvelv. These cultivars are backcross or inbred derivatives of the original interspecific F 1 hybrids. All three cultivars are U.S. Department of Agriculture Z3b (-34.4 8C to -37.2 8C) winter-hardy herbaceous perennials exhibiting a shrub habit with the cushion phenotype. Additional traits exhibited by these three cultivars are butterfly attractants, frost tolerance of the flowers, and genetic 'self-pinching.' These Mammoth TM cultivars are clonally propagated, virus indexed, protected by U.S. Plant Patents and Canadian Plant Breeder's Rights, and are available from the North American exclusive licensee Ball Seed Company.Chrysanthemums (Chrysanthemum ·grandiflora Ramat.; =Dendranthema · grandiflora Tzvelv.) are popular cut flowers, potted flowering plants, and perennial garden favorites worldwide with thousands of cultivars available (Anderson, 2006). Garden chrysanthemums are the number one herbaceous perennial in the United States, with a wholesale farmgate value of $141.845 million in (U.S. Dept. Agr, 2006. Numerous factors contribute to the long-term popularity of garden chrysanthemums, including fall flowering (most cultivars are obligate shortday plants), a wide range of flower types and colors, distinct plant habits (upright, cushion, groundcover), and winter hardiness (particularly for northern gardeners

Mammoth™ ‘Yellow Quill’ Garden Chrysanthemum

“…Mammothä 'Yellow Quill' (Minnesota Sel'n (Anderson et al, 2008) between two allohexaploid (2n = 6x = 54) species, C. weyrichii (Maxim.) Miyabe 'Pink Bomb' • C. •grandiflora Tzvelv.…”

“…1). To distinguish these unique interspecific hybrids, which exhibit shrub-like growth in Year 2 onward, from classic garden and/or greenhouse chrysanthemums [ (Anderson et al, 2004(Anderson et al, , 2008. Hybrid genotype Mn.…”

Chrysanthemum ×hybridum MN 98-89-7 Shrub Garden Chrysanthemum

“…1) is the result of a series of outcrosses of hybrid descendants of the original cross in 1989 between two allohexaploid (2n = 6x = 54) species, C. weyrichii (Maxi.) Miyabe 'Pink Bomb' (http://davesgarden.com/guides/pf/ go/164055/#b) · [C. ·grandiflorum 'Adorn' (PP 6059) or 'Crusdaor' (PP 6531)] (Anderson et al, 2008). The resulting hybrid cross, MN 90-287, produced hundreds of viable seed in 1990 and hybrid MN 90-287-326 was selected and hybridized in 1991 as a male parent with MN 89-409-19 as the female inbred parent.…”

“…Use MN 98-89-7 is a winter-hardy herbaceous perennial that attracts honey bees and butterflies during the flowering period, similar to all Mammothä cultivars (Anderson et al, 2008). It is a low-maintenance plant that does not require pinching the terminal meristem before July 4 to induce lateral branching (Langevin, 1992;Widmer, 1980).…”

Chrysanthemum ×grandiflorum MN Sel’n. 90-275-27 Groundcover Garden Chrysanthemum

“…Anderson, 1990Anderson, -2000. Most derived, interspecific progeny from the cross C. weyrichii 'Pink Bomb' · [C. ·grandiflorum 'Adorn' (PP 6059) or 'Crusador' (PP 6531)] were either nonflowering (rosetted) or have large, shrub-like plant habits characteristic of the 'Mammothä' series (Anderson et al, 2008). 749) is the first groundcover type of winter-hardy garden chrysanthemum.…”