Caladiums (Caladium ×hortulanum Birdsey, Araceae Juss.) are often grown in containers or planted in the landscape as accent and border plants (Deng, 2018; Evans et al., 1992). They are valued for their variable-shaped, bright foliage. The majority of commercial caladium plants sold at retail are produced by forcing tubers in containers. Florida field growers produce essentially all the caladium tubers used in the United States and some 40 countries in the world for the production of pot plants and direct planting in the landscapes. Commercial caladium cultivars are often grouped into eight categories based on their leaf type and impact color [fancy white, red, pink, and novelty, and lance (or strap) white, red, pink, and novelty] (Bell et al., 1998). One of the cultivars in the fancy novelty group is ‘Miss Muffet’. The leaves of this cultivar are characterized by a yellow (lemon or chartreuse) leaf background color, white main veins, and numerous burgundy spots. It ranked 40th among caladium cultivars grown by the Florida caladium industry in 1979 (Wilfret and Hurner, 1982). In the past 2 decades, this cultivar gained popularity. It ranked 19th in 2003 (Deng et al., 2008b), 16th in 2008, and 13th in 2013 (Z. Deng, unpublished data). The acreage in Florida planted for ‘Miss Muffet’ tuber production has been between 22 and 26 acres (Deng et al., 2008b; Z. Deng, unpublished data).
In caladium, the yellow leaf background color is controlled by a single dominant allele (LEM) and is tightly linked (≈3 to 4 cM) to the nonspotting allele (s) (Cao et al., 2017). The yellow leaf background color allele is expected to be tightly linked to the nonblotching allele (b) (Deng and Harbaugh, 2009). These genetic linkages may have led to the scarcity of commercial cultivars with yellow leaf background color and leaf spots or blotches.
‘Sea Foam Pink’ is a new addition to the fancy novelty caladium cultivar group, particularly to the ‘Miss Muffet’ subgroup. Leaves of ‘Sea Foam Pink’ are characterized by a novel coloration pattern: light yellow background color and multiple pink blotches (Figs. 1–3).
CaoZ.SuiS.YangQ.DengZ.2017A single gene controls leaf background color in caladium (Araceae) and is tightly linked to genes for leaf main vein color, spotting and rugosityHort. Res.416067 doi: 10.1038/hortres.2016.67
CarnathanP.2012The Postman Joyner caladium a very popular caladium grows decades later in a Tampa garden—to the surprise of its homeowners. Tampa Bay Times. 9 Sept. 2018. <http://www.tampabay.com/features/homeandgarden/the-postman-joyner-caladium-a-very-popular-caladium-grows-decades-later-in/1252347>
DengZ.2018Caladium p. 273–299. In: J. Van Huylenbroeck (eds.). Ornamental crops. Handbook of plant breeding vol. 11. Springer Cham Switzerland
DengZ.HarbaughB.K.2009Leaf blotching in caladium (Araceae) is under simple genetic control and tightly linked to vein colorHortScience444043
DengZ.GoktepeF.HarbaughB.K.2008aInheritance of leaf spots and their genetic relationships with leaf shape and vein color in caladiumJ. Amer. Soc. Hort. Sci.1337883
DengZ.HarbaughB.K.KellyR.O.SeijoT.McGovernR.J.2005bScreening for resistance to pythium root rot among twenty-three caladium cultivarsHortTechnology15631634
DengZ.HarbaughB.K.SchoellhornR.K.AndrewR.C.2008b2003 Survey of the Florida caladium tuber production industry. Univ. of Fla. /IFAS extension fact sheet ENH 1007. 16 July 2010. <http://edis.ifas.ufl.edu/EP258>
EvansM.R.WilfretG.J.HarbaughB.K.1992Caladiums as potted and landscape plants. IFAS Univ. of Fla. Agr. Ext. Serv. Circ. 1060. 6 pp
GeraldsonC.M.OvermanA.J.JonesJ.P.1965Combination of high analysis fertilizers, plastic mulch and fumigation for tomato production on old agricultural landProc. Soil Crop Sci. Soc. Fla.251824
GoktepeF.SeijoT.DengZ.HarbaughB.K.PeresN.A.2007Toward breeding for resistance to Fusarium tuber rot in caladium: Inoculation technique and sources of resistanceHortScience4211351139
HarbaughB.K.TjiaB.O.1985Commercial forcing of caladiums. IFAS Univ. of Fla. Agr. Ext. Serv. Circ. 621. 13 pp
RhodesH.L.1964Effect of hot water treatment of seed tubers and soil fumigation for control of root knot on yield of caladiumsPlant Dis. Rep.8568571
Royal Horticultural Society1986RHS Colour Chart. Royal Hort. Soc. London. SAS Institute. 2016. JMP Pro 12.0.1. SAS Institute Cary NC
WilfretG.J.HurnerG.T.Jr1982A survey of caladium cultivars grown in Florida and their characteristics as potted plantsProc. Annu. Meet. Fla. State Hort. Soc.95190194