New, distinct and stable cultivars of double-flowering Kalanchoe interspecific hybrids are disclosed. Double-flowering Kalanchoe interspecific hybrids produce one or more flowers with at least 5 full or partial petals per flower. Double-type K. blossfeldiana×K. laciniata, K. blossfeldiana×K. rotundifolia, K. blossfeldiana×K. aromatica, K. blossfeldiana×K. pubescens, K. blossfeldiana×K. grandiflora, K. blossfeldiana×K. citrina, K. blossfeldiana×K. ambolensis, K. blossfeldiana×K. faustii, K. blossfeldiana×K. schumacherii, K. blossfeldiana×K. pritwitzii, K. blossfeldiana×K. flammea, K. blossfeldiana×K. figueredoi, K. blossfeldiana×K. rauhii, K. blossfeldiana×K. obtusa, K. blossfeldiana×K. pumila, K. blossfeldiana×K. marmorata, K. blossfeldiana×K. porphyrocalux, K. blossfeldiana×K. jongmansii, K. blossfeldiana×K. pinnata, K. blossfeldiana×K. diagremontiana, K. blossfeldiana×K. gracilipes, K. blossfeldiana×K. campanulata, K. blossfeldiana×K. latisepela, K. blossfeldiana×K. coccinea, K. blossfeldiana×K. fedtschenkoi, K. blossfeldiana×K. tubiflora, K. blossfeldiana×K. decumbens, K. blossfeldiana×K. manginii, K. blossfeldiana×K. orgyalis, K. blossfeldiana×K. crenata and K. blossfeldiana×K. tomentosa are disclosed. The double-type flowering characteristic has been combined with many desirable Kalanchoe traits including different flower colors, growth characteristics and plant habit. Methods for the reliable breeding of the double-type characteristic into diverse Kalanchoe genetic backgrounds, as well as methods for increasing the number of petals per flower, are disclosed.