Zone 6 features a fairly pleasant weather with minimum temperature from -15 to -10 degree F. Cold weather combined with a mild summer, there are a lot more plants choice for growers. See more ideas about succulents, plants, planting succulents. Those growing in zone 6 might tolerate colder or hotter zones â¦ Typical states: â¦ Zone 6 is one of the 13 hardiness zones of the USA. This zone has average cold temperatures from -10°F to 0°F so you should make sure that youâre picking plants that will withstand this temperature range. Apr 20, 2020 - Explore Teresa Coppola's board "ZONE 6A SUCCULENTS/CACTUS", followed by 332 people on Pinterest. They can tolerate cold down to approximately -20.6 ºC (-5 ºF) Succulents In Zone 5 And Zone 6. Itâs not unheard of for some types of succulents to do well in Zone 4 locales, even Zone â¦ Types of Perennials that Grow in Zone 6 Perennials are plants that will bloom year after year. Many people are surprised to know succulents can survive, indeed thrive, in colder conditions. These plants are rated USDA 6b.