The frost-free period is 100 to 165 days. These are the competing Lickskillet soils and the Anderly, Agency, Cantala, Condon, Gem, Maupin, Morrow, Reywat, Ritzville, Ruckles, Starbuck, Walla Walla, Wapinitia, Watama and Wrentham soils. Agency soils are moderately deep to bedrock and have less than 35 percent rock fragments. Cantala soils are fine-silty and deeper than 1 meter to bedrock. Gem and Morrow soil have an argillic horizon and are moderately deep to bedrock.
Maupin soils have a duripan and are fine-loamy.
Reywat soils are shallow and have a skeletal argillic horizon. Ritzville and Walla Walla soils are deep or very deep, formed in loess and are free of rock fragments. Ruckles soils have a very stony argillic horizon. Starbuck soils are on steep south-facing slopes, lack a mollic epipedon, formed mostly in loess and contain less than 35 percent rock fragments. Wapinitia soils are deep and have an argillic horizon.