Soapweed yucca is capable of reproducing sexually or through vegetative means.
Various treatments can influence germination. One of the most interesting and well-studied aspects of yucca ecology centers around the symbiotic relationship between yuccas and their yucca moth pollinators. Vegetative regeneration allow soapweed yucca to survive and expand on sites with significant competition such as prairie grasslands. Rhizomes are covered with a thick, rough, protective bark, branch and spread horizontally with vertical branches growing to the soil surface where new leafheads are formed. Ramets are produced in late summer from lateral buds at the base of the inflorescence or from rhizomes near senescent rosettes.