It is really thirsty, water freely during growing months and moderately in Winter. Keep soil evenly moist, but do not overwater making the soil too soggy.
Ptilotus exaltus var. exaltatus (also Pink Mulla Mulla) is one of the largest mulla mullas. This ephemeral in a good season grows to 1.5m tall, though in poor years it may be only a few cm tall. There is a basal rosette of spathulate-oblanceolate smooth leaves up to 10 cm long, the stem leaves being shorter.