In habitat Phygelius aequalis plants thrive in shade, near water, among rocks high on mountain slopes. The photo is from the KwaZulu-Natal Drakensberg.
Sunbirds are well equipped to obtain nectar from the long tubes and play an important role in the plant’s pollination. But so do bees and butterflies (Manning, 2009; Pooley, 1998; iNaturalist; https://pza.sanbi.org).