The botanical identity crisis of the 'Love Flower'

Countries & Cities · Published 15 October 2026 Swipe more like this →

In short: Named for the Greek word for love, Agapanthus is a global garden staple often mistaken for lilies. Yet, its scientific classification has been a battlefield of botanical debate for centuries, shifting between families as DNA technology reshaped our understanding of how these hardy perennials are actually related.

In 1788, Charles Louis L'Héritier de Brutelle created the Agapanthus genus. Despite its popularity, its taxonomic history is complex. Early classifications placed it in the broadly defined Liliaceae family. By 1985, researchers moved it to Alliaceae (the onion and garlic family), but a 1996 phylogenetic analysis of rbcL gene DNA sequences led to its resurrection into the Amaryllidaceae family. This move was initially contested by the Angiosperm Phylogeny Group in 1998 due to low bootstrap support, only to be solidified in the 2009 APG III system as the subfamily Agapanthoideae.

Native to Southern Africa—specifically South Africa, Lesotho, Eswatini, and Mozambique—the genus has naturalized globally. While many call them 'lily of the Nile' or 'African lily,' they are distinct from true lilies. They are characterized by leathery basal leaves reaching 60 cm in length and a rhizome (an underground storage organ similar to ginger) that produces thick, fleshy white roots. The flowers appear on an erect scape up to 2 m tall, arranged in a pseudo-umbel.

The genus faces modern ecological challenges. While generally pest-hardy, the Agapanthus borer moth has emerged as a significant threat in South Africa since the early 21st century. Interestingly, this moth is not an exotic invader but a translocated species from more northern regions of the country. Because it lacks its natural predators in new areas, it poses a risk to crops and gardens alike, even being considered a potential biological control for invasive Agapanthus praecox in New Zealand.

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