Overview

Watsonia densiflora is a bulbous perennial in the genus Watsonia, part of the Iridaceae family. Watsonia densiflora grows best in full sun, and tolerates well-drained soils. It is native to KwaZulu-Natal, Eastern Cape and South Africa.

About the genus

Watsonia is a genus of plants in the family Iridaceae, subfamily Crocoideae. Watsonias are native to southern Africa. The genus is named after Sir William Watson, an 18th-century British botanist.

Wikipedia contributors, "Watsonia (plant)", CC BY-SA 4.0 — Watsonia (plant)

In the garden

Watsonia densiflora is a bulbous perennial in the Iridaceae, originating from KwaZulu-Natal and the Eastern Cape of South Africa. In cultivation it contributes a clear summer phase, flowering in the UK from June to August. The species’ southern African origin means it performs best where it receives strong sun through the main growing season. Site selection is straightforward: choose a location in full sun with well-drained soil and avoid waterlogged hollows. Maintain a moderate level of soil moisture through the growing season rather than constant wetness; established bulbs appreciate a drier rest when above-ground growth dies back. Feed lightly in spring with a balanced fertiliser if the soil is poor, and protect from winter waterlogging in cooler, damp areas of the UK. Use Watsonia densiflora where you need reliable midsummer interest in sunny borders or mixed perennial beds. Because its main flowering window is June to August, place it where surrounding plants can be timed to either lead into or follow on from its display, so the bed remains active through summer.

Growing conditions

Best soil and position for Watsonia

Sunlight
full sun
Soil type
well-drained
Soil moisture
moderate

Plant details

Watsonia densiflora size, habit and characteristics

Plant type
bulbous perennial
Native to
KwaZulu-Natal, Eastern Cape, South Africa

Care notes

Pruning and caring for Watsonia densiflora

Propagation
corm division

Frequently asked questions

Where is the best place to plant Watsonia densiflora?

Watsonia densiflora prefers full sun.

What soil does Watsonia densiflora need?

Watsonia densiflora grows best in well-drained soil. Aim for soil that stays moderate.

How do I propagate Watsonia densiflora?

Corm division.

From the Fenn Plants journal

More in the Watsonia genus

Browse all Watsonia →