HerbLensGo Plus
← Plant library
Plant photo

Photo: no rights reserved, CC0 (via iNaturalist)

Katharina's Night Phlox

Zaluzianskya katharinae

Also known as Katharina's night phlox, Drakensberg night phlox

At a glance
Family
Scrophulariaceae (figwort family, tribe Manuleae)
Type
Herbaceous flowering perennial
Parts used
Flowers (ornamental and fragrance only)
Size
Low, spreading clumps, roughly 15 to 30 cm tall
Bloom
Opens toward dusk, releasing scent through the evening and night
Habitat
Grassy mountain slopes and damp grassland of the South African high country, in and around the Drakensberg
Acquisition
Grow
This plant in HerbSense

Key benefits

Perfumes the garden at dusk
Draws in night-flying moths
Brings cottage garden charm
Extends interest into evening hours

Traditional uses

Katharina's night phlox belongs to a South African genus prized less for the medicine chest and more for the pleasure it brings to a garden at the end of the day. Like its better known cousins, it holds its small tubular flowers closed through the heat of the afternoon and opens them as the light fades, breathing out a sweet, carrying scent meant to draw moths across the veld in the dark. It has no documented history in traditional herbal medicine, and its story belongs to gardeners, botanists, and the pollinators that find it after sunset rather than to healers or apothecaries. The genus honors the Czech botanist Adam Zalužanský, and this species carries the name of a woman named Katharina, likely a collector or botanist's namesake, in the old naturalist's custom of dedicating a newfound flower to someone dear.

How to grow & use it

🔒

The full apothecary for Katharina's Night Phlox

Traditional remedies and step-by-step preparations, a complete growing guide, and how to harvest, dry, and store it, all unlocked with HerbLens Unlimited.

  • Remedies & preparations
  • Growing guide
  • Harvest & storage
Unlock every plant

From under $6 a month. Free plant identifications always included.

Pairs well with
  • Evening primrose
  • Flowering tobacco (Nicotiana)
  • Moonflower vine
Substitutes
  • Zaluzianskya capensis (common night phlox)
  • Zaluzianskya ovata
Choose it when

For a garden that saves its sweetest surprise for after the sun goes down.

Did you know?

The genus name Zaluzianskya honors the seventeenth century Czech botanist Adam Zalužanský, while many of its South African species, this one included, are nicknamed night phlox because their flowers stay tightly shut all day and only unfurl their fragrance as darkness falls, a trick aimed squarely at moths rather than daytime bees.

Safety

There is no documented history of Zaluzianskya katharinae being used internally as a food or medicine, so no traditional preparations are given here. Treat it as an ornamental garden plant only, not something to brew, steep, or eat, since its safety for ingestion has not been established and unknown allergens or sensitivities cannot be ruled out. Keep it out of reach of curious children and pets as a general precaution with any uncommon ornamental. If you are curious about its history, growing needs, or any accidental ingestion, speak with a horticulturist, botanist, or a qualified healthcare professional or poison control center rather than experimenting on your own.