Haworthia blackburniae

Haworthia blackburniae, Kruisrivier
Haworthia blackburniae W.F.Barker

blackburniae: for Mrs H. Blackburn

H. blackburniae
is unusual species with long, slender, grass-like leaves. Usually it prefers in nature cooler, protected southern slopes. In some forms leaves are only 6 cm long but in others they can reach 20 cm. H. blackburniae has thick, fusiform roots.

Its distribution range is from Prinspoort in the west to Calitzdorp in the east.
H. blackburniae grows in some localities in dense clusters, in others it remains solitary. There is very interesting form near Calitzdorp at Kleinberg, where plants have much wider and shorter leaves.


Distribution map

In cultivation it is not easy plant, but if you keep in cooler place during hot summer days, it should be fine.
Propagation can be done by offsetts or by seed.

Haworthia blackburniae, Kleinberg, NEW PHOTO
Haworthia blackburniae, Kleinberg, NEW PHOTO
Haworthia blackburniae, Kleinberg, NEW PHOTO
Locality of H. blackburniae, Kleinberg, NEW PHOTO

Haworthia blackburniae, Kruisrivier
Haworthia blackburniae, Kruisrivier
Haworthia blackburniae, Kruisrivier
Locality of H. blackburniae, Kruisrivier
Haworthia blackburniae, Coetzeespoort
Haworthia blackburniae, Die Poort
Haworthia blackburniae, Die Poort
Haworthia blackburniae, Die Poort
Haworthia blackburniae, Die Poort

Locality of H. blackburniae, Die Poort
Haworthia blackburniae, NE. Buffelskloof Farm
Photo by Mirek Ricanek
Haworthia blackburniae, Calitzdorp
Photo by David Martin

Known localities:

  • Prinspoort (3320BC)
  • W. Ladismith (3321AC)
  • SW. Ladismith (3321CA)
  • Rooiberg (3321DA)
  • Assegaaibos (3321DA)
  • 12 km SW. Calitzdorp (3321DA)
  • Calitzdorp (3321DA)
  • Blackburn Valley (3321DA)
  • Warmbaths (3321DB)
  • S. Calitzdorp
  • Anysberg
  • 20 km S. Ladismith (3321CA)
  • Coetzeespoort (3321BD)
  • Kruisrivier (3321BD)
  • Die Poort (3321BC)
  • Rooiberg Pass (3321DA)
  • Kleinberg (3321DA)
  • NE. Buffelskloof Farm (3321BD)

1 comment:

Anonymous said...

The cultivar I have is called H. blackburniae var derustensis. It has rather long, narrow leaves and flowers in the winter in N. America. It has very thick roots as noted, and I pot it in a tall terra cotta pot with a clay based soil which dries quickly. It has suffered a maelybug attack in the past, but survived. I have had it since 2002 and it has not offset.