Colin Mills, compiler of the Hortus Camdenensis, died in late November 2012 after a short illness. As he always considered the Hortus his legacy, it is his family's intention to keep the site running in perpetuity. It will not, however, be updated in the near future.

Juniperus horizontalis Moench.

Fully-hardy, prostrate, creeping, evergreen shrub with sharp-pointed juvenile leaves in pairs or threes, scale-like adult leaves, lying flat along the shoots in 4 rows, and ovoid, dark blue fruit.  To 30cm by indefinite.  There are many garden forms.  [RHSE, Hortus, Hilliers’].

Horticultural & Botanical History

Introduced to Europe in 1836.  [RHSD].  ‘Juniperus horizontalis Moench.  Creeping Cedar.  Common on the east slope [of Glazier Park] in open places up to timber line or even above.  B.C. to Wyo., Minn., N. Y., and N. S. (Sabina horizontalis Rydb.) - Prostrate shrub, often forming great mats; leaves green or bluish; fruit dark blue, 1 to 3-seeded.

This species is most abundant at low altitudes; at St. Mary it forms great carpets over the flats, the branches usually lying close against the ground.  On shale slopes of a canyon near the east entrance two forms of this plant were observed, one with bright green leaves, the other with bluish leaves.  At a short distance the difference in color was very striking.’  [Contributions from the United States National Herbarium vol.22, p.277/1921].

History at Camden Park

Listed in the 1845, 1850 and 1857 catalogues [C.45/1845].


Juniperus prostrata Pers. (1807) = Juniperus sabina L.

See also Juniperus sabina L. var. tamariscifolia Ait.

Published Aug 03, 2009 - 12:47 PM | Last updated Jul 16, 2010 - 05:04 PM

Family Cupressaceae
Region of origin

North America

  • Sabina horizontalis Rydb.
  • Juniperus prostrata Risso
Common Name

Shrubby red cedar, Creeping juniper

Name in the Camden Park Record

Juniperus prostrata 

Confidence level high