minimum temp for Nerine?
Lee Poulsen (Mon, 30 Aug 2010 15:11:38 PDT)

Jim McKenney wrote:

From <http://plantzafrica.com/plantnop/…>: "Nerine
sarniensis belongs to the small group of four winter-growing species. It
is restricted to rocky mountain slopes in the Western Cape from
Citrusdal to Caledon, where it grows on south- and north-west facing
slopes."

Here are a few annual monthly temperature records for towns in this
general region. Wellington may be the most representative of the region
in this description. All of them (both warmer and cooler locations
included) drop below 17° C at night, even in the middle of summer.
(Sorry about the formatting; I'm in a hurry.)

WELLINGTON
Average Minimum Temperature

Jan Feb Mar Apr May Jun Jul Aug
Sep Oct Nov Dec Year
°C 16.5 16.9 15.3 12.6 9.3 6.8 5.9 6.8 8.8
11.7 14.1 15.6 11.7
°F 61.7 62.4 59.5 54.7 48.7 44.2 42.6
44.2 47.8 53.1 57.4 60.1 53.1
-----

CALVINIA
Average Minimum Temperature

Jan Feb Mar Apr May Jun Jul Aug
Sep Oct Nov Dec Year
°C 13.4 13.6 12.2 9.0 6.1 4.2 3.3 3.6 5.4
7.5 10.4 12.1 8.4
°F 56.1 56.5 54.0 48.2 43.0 39.6 37.9
38.5 41.7 45.5 50.7 53.8 47.1
-----

VREDENDAL
Average Minimum Temperature

Jan Feb Mar Apr May Jun Jul Aug
Sep Oct Nov Dec Year
°C 14.8 14.6 13.9 12.0 9.3 7.6 6.6 7.2 8.6
10.7 12.5 13.8 11.0
°F 58.6 58.3 57.0 53.6 48.7 45.7 43.9
45.0 47.5 51.3 54.5 56.8 51.8
-----

KIRSTENBOSCH - BOTANICAL GARDENS
Average Minimum Temperature

Jan Feb Mar Apr May Jun Jul Aug
Sep Oct Nov Dec Year
°C 15.6 15.6 14.7 12.8 10.5 9.2 8.2 8.5
9.6 11.3 13.2 14.6 12.0
°F 60.1 60.1 58.5 55.0 50.9 48.6 46.8
47.3 49.3 52.3 55.8 58.3 53.6
-----

--Lee Poulsen
Pasadena, California, USA - USDA Zone 10a