minimum temp for Nerine?

Lee Poulsen wpoulsen@pacbell.net
Mon, 30 Aug 2010 15:11:38 PDT
Jim McKenney wrote:
> Now can you tell us if it ever gets that cool in Nerine country? 
>   

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


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