Posted at December 8, 2010 in News by JHPS Gardens

Over wintering Citrus

 
All citrus plants need winter protection, and for high qualities batch a frost-free greenhouse (10-15c/50-59f) or airy conservatory is best, however a sunny windowsill in an unheated room is also a good idea. Water the citrus plants moderately in winter and allow the surface to dry out between watering.
It is important to keep the humidity at a high level especially in homes with central heating. Over-watering can cause leaves to yellow and fall. 
 
Citrus
Min night Temp
Over-wintering advice
 
Lemon
(Citrus Limon)
5-10c
(41-50f)
Very sensitive to temperature change
Lime
(Citrus Aurantiifolia)
12-16c
(54-61)
Young growths can be killed by frost
Makrut Lime
(Citrus x meyeri ‘meyer’)
15c
(59f)
Over winter in a bright place
Sour of bitter Orange
(Citrus aurantium)
5-10c
(41-46f)
Can stand lower temperatures and can withstand some frost
Calamondin
(X Citrofortunella microcarpa, Citrus mitis)
 
12-16c
(54-61f)
Dislikes to much winter warmth keep cool and bright
Grapefruit or Pomelo
(Citrus x paradise)
 
10-12c
 (50-54f)
 
Sensitive to low temperatures. Keep above 10c (50f)
Mandarin Orange
(Citrus reticulate mandarin group)
 
5c
(41f)
One of hardiest citrus, but likes to be kept cool and bright
Sweet Orange
(Citrus sinensis)
 
5c
(41f)
Relatively hardy but likes as much sunlight in winter as possible

JHPS hope this guide to looking after your citrus plants over the winter period has helped, however if there are any further questions that you would like to know about citrus plants please contact us on: –

Free Phone:  0800 0937926
Head Office:  01782 396168
Email: info@jhps-gardens.co.uk