Canada's Plant Hardiness Site

Plant Hardiness Zone by Municipality

	1961-1990 zone	1981-2010 zone	1961-1990 hardiness index	1981-2010 hardiness index
Rainy River	3a	4a	33	41
Raith	1b	3a	18	30
Rama Road	5a	5b	51	57
Red Bay	5b	6a	56	62
Red Lake Road	3a	4a	31	40
Red Rock	2a	3a	24	34
Redditt	3a	4a	31	40
Renfrew	4a	5a	43	50
Richards Landing	4a	5a	43	51
Richmond	4b	5b	49	56
Richmond Hill	5b	6a	55	61
Rideau Ferry	5a	5b	50	56
Ridgetown	6a	6b	62	66
Ripley	5b	6a	55	62
River Valley	3b	4a	38	44
Roblin	5a	5b	53	58
Rockland	4b	5a	48	53
Rockport	5b	6a	57	61
Rockwood	5a	5b	52	56
Rodney	6a	6b	60	65
Rolphton	3b	4b	38	47
Roseneath	5a	5b	52	57
Roslin	5a	5b	53	58
Rosseau	4a	5a	44	51
Rossmore	5b	6a	57	63
Rossport	2b	3b	26	35
Round Lake Centre	3b	4b	39	46
Russell	5a	5b	50	55