Canada's Plant Hardiness Site

Plant Hardiness Zone by Municipality

	1961-1990 zone	1981-2010 zone	1961-1990 hardiness index	1981-2010 hardiness index
Hagersville	6a	6b	62	65
Haileybury	2b	3b	28	36
Haliburton	4a	4b	40	46
Halton Hills	5b	5b	55	58
Hamilton	6a	6b	63	69
Hammond	4b	5a	48	53
Hanover	5a	5b	52	57
Harriston	5a	5b	50	57
Harrow	6b	7a	67	71
Harrowsmith	5a	5b	54	58
Harty	1b	2a	17	24
Harwood	5a	5b	53	57
Hastings	5a	5b	52	57
Havelock	5a	5b	51	56
Hawk Junction	2b	3a	26	33
Hawkesbury	4b	5a	48	53
Hawkestone	5a	5b	51	57
Hearst	1b	2a	15	23
Hemlo	2b	3a	25	33
Hensall	5b	6a	59	64
Hepworth	5b	6a	55	61
Heron Bay	3a	3a	30	34
Hiawatha	5a	5b	53	57
Highgate	6a	6b	61	65
Highgate	6a	6b	61	65
Hillsburgh	4b	5b	49	55
Hillside	3b	4b	39	48
Hillsport	1b	2b	18	29
Hilton Beach	4a	5a	43	51
Holland Centre	5a	5b	50	56
Holstein	4b	5b	49	56
Honey Harbour	5a	5b	52	58
Honeywood	4b	5a	46	54
Hornepayne	1b	2b	17	26
Horning's Mills	4b	5a	46	54
Horseshoe Valley	5a	5b	52	57
Hudson	3a	3b	30	37
Huntsville	3b	4b	39	48
Hurkett	2b	3b	25	37
Huron East	5a	6a	54	60
Huron Park	6a	6b	60	65
Hymers	2b	3a	29	34