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When to plant hyacinths in Kitchener: 26 September – 21 November

In Kitchener, hyacinth: plant from 26 September to about 21 November. For planting stock, the places nearby include Artistic Landscaping (garden centre, 6 km) and Gmach Gardens (farm shop, 7 km); addresses and opening hours are below.

Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

The date is about two weeks before the average daily temperature here falls below 0 °C (ten years of weather): an estimate, not the day the ground freezes, and a cold spell can freeze it earlier. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Hyacinth in Kitchener: soil, season and weather

Nights then average below 0 °C in November–March; the coldest, January, averages -8.6 °C.

Planting26 September – 21 November
First autumn frost26 October
Coldest nightsJanuary, -8.6 °C
Soil back at 1 °C in spring11 March
Daylight12:01 on 26 September
Daylight at the winter solstice8:57

The same dates in Kitchener hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in Kitchener: depth, winter cold, pests and pets

Plant hyacinths 10 cm deep, at least 7.5 cm apart (RHS). In the ground hyacinths are fully hardy, but in containers they can be frost tender in cold winters (RHS); here winter nights average below 0 °C, so wrap the pots or move them to a sheltered spot.

In Kitchener the average daily temperature stays at 10 °C or lower for about 28 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 12–15 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Flowers get smaller in the years after planting: for full spikes, replace the bulbs or add a few new ones each autumn (RHS).

If squirrels are a problem, protect the bulbs with wire mesh (RHS). Hyacinths are toxic to dogs, cats and horses: intense vomiting and diarrhoea (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Hyacinth in nearby cities

All the nearest cities on our list plant hyacinth later than Kitchener; the closest date is in Toronto, 4 days later.

CityDistanceDateDifference
Hamilton57 km8 October – 10 December12 days later
Toronto94 km30 September – 25 November4 days later
Buffalo145 km11 October – 6 December15 days later
Erie149 km20 October – 22 December24 days later
Cleveland236 km22 October – 23 December26 days later
Rochester236 km13 October – 14 December17 days later

Where to buy hyacinth for planting in Kitchener

Planting stock goes into the ground from 26 September to about 21 November; buy it before that. Within 15 km of Kitchener OpenStreetMap lists 13 garden centres, 1 farm-supply shop, 4 markets and 5 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Kitchener?

In Kitchener, hyacinth: plant from 26 September to about 21 November. Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

When is the last spring frost in Kitchener?

Last spring frost around 30 April, first autumn frost around 26 October.

Other crops in Kitchener, with their dates