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When to plant hyacinths in Augusta: 4 October – 20 November

In Augusta, hyacinth: plant from 4 October to about 20 November. For planting stock, the places nearby include Longfellow's Greenhouses (garden centre, 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 Augusta: soil, season and weather

Nights then average below 0 °C in December–March; the coldest, January, averages -9.3 °C.

Planting4 October – 20 November
First autumn frost3 November
Coldest nightsJanuary, -9.3 °C
Soil back at 1 °C in spring10 March
Daylight11:36 on 4 October
Daylight at the winter solstice8:51

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

Hyacinth in Augusta: 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 Augusta the average daily temperature stays at 10 °C or lower for about 27 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

Around Augusta, Montpelier is 17 days earlier and Boston 10 days later.

CityDistanceDateDifference
Portland, Maine82 km5 October – 26 November1 day later
Concord187 km1 October – 25 November3 days earlier
Manchester (United States)200 km3 October – 27 November1 day earlier
Sherbrooke206 km27 September – 8 November7 days earlier
Montpelier221 km17 September – 11 November17 days earlier
Boston240 km14 October – 29 December10 days later

Where to buy hyacinth for planting in Augusta

Planting stock goes into the ground from 4 October to about 20 November; buy it before that. Within 15 km of Augusta OpenStreetMap lists 2 garden centres and 3 markets (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Augusta?

In Augusta, hyacinth: plant from 4 October to about 20 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 Augusta?

Last spring frost around 23 April, first autumn frost around 3 November.

Other crops in Augusta, with their dates