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When to plant hyacinths in Wilmington: by 1 November

In Wilmington, hyacinth: plant by 1 November. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include Walmart Garden Center (garden centre, 4 km) and The Transplanted Garden (garden centre, 4 km); addresses and opening hours are below.

Hyacinth in Wilmington: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 3.9 °C.

Plantingby 1 November
First autumn frost1 December
Coldest nightsJanuary, 3.9 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:48 on 1 November
Daylight at the winter solstice9:52

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

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

Plant hyacinths 10 cm deep, at least 7.5 cm apart (RHS).

In Wilmington the average daily temperature stays at 10 °C or lower for about 5 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. That is less than the bulbs need, and without more cold they may not flower properly. Where winters are not cold enough for long enough, LSU AgCenter keeps tulip and hyacinth bulbs in the refrigerator for at least six to eight weeks before planting, and plants them only once the soil has cooled: warm soil can cancel the chilling. Keep fruit out of that refrigerator — ripening fruit gives off ethylene, which harms the flowers (Wisconsin Horticulture Extension).

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, LSU AgCenter, ASPCA.

Hyacinth in nearby cities

All the nearest cities on our list plant hyacinth earlier than Wilmington; the closest date is in Columbia, 2 days earlier.

CityDistanceDateDifference
Raleigh186 kmby 20 October12 days earlier
Columbia290 kmby 30 October2 days earlier
Charlotte292 kmby 14 October18 days earlier
Richmond373 kmby 17 October15 days earlier
Greenville420 kmby 23 October9 days earlier
Asheville452 km3 October – end of December29 days earlier

Where to buy hyacinth for planting in Wilmington

Planting stock goes into the ground by 1 November; buy it before that. Within 15 km of Wilmington OpenStreetMap lists 2 garden centres (collected 29 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Wilmington?

In Wilmington, hyacinth: plant by 1 November. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in Wilmington?

Last spring frost around 8 March, first autumn frost around 1 December.

Other crops in Wilmington, with their dates