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When to plant hyacinths in Oviedo: by 6 November

In Oviedo, hyacinth: plant by 6 November. The winter here is too mild for our late-planting rule, so we give no later limit.

Hyacinth in Oviedo: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 2.3 °C.

Plantingby 6 November
First autumn frost6 December
Coldest nightsJanuary, 2.3 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:05 on 6 November
Daylight at the winter solstice8:58

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

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

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

In Oviedo the average daily temperature stays at 10 °C or lower for about 20 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 Oviedo, León (Spain) is 28 days earlier and Gijón 11 days later.

CityDistanceDateDifference
Gijón25 kmby 17 November11 days later
León (Spain)88 km9 October – end of December28 days earlier
Ponferrada108 km28 October – end of December9 days earlier
Lugo144 kmby 4 November2 days earlier
Palencia185 km13 October – end of December24 days earlier
Bragança188 km27 October – end of December10 days earlier

Where to buy hyacinth for planting in Oviedo

Planting stock goes into the ground by 6 November; buy it before that. Within 15 km of Oviedo OpenStreetMap lists 4 garden centres, 5 farm-supply shops, 2 plant nurseries, 3 markets and 1 farm shop (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Oviedo?

In Oviedo, hyacinth: plant by 6 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 Oviedo?

Last spring frost around 31 March, first autumn frost around 6 December.

Other crops in Oviedo, with their dates