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When to plant hyacinths in Santiago de Compostela: by 17 November

In Santiago de Compostela, hyacinth: plant by 17 November. The winter here is too mild for our late-planting rule, so we give no later limit.

Hyacinth in Santiago de Compostela: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 5 °C.

Plantingby 17 November
First autumn frost17 December
Coldest nightsJanuary, 5 °C
Soil back at 1 °C in springalready in the first week of January
Daylight9:41 on 17 November
Daylight at the winter solstice9:01

The same dates in Santiago de Compostela hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in Santiago de Compostela: depth, winter cold, pests and pets

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

In Santiago de Compostela the average daily temperature stays at 10 °C or lower for about 16 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 Santiago de Compostela, Ponferrada is 20 days earlier and Braga 6 days later.

CityDistanceDateDifference
Lugo80 kmby 4 November13 days earlier
Ourense81 kmby 3 November14 days earlier
Viana do Castelo135 kmby 12 November5 days earlier
Braga148 kmby 23 November6 days later
Ponferrada163 km28 October – end of December20 days earlier
Vila Real187 kmby 22 November5 days later

Where to buy hyacinth for planting in Santiago de Compostela

Planting stock goes into the ground by 17 November; buy it before that. Within 15 km of Santiago de Compostela OpenStreetMap lists 8 garden centres, 11 farm-supply shops, 4 plant nurseries and 4 markets (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Santiago de Compostela?

In Santiago de Compostela, hyacinth: plant by 17 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 Santiago de Compostela?

Last spring frost around 6 February, first autumn frost around 17 December.

Other crops in Santiago de Compostela, with their dates