When to plant hyacinths in Teruel: 8 October – end of December

In Teruel, hyacinth: plant from 8 October to the end of December.

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 average daily temperature here stays above 0 °C all winter, and at least three months average 7 °C or less: our rule of thumb for the winter cold spring bulbs need. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS.

Hyacinth in Teruel: soil, season and weather

Nights then average below 0 °C in December–February; the coldest, January, averages -2.1 °C.

Planting	8 October – end of December
First autumn frost	7 November
Coldest nights	January, -2.1 °C
Soil back at 1 °C in spring	8 January
Daylight	11:29 on 8 October
Daylight at the winter solstice	9:17

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

Hyacinth in Teruel: 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 Teruel 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

All the nearest cities on our list plant hyacinth later than Teruel; the closest date is in Soria, 2 days later.

City	Distance	Date	Difference
Cuenca (Spain)	92 km	14 October – end of December	6 days later
Zaragoza	146 km	by 20 November	43 days later
Albacete	164 km	by 27 October	19 days later
Guadalajara (Spain)	176 km	by 25 October	17 days later
Soria	194 km	10 October – end of December	2 days later
Tudela	196 km	by 7 November	30 days later

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