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When to plant daffodils in Viana do Castelo: by 12 November

In Viana do Castelo, daffodil: plant by 12 November. The winter here is too mild for our late-planting rule, so we give no later limit.

Daffodil in Viana do Castelo: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 4.3 °C.

Plantingby 12 November
First autumn frost12 December
Coldest nightsJanuary, 4.3 °C
Soil back at 7 °C in springalready in the first week of January
Daylight9:58 on 12 November
Daylight at the winter solstice9:09

The same dates in Viana do Castelo hold for Garlic, Tulip, Crocus and Hyacinth.

Daffodil in Viana do Castelo: depth, winter cold, pests and pets

Plant daffodils three times the bulb’s height deep (RHS): about 13–15 cm for large bulbs, 15–20 cm apart (University of Georgia Extension). The RHS advises planting them early in autumn, ideally in September in the UK, so do not leave them late: aim for the start of the window, 12 November.

In Viana do Castelo the average daily temperature stays at 10 °C or lower for about 15 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 15–17 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Daffodils are long-lived: clumps slowly expand over the years (RHS). Leave the leaves for at least eight weeks after flowering — they feed next year’s flowers (University of Georgia Extension).

Squirrels avoid daffodils, so they can be planted among tulips to reduce losses (RHS). Daffodils are toxic to dogs, cats and horses; the bulbs are the most poisonous part, and a large amount can cause convulsions and heart rhythm problems (ASPCA).

Sources: RHS, University of Georgia Extension, Wisconsin Horticulture Extension, ASPCA.

Daffodil in nearby cities

Around Viana do Castelo, Ourense is 9 days earlier and Braga 11 days later.

CityDistanceDateDifference
Braga37 kmby 23 November11 days later
Porto63 kmby 19 November7 days later
Vila Real101 kmby 22 November10 days later
Ourense108 kmby 3 November9 days earlier
Santiago de Compostela135 kmby 17 November5 days later
Viseu138 kmby 10 November2 days earlier

Where to buy daffodil for planting in Viana do Castelo

Planting stock goes into the ground by 12 November; buy it before that. Within 15 km of Viana do Castelo OpenStreetMap lists 1 farm-supply shop, 1 plant nursery and 3 markets (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant daffodils in Viana do Castelo?

In Viana do Castelo, daffodil: plant by 12 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 Viana do Castelo?

Last spring frost around 3 February, first autumn frost around 12 December.

Other crops in Viana do Castelo, with their dates