When to plant hyacinths in Brno: 7 October – 24 December

In Brno, hyacinth: plant from 7 October to about 24 December. For planting stock, the places nearby include Zahradnictví u Mašků (garden centre, 3 km) and Zahradnictví Julíánov (garden centre, 4 km); addresses and opening hours are below.

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 date is about two weeks before the average daily temperature here falls below 0 °C (ten years of weather): an estimate, not the day the ground freezes, and a cold spell can freeze it earlier. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Hyacinth in Brno: soil, season and weather

Nights then average below 0 °C in December–February; the coldest, January, averages -3.4 °C.

Planting	7 October – 24 December
First autumn frost	6 November
Coldest nights	January, -3.4 °C
Soil back at 1 °C in spring	11 January
Daylight	11:20 on 7 October
Daylight at the winter solstice	8:12

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

Hyacinth in Brno: 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 Brno the average daily temperature stays at 10 °C or lower for about 26 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

1 of the nearest cities share Brno's date.

City	Distance	Date	Difference
Pardubice	111 km	11 October – end of December	4 days later
Vienna	111 km	13 October – 29 December	6 days later
Bratislava	122 km	17 October – end of December	10 days later
Ostrava	138 km	10 October – end of December	3 days later
České Budějovice	158 km	7 October – end of December	same day
Prague	184 km	9 October – end of December	2 days later

Where to buy hyacinth for planting in Brno

Planting stock goes into the ground from 7 October to about 24 December; buy it before that. Within 15 km of Brno OpenStreetMap lists 15 garden centres, 3 farm-supply shops, 1 plant nursery, 6 markets and 7 farm shops (collected 28 October 2026).

Zahradnictví Chaloupka — garden centre
Nová 2, 66441 Troubsko · Tue–Fri 09:00–12:00; Tue–Fri 13:00–17:00; Sat 09:00–12:00 · 8 km · zahradnictvichaloupka.webnode.cz
Zahradnictví Brabec — garden centre
Chrlická 875, 66442 · Mon–Fri 08:30–18:00; Sat–Sun 08:00–18:00 · 8 km · brabeczc.cz
Zahradnictví u Mašků — garden centre
Mar–Oct Mon–Fri 08:00–18:00; Nov, Dec, Jan, Feb Mon–Fri 08:00–17:00; Sat 08:00–12:00; Sun, public holidays closed · 3 km · zahradnictvi-u-masku.cz
Zahradnictví Julíánov — garden centre
Mon–Fri 08:00–18:00; Sat 08:00–12:00 · 4 km · facebook.com
Zahradnictví Brno Kresa s.r.o. — garden centre
Mon–Fri 09:00–18:00, Sat 09:00–15:00 · 6 km · zahradnictvi-brno.cz
Zahradnictví Alois Musil — garden centre
Švehlova 10, 66451 Šlapanice · Mon–Tue 08:00–11:30, 13:30–17:00; Wed 14:00–17:00; Thu–Fri 08:00–11:30, 13:30–17:00; Sat 08:00–11:00 · 9 km
Zahradnictví Libor Hrozek — garden centre
V dědině 67, 66459 · Mon, Wed, Fri 08:00–11:30, 14:00–17:00; Tue, Thu 14:00–17:00; Sat 08:00–11:00 · 13 km
Zahradnictví u Kopřivů — garden centre
Mon–Sun 08:00–18:00 · 15 km · zahradnictvisebrov.cz

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