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When to plant hyacinths in Tbilisi: 16 October – end of December

In Tbilisi, hyacinth: plant from 16 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 Tbilisi: soil, season and weather

Nights then average below 0 °C in December–February; the coldest, January, averages -2.6 °C.

Planting16 October – end of December
First autumn frost15 November
Coldest nightsJanuary, -2.6 °C
Soil back at 1 °C in spring14 January
Daylight11:06 on 16 October
Daylight at the winter solstice9:09

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

Hyacinth in Tbilisi: 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 Tbilisi the average daily temperature stays at 10 °C or lower for about 23 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 Tbilisi, Vanadzor is 51 days earlier and Kutaisi 35 days later.

CityDistanceDateDifference
Vanadzor104 km26 August – 29 October51 days earlier
Gyumri130 km20 September – 23 November26 days earlier
Vladikavkaz147 km22 September – 23 November24 days earlier
Yerevan173 km3 October – 4 December13 days earlier
Ganja175 km11 November – end of December26 days later
Kutaisi183 km20 November – end of December35 days later

Where to buy hyacinth for planting in Tbilisi

Planting stock goes into the ground from 16 October to the end of December; buy it before that. Within 15 km of Tbilisi OpenStreetMap lists 13 garden centres, 7 farm-supply shops, 1 plant nursery, 23 markets and 4 farm shops (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Tbilisi?

In Tbilisi, hyacinth: plant from 16 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.

When is the last spring frost in Tbilisi?

Last spring frost around 2 April, first autumn frost around 15 November.

Other crops in Tbilisi, with their dates