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When to plant hyacinths in Dallas: by 5 November

In Dallas, hyacinth: plant by 5 November. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include Ruibal's (garden centre, 1 km) and Texas Palm Trees and Irrigation (plant nursery, 9 km); addresses and opening hours are below.

Hyacinth in Dallas: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 3.8 °C.

Plantingby 5 November
First autumn frost5 December
Coldest nightsJanuary, 3.8 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:45 on 5 November
Daylight at the winter solstice9:59

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

Hyacinth in Dallas: depth, winter cold, pests and pets

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

In Dallas the average daily temperature stays at 10 °C or lower for about 4 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. That is less than the bulbs need, and without more cold they may not flower properly. Where winters are not cold enough for long enough, LSU AgCenter keeps tulip and hyacinth bulbs in the refrigerator for at least six to eight weeks before planting, and plants them only once the soil has cooled: warm soil can cancel the chilling. Keep fruit out of that refrigerator — ripening fruit gives off ethylene, which harms the flowers (Wisconsin Horticulture Extension).

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, LSU AgCenter, ASPCA.

Hyacinth in nearby cities

Around Dallas, Oklahoma City is 25 days earlier and Shreveport 4 days later.

CityDistanceDateDifference
Fort Worth49 kmby 31 October5 days earlier
Lawton251 kmby 12 October24 days earlier
Shreveport284 kmby 9 November4 days later
Oklahoma City306 kmby 11 October25 days earlier
Fort Smith365 kmby 19 October17 days earlier
Tulsa382 kmby 18 October18 days earlier

Where to buy hyacinth for planting in Dallas

Planting stock goes into the ground by 5 November; buy it before that. Within 15 km of Dallas OpenStreetMap lists 10 garden centres, 1 farm-supply shop, 2 plant nurseries and 4 markets (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Dallas?

In Dallas, hyacinth: plant by 5 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 Dallas?

Last spring frost around 19 February, first autumn frost around 5 December.

Other crops in Dallas, with their dates