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When to plant hyacinths in Montgomery: by 30 October

In Montgomery, hyacinth: plant by 30 October. The winter here is too mild for our late-planting rule, so we give no later limit.

Hyacinth in Montgomery: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 4.4 °C.

Plantingby 30 October
First autumn frost29 November
Coldest nightsJanuary, 4.4 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:57 on 30 October
Daylight at the winter solstice10:01

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

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

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

In Montgomery the average daily temperature stays at 10 °C or lower for about 2 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 Montgomery, Chattanooga is 17 days earlier and Macon 2 days later.

CityDistanceDateDifference
Birmingham (United States)136 kmby 27 October3 days earlier
Atlanta235 kmby 23 October7 days earlier
Macon253 kmby 1 November2 days later
Huntsville259 kmby 15 October15 days earlier
Chattanooga316 kmby 13 October17 days earlier
Jackson365 kmby 29 October1 day earlier

Questions

When to plant hyacinths in Montgomery?

In Montgomery, hyacinth: plant by 30 October. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in Montgomery?

Last spring frost around 1 March, first autumn frost around 29 November.

Other crops in Montgomery, with their dates