Greenly Garden

When to plant hyacinths in Fresno: by 5 November

In Fresno, 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 Gibson Farm Market (farm shop, 8 km) and Green Source Genetics - Clones in Fresno (garden centre, 9 km); addresses and opening hours are below.

Hyacinth in Fresno: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 4.5 °C.

Plantingby 5 November
First autumn frost5 December
Coldest nightsJanuary, 4.5 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:32 on 5 November
Daylight at the winter solstice9:39

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

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

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

In Fresno the average daily temperature stays at 10 °C or lower for about 6 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 Fresno, Carson City is 44 days earlier and Santa Barbara 10 days later.

CityDistanceDateDifference
Stockton190 kmby 3 November2 days earlier
Sacramento254 kmby 11 November6 days later
Santa Barbara259 kmby 15 November10 days later
Carson City268 km22 September – end of December44 days earlier
Reno309 km28 September – end of December38 days earlier
Las Vegas419 kmby 12 November7 days later

Where to buy hyacinth for planting in Fresno

Planting stock goes into the ground by 5 November; buy it before that. Within 15 km of Fresno OpenStreetMap lists 4 garden centres, 1 farm-supply shop and 1 farm shop (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Fresno?

In Fresno, 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 Fresno?

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

Other crops in Fresno, with their dates