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When to plant daffodils in Knoxville: by 13 October

In Knoxville, daffodil: plant by 13 October. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include Stanley's Greenhouse (plant nursery, 2 km) and Plush Moon Terrarium (garden centre, 2 km); addresses and opening hours are below.

Daffodil in Knoxville: soil, season and weather

Nights then average below 0 °C in January; the coldest, January, averages -0.5 °C.

Plantingby 13 October
First autumn frost12 November
Coldest nightsJanuary, -0.5 °C
Soil back at 7 °C in spring25 January
Daylight11:24 on 13 October
Daylight at the winter solstice9:43

The same dates in Knoxville hold for Garlic, Tulip, Crocus and Hyacinth.

Daffodil in Knoxville: depth, winter cold, pests and pets

Plant daffodils three times the bulb’s height deep (RHS): about 13–15 cm for large bulbs, 15–20 cm apart (University of Georgia Extension). The RHS advises planting them early in autumn, ideally in September in the UK, so do not leave them late: aim for the start of the window, 13 October.

In Knoxville the average daily temperature stays at 10 °C or lower for about 15 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 15–17 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Daffodils are long-lived: clumps slowly expand over the years (RHS). Leave the leaves for at least eight weeks after flowering — they feed next year’s flowers (University of Georgia Extension).

Squirrels avoid daffodils, so they can be planted among tulips to reduce losses (RHS). Daffodils are toxic to dogs, cats and horses; the bulbs are the most poisonous part, and a large amount can cause convulsions and heart rhythm problems (ASPCA).

Sources: RHS, University of Georgia Extension, Wisconsin Horticulture Extension, ASPCA.

Daffodil in nearby cities

Around Knoxville, Asheville is 10 days earlier and Atlanta 10 days later.

CityDistanceDateDifference
Asheville130 km3 October – end of December10 days earlier
Chattanooga156 kmby 13 Octobersame day
Lexington231 km8 October – end of December5 days earlier
Atlanta249 kmby 23 October10 days later
Nashville258 kmby 15 October2 days later
Frankfort263 km4 October – end of December9 days earlier

Where to buy daffodil for planting in Knoxville

Planting stock goes into the ground by 13 October; buy it before that. Within 15 km of Knoxville OpenStreetMap lists 7 garden centres, 1 plant nursery and 5 markets (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant daffodils in Knoxville?

In Knoxville, daffodil: plant by 13 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 Knoxville?

Last spring frost around 29 March, first autumn frost around 12 November.

Other crops in Knoxville, with their dates