Greenly Garden

Last and first frost dates in Richmond

United States

In Richmond the last spring frost usually comes around 26 March and the first autumn frost around 16 November, which leaves about 235 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 7 April to 27 July.

Last spring frostaround 26 March
First autumn frostaround 16 November
Frost-free days235 days
Hardiness zone (USDA-equivalent)official USDA map: 7b

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When is the last frost in Richmond?

The last frost in Richmond usually comes around 26 March: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 5 March, while corn waits until 2 April. The first autumn frost follows around 16 November, about 235 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha31 January – 8 August12 March – 17 September2 April – 17 September
Ageratumfrom 20 January—from 7 April
Arugula——sow 5 March – 12 October
Basil2 March – 14 September9 April – 22 October30 April – 22 October
Beet——sow 5 March – 17 September
Bell Pepper8 February – 28 May9 April – 27 July30 April – 27 July
Black-eyed Susanfrom 9 January—from 2 April
Bok Choy5 February – 25 September12 March – 30 October2 April – 30 October
Borage——sow 2 April – 22 September
Broad bean——sow 5 March – 8 August
Broccoli——sow 5 March – 1 August
Brussels Sprouts29 December – 29 June12 February – 13 August5 March – 13 August
Busy Lizziefrom 8 January—from 2 April
Cabbage——sow 5 March – 9 July
Calendula——sow from 5 March
Carrot——sow 5 March – 24 August
Cauliflower1 January – 1 August12 February – 12 September5 March – 12 September
Celeriac25 December – 29 May12 March – 14 August2 April – 14 August
Celery25 December – 8 June12 March – 24 August2 April – 24 August
Celosiafrom 8 Februaryfrom 25 Marchfrom 15 April
Chamomile——sow 5 March – 12 September
Chayote14 December – 22 May12 March – 18 August2 April – 18 August
Chickpea——sow 5 March – 29 July
Chicory18 January – 23 August—5 March – 17 September
Chili Pepper8 February – 4 July9 April – 2 September30 April – 2 September
China asterfrom 16 Februaryfrom 9 Aprilfrom 30 April
Chives——sow 5 March – 3 September
Cilantro——sow 5 March – 13 September
Corn——sow 2 April – 29 July
Corn poppy——sow from 5 March
Cosmosfrom 8 Februaryfrom 25 Marchfrom 15 April
Cucumber12 March – 4 August9 April – 1 September30 April – 1 September
Daikon——sow 5 March – 10 September
Delphiniumfrom 15 December—from 5 March
Dill——sow 5 March – 23 September
Edging lobeliafrom 8 January—from 2 April
Eggplant8 February – 28 May9 April – 27 July30 April – 27 July
Florence fennel26 January – 8 August12 March – 22 September2 April – 22 September
Foxglovefrom 27 November—from 5 March
Garden sorrel——sow 5 March – 11 September
Green Beans——sow 15 April – 6 August
Hollyhock——sow from 5 March
Hyssop——sow 5 March – 4 August
Kale——sow 5 March – 5 September
Kiwano13 February – 11 August17 March – 12 September7 April – 12 September
Kohlrabi——sow 5 March – 15 September
Leek4 December – 20 May12 February – 29 July5 March – 29 July
Lemon balm——sow 5 March – 7 September
Lettuce——sow 5 March – 20 September
Lisianthusfrom 17 Novemberfrom 12 Februaryfrom 5 March
Lovage——sow from 5 March
Luffa26 February – 5 June9 April – 17 July30 April – 17 July
Marigoldfrom 29 Januaryfrom 12 Marchfrom 2 April
Marjoram8 February – 23 August—30 April – 22 October
Melon12 March – 22 July9 April – 19 August30 April – 19 August
Microgreens——sow 15 April – 2 November
Moringa20 February – 28 August16 April – 22 October7 May – 22 October
Moss rosefrom 15 January—from 2 April
Mustard greens——sow 5 March – 2 October
Napa cabbage7 February – 2 September12 March – 5 October2 April – 5 October
Nasturtiumfrom 2 Februaryfrom 12 Marchfrom 2 April
Okra26 February – 16 August9 April – 27 September30 April – 27 September
Oregano14 December – 13 August12 February – 12 October5 March – 12 October
Pansyfrom 18 Decemberfrom 12 Februaryfrom 5 March
Parsley——sow 5 March – 1 September
Parsnip——sow 5 March – 21 July
Peanut3 March – 12 July9 April – 18 August30 April – 18 August
Peas——sow 5 March – 3 September
Petuniafrom 5 Februaryfrom 9 Aprilfrom 30 April
Physalis31 January – 9 July17 March – 23 August7 April – 23 August
Pumpkin26 February – 10 June9 April – 22 July30 April – 22 July
Purple coneflowerfrom 12 December—from 5 March
Radish——sow 5 March – 17 October
Sage25 December – 9 August12 February – 27 September5 March – 27 September
Scarlet sagefrom 24 January—from 7 April
Snapdragonfrom 9 Decemberfrom 12 Februaryfrom 5 March
Soybean——sow 30 April – 28 August
Spinach——sow 5 March – 22 September
Stevia27 January – 30 June17 March – 18 August7 April – 18 August
Stock——sow from 5 March
Sunflower——sow from 15 April
Sweet alyssum——sow from 5 March
Sweet Corn18 February – 23 August12 March – 14 September2 April – 14 September
Sweet peafrom 1 Januaryfrom 12 Februaryfrom 5 March
Sweet William——sow from 5 March
Swiss Chard——sow 5 March – 17 September
Thyme——sow 5 March – 29 July
Tomato24 January – 5 June17 March – 27 July7 April – 27 July
Turnip——sow 5 March – 19 September
Watercress——sow 5 March – 30 September
Watermelon12 March – 10 July9 April – 7 August30 April – 7 August
Zinniafrom 12 Marchfrom 16 Aprilfrom 7 May
Zucchini19 March – 9 August9 April – 30 August30 April – 30 August

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

What planting zone is Richmond?

The official USDA map (2023, 1991–2020 data) puts the centre of Richmond (ZIP 23220) in zone 7b. Zone 7b stands for an average coldest night of 5 to 10 °F (-15 to -12.2 °C), so perennials hardy to zone 7b or a colder zone should come through a typical winter here.

Check the official USDA map for Richmond: USDA Plant Hardiness Zone Map.

When the soil warms up in Richmond

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 28 days before the last spring frost and 15 °C 12 days after it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °C26 February28 days earlier
15 °C7 April12 days later
18 °C30 April35 days later

Frost dates near Richmond

Of the nearest cities on our list, the last spring frost ends earliest in Virginia Beach (8 March) and latest in Roanoke (3 April).

CityDistanceLast spring frostFirst autumn frost
Virginia Beach152 km8 March1 December
Washington, D.C.156 km31 March16 November
Annapolis179 km29 March19 November
Baltimore207 km31 March22 November
Roanoke221 km3 April11 November

Seeds, seedlings and markets in Richmond

Within 15 km of Richmond OpenStreetMap lists 6 garden centres, 4 farm-supply shops, 2 plant nurseries, 5 markets and 2 farm shops (collected 20 October 2026). The nearest garden centre to the city centre is The Great Big Greenhouse, 14 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Richmond

Frosts in Richmond usually come from about 16 November to about 26 March. These plants have indoor care in their Greenly cards and are harvested quickly, so they can be sown on a windowsill in winter.

Weather in Richmond by month

Average weather in Richmond over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: April–October (21.5–32.6 °C). Months that average 30 °C or more by day: July (32.6 °C) and August (30.5 °C). Nights average below 0 °C in January (-0.1 °C). About 1132 mm of rain falls in a year, on 120 days; May is the wettest month (115 mm) and November the driest (68 mm).

MonthDay, °CNight, °CRain, mmRainy days
January8.8-0.18610
February12.32.19811
March16.158910
April21.59.7869
May25.114.711512
June29.919.19610
July32.622.210813
August30.52110512
September27.518.11049
October21.712.2877
November15.55.7688
December10.81.7909

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

CropWhen to plant
Bearded Irisby 17 October
Crocusby 17 October
Daffodilby 17 October
Garlic17 October – end of December
Grape hyacinthby 17 October
Helleboreby 17 October
Hyacinthby 17 October
Lilyby 17 October
Ornamental onionby 17 October
Peonyby 17 October
Saffronby 17 October
Snowdropby 17 October
Tulipby 17 October
Wild garlicby 17 October

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).