GreenlyWhen to plant peas in Harrisburg: 20 March – 29 August
In Harrisburg, peas: sow straight into the bed from 20 March to 29 August. For seeds, the places nearby include Within You Farm (farm shop, 15 km); addresses and opening hours are below.
Your location is not available. Pick your city from the list below.
Peas in Harrisburg: soil, season and weather
Peas tolerates light frost, so it goes in three weeks before the last frost (10 April); the top 7 cm of soil has reached its minimum of 4 °C by then (around 3 February).
| Last spring frost | 10 April |
|---|---|
| Top 7 cm of soil at 4 °C | 3 February, 66 days before the last frost |
| First autumn frost | 11 November, 236 days after the start |
| Days in the bed to the first harvest (card) | 74 |
| First harvest, if planted in this window | 2 June – 11 November |
| Days left for picking | 162 |
| Daylight | 12:07 on 20 March |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, November, has 7 rainy days |
Peas in Harrisburg: care after planting
Planted on 20 March: in the first weeks water every 6 days.
Pests and diseases of peas to watch for:
Weather in Harrisburg during the peas season
About 900 mm of rain falls in the season; November is the driest month (70 mm) and July the wettest (126 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| March | 11.9 | 1 | 86 | 11 | 11:54 |
| April | 17.5 | 6 | 100 | 12 | 13:15 |
| May | 22.2 | 11.4 | 121 | 15 | 14:24 |
| June | 27.6 | 16.5 | 97 | 13 | 15:02 |
| July | 31 | 20.1 | 126 | 13 | 14:47 |
| August | 29 | 19 | 110 | 12 | 13:48 |
| September | 25.4 | 15.7 | 111 | 10 | 12:30 |
| October | 19.3 | 9.7 | 79 | 9 | 11:11 |
| November | 11.8 | 2.9 | 70 | 7 | 9:58 |
ERA5 2016–2025, Open-Meteo
Peas in nearby cities
Around Harrisburg, Annapolis is 12 days earlier and Allentown 5 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Hagerstown | 103 km | 14 March – 29 August | 6 days earlier |
| Baltimore | 111 km | 10 March – 9 September | 10 days earlier |
| Allentown | 124 km | 25 March – 21 August | 5 days later |
| Annapolis | 148 km | 8 March – 6 September | 12 days earlier |
| Philadelphia | 150 km | 13 March – 29 August | 7 days earlier |
| Washington, D.C. | 152 km | 10 March – 3 September | 10 days earlier |
Where to buy peas seeds in Harrisburg
Seeds go straight into the bed from 20 March to 29 August; buy them before that. Within 15 km of Harrisburg OpenStreetMap lists 4 garden centres, 4 markets and 3 farm shops (collected 28 October 2026).
- Within You Farm — farm shop
Fisher Road 1849, 17055 Mechanicsburg · 15 km - Broad Street Market — market
1 km · broadstreetmarket.org - Brick Building — market
1 km - Stone Building — market
1 km
Places: © OpenStreetMap contributors, ODbL.
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.
- How to grow peas
- All frost dates and weather of Harrisburg
- Shops and markets: Harrisburg
- Selling a surplus in the United States
- When to plant peas in the United States
- Harrisburg: #459 of 801 by frost-free season
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant peas in Harrisburg?
In Harrisburg, peas: sow straight into the bed from 20 March to 29 August.
When is the last spring frost in Harrisburg?
Last spring frost around 10 April, first autumn frost around 11 November.
