GreenlyWhen to plant bell peppers in San Jose: from 25 April
In San Jose, bell pepper: sow for seedlings from 3 February; plant into a greenhouse from 4 April; plant out into open ground from 25 April. There is no autumn frost here, so the frost dates set no end to the window. For plants and seeds, the places nearby include Central Wholesale Nursery (plant nursery, 5 km) and Sunny Tools (farm supply, 5 km); addresses and opening hours are below.
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Bell Pepper in San Jose: soil, season and weather
In San Jose the soil, not frost, sets the date: the last frost is over around 24 February, but the top 7 cm of soil reaches 18 °C — the minimum on the bell pepper card — only around 25 April, 60 days later. San Jose has no autumn frost in the median year, so frost does not end the season.
| Last spring frost | 24 February |
|---|---|
| Top 7 cm of soil at 18 °C | 25 April, 60 days after the last frost |
| Into an unheated greenhouse | from 4 April; April outside: 8.6 °C at night, 20.8 °C by day; card 15–30 °C |
| Days in the bed to the first harvest (card) | 70 |
| First harvest, if planted in this window | from 4 July |
| Daylight | 11:09 on 24 February, 13:30 on 25 April |
| Watering outdoors when fruiting (card) | every 4 days; the driest month, June, has 0 rainy days |
The same dates in San Jose hold for Cucumber, Eggplant, Zucchini, Pumpkin and Watermelon.
Bell Pepper in San Jose: care after planting
Planted on 25 April: in the first weeks water every 5 days.
Feeding, by the card’s schedule from that day:
- 25 April — feed: balanced (NPK)
- 23 May — feed: nitrogen
Pests and diseases of bell pepper to watch for:
- Bacterial spot
- Bacterial wilt (brown rot of potato)
- Colorado Potato Beetle
- Early Blight
- Tomato hornworm
- Tomato russet mite
Dates count from the first planting day of the window above; a later planting moves them by as many days.
Weather in San Jose during the bell pepper season
Days average above the bell pepper card's 15–30 °C in July (30.2 °C) and August (30.1 °C). Nights average below 15 °C in April–July and September (8.6–14.5 °C).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| April | 20.8 | 8.6 | 27 | 4 | 13:08 |
| May | 24.4 | 10.8 | 16 | 3 | 14:10 |
| June | 28.7 | 13.3 | 0 | 0 | 14:43 |
| July | 30.2 | 14.5 | 0 | 0 | 14:30 |
| August | 30.1 | 15 | 1 | 0 | 13:38 |
| September | 28.7 | 14.5 | 5 | 1 | 12:28 |
ERA5 2016–2025, Open-Meteo
Bell Pepper in nearby cities
Around San Jose, Bakersfield is 23 days earlier and Carson City 18 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Stockton | 87 km | 24 April – 13 August | 1 day earlier |
| Sacramento | 142 km | 24 April – 21 August | 1 day earlier |
| Fresno | 199 km | 10 April – 15 August | 15 days earlier |
| Carson City | 274 km | 13 May – 2 July | 18 days later |
| Reno | 303 km | 29 April – 8 July | 4 days later |
| Bakersfield | 338 km | 2 April – 24 August | 23 days earlier |
Where to buy bell pepper plants and seeds near San Jose
Buy plants ready to set out from 25 April (from 4 April for an unheated greenhouse); seed for raising your own is sown from 3 February. Within 15 km of San Jose OpenStreetMap lists 11 garden centres, 1 farm-supply shop, 1 plant nursery, 16 markets and 1 farm shop (collected 20 October 2026).
- Central Wholesale Nursery — plant nursery
McKinley Avenue 1670, 95126 San Jose · Mon–Fri 07:30–16:30; Sat 07:00–15:00 · 5 km - Sunny Tools — farm supply
Parrott Street 580, 95112 San Jose · 5 km - Paseo Market — market
South 9th Street 211, 95112 San Jose · Mon–Sat 08:00–18:00 · 1 km · new.dineoncampus.com - Berryessa Farmers' Market — market
Piedmont Road 1376, 95132 San Jose · Apr 01–Nov 18 Sat 09:00–13:00 · 8 km · pcfma.org
Places: © OpenStreetMap contributors, ODbL.
- How to grow bell pepper
- All frost dates and weather of San Jose
- Shops and markets: San Jose
- Selling a surplus in the United States
- When to plant bell peppers in the United States
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant bell peppers in San Jose?
In San Jose, bell pepper: sow for seedlings from 3 February; plant into a greenhouse from 4 April; plant out into open ground from 25 April. There is no autumn frost here, so the frost dates set no end to the window.
When to sow bell peppers for seedlings in San Jose?
Sow for seedlings from 3 February.
