When to plant zucchini in La Rioja: 30 August – 28 March

In La Rioja, zucchini: sow for seedlings from 19 July to 7 March; plant into a greenhouse from 9 August to 28 March; plant out into open ground from 30 August to 28 March.

Zucchini in La Rioja: soil, season and weather

In La Rioja the soil, not frost, sets the date: the last frost is over around 17 July, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 30 August, 44 days later.

Last spring frost	17 July
Top 7 cm of soil at 18 °C	30 August, 44 days after the last frost
First autumn frost	14 June, 289 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	5 October – 3 May
Days left for picking	253
Daylight	10:54 on 9 August, 11:26 on 30 August
Watering outdoors when fruiting (card)	every 3 days; the driest month, August, has 1 rainy day

The same dates in La Rioja hold for Cucumber, Bell Pepper, Eggplant, Pumpkin and Watermelon.

Zucchini in La Rioja: care after planting

Planted on 30 August: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in La Rioja during the zucchini season

About 522 mm of rain falls in the season; August is the driest month (4 mm) and January the wettest (130 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
August	22.3	8.7	4	1	11:03
September	26.7	12.3	9	1	11:53
October	29.6	15.8	39	4	12:46
November	33.2	19.6	39	5	13:35
December	34.4	21.5	77	7	14:01
January	34.7	22.7	130	9	13:49
February	32.8	21.8	74	9	13:07
March	30.1	19.6	76	7	12:18
April	25.4	15.6	44	6	11:24
May	20.6	11.1	22	4	10:40
June	17.2	7.1	8	2	10:16

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

1 of the nearest cities share La Rioja's date.

City	Distance	Date	Difference
San Fernando del Valle de Catamarca	148 km	30 August – 11 April	same day
San Juan	286 km	18 September – 2 April	19 days later
San Miguel de Tucumán	331 km	from 15 September	16 days later
Córdoba	341 km	1 October – 28 March	32 days later
Copiapó	408 km	8 September – 6 April	9 days later
Mendoza	430 km	19 September – 30 March	20 days later

Where to buy zucchini plants and seeds near La Rioja

Buy plants ready to set out from 30 August to 28 March (from 9 August to 28 March for an unheated greenhouse); seed for raising your own is sown from 19 July to 7 March. Within 15 km of La Rioja OpenStreetMap lists 2 markets (collected 28 October 2026).

El Gato Negro — market
Lamadrid 401, 5300 La Rioja · 1 km
Boot Mini market — market
1 km

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.

Questions