Greenly Garden

When to plant zucchini in Eugene: 19 June – 12 August

In Eugene, zucchini: sow for seedlings from 8 May to 22 July; plant into a greenhouse from 29 May to 12 August; plant out into open ground from 19 June to 12 August.

Zucchini in Eugene: soil, season and weather

In Eugene the soil, not frost, sets the date: the last frost is over around 15 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 19 June, 65 days later.

Last spring frost15 April
Top 7 cm of soil at 18 °C19 June, 65 days after the last frost
First autumn frost29 October, 132 days after the start
Days in the bed to the first harvest (card)36
First harvest, if planted in this window25 July – 17 September
Days left for picking96
Daylight15:11 on 29 May, 15:30 on 19 June
Watering outdoors when fruiting (card)every 3 days; the driest month, July, has 1 rainy day

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

Zucchini in Eugene: care after planting

Planted on 19 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Eugene during the zucchini season

About 263 mm of rain falls in the season; July is the driest month (5 mm) and October the wettest (132 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
June24.19.954715:28
July29.212.25115:11
August29.912.78214:03
September25.110.264712:34
October186.41321211:04

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Eugene, Redding is 52 days earlier and Olympia 7 days later.

CityDistanceDateDifference
Salem98 km6 June – 31 August13 days earlier
Portland166 km17 June – 5 September2 days earlier
Medford190 km19 June – 3 Augustsame day
Olympia332 km26 June – 29 August7 days later
Redding390 km28 April – 24 September52 days earlier
Seattle399 km21 June – 7 September2 days later

Where to buy zucchini plants and seeds near Eugene

Buy plants ready to set out from 19 June to 12 August (from 29 May to 12 August for an unheated greenhouse); seed for raising your own is sown from 8 May to 22 July. Within 15 km of Eugene OpenStreetMap lists 11 garden centres, 5 farm-supply shops, 4 plant nurseries, 8 markets and 4 farm shops (collected 29 October 2026).

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.

Questions

When to plant zucchini in Eugene?

In Eugene, zucchini: sow for seedlings from 8 May to 22 July; plant into a greenhouse from 29 May to 12 August; plant out into open ground from 19 June to 12 August.

When to sow zucchini for seedlings in Eugene?

Sow for seedlings from 8 May to 22 July.

When is the last spring frost in Eugene?

Last spring frost around 15 April, first autumn frost around 29 October.

Other crops in Eugene, with their dates