When to plant cucumbers in Eugene: 19 June – 14 August

In Eugene, cucumber: sow for seedlings from 1 May to 17 July; plant into a greenhouse from 29 May to 14 August; plant out into open ground from 19 June to 14 August. For plants and seeds, the places nearby include Gray's Garden Center (garden centre, 2 km) and Down To Earth Home and Garden (garden centre, 2 km); addresses and opening hours are below.

Cucumber 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 cucumber card — only around 19 June, 65 days later.

Last spring frost	15 April
Top 7 cm of soil at 18 °C	19 June, 65 days after the last frost
Into an unheated greenhouse	29 May – 14 August; May outside: 7.1 °C at night, 20.1 °C by day; card 18–25 °C
First autumn frost	29 October, 132 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	23 July – 17 September
Days left for picking	98
Daylight	14:59 on 22 May, 15:30 on 19 June
Watering outdoors when fruiting (card)	every 2 days; the driest month, July, has 1 rainy day

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

Cucumber in Eugene: care after planting

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

Feeding, by the card’s schedule from that day:

26 June — feed: nitrogen

Pests and diseases of cucumber to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Eugene during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, August, averages 29.9 °C. Nights average below 18 °C in every month of the season, from 6.4 °C to 12.7 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	24.1	9.9	54	7	15:28
July	29.2	12.2	5	1	15:11
August	29.9	12.7	8	2	14:03
September	25.1	10.2	64	7	12:34
October	18	6.4	132	12	11:04

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

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

City	Distance	Date	Difference
Salem	98 km	6 June – 2 September	13 days earlier
Portland	166 km	17 June – 7 September	2 days earlier
Medford	190 km	19 June – 5 August	same day
Olympia	332 km	26 June – 31 August	7 days later
Redding	390 km	28 April – 26 September	52 days earlier
Seattle	399 km	21 June – 9 September	2 days later

Where to buy cucumber plants and seeds near Eugene

Buy plants ready to set out from 19 June to 14 August (from 29 May to 14 August for an unheated greenhouse); seed for raising your own is sown from 1 May to 17 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).

Gray's Garden Center — garden centre
West 6th Avenue 737, 97402 Eugene · 2 km
Down To Earth Home and Garden — garden centre
Olive Street 532, 97403 Eugene · 2 km
Rexius — garden centre
Bailey Hill Road 1275, 97402 Eugene · 3 km
Vital Organics Northwest — garden centre
River Avenue 453, 97404 Eugene · 4 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