When to plant eggplants in Spokane: 22 May – 25 June

In Spokane, eggplant: sow for seedlings from 2 March to 26 April; plant into a greenhouse from 1 May to 25 June; plant out into open ground from 22 May to 25 June. For plants and seeds, the places nearby include St John Hardware & Implement (farm supply, 10 km) and Landmark Turf & Native Seed (farm supply, 12 km); addresses and opening hours are below.

Eggplant in Spokane: soil, season and weather

In Spokane the soil, not frost, sets the date: the last frost is over around 21 April, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 22 May, 31 days later.

Last spring frost	21 April
Top 7 cm of soil at 18 °C	22 May, 31 days after the last frost
Into an unheated greenhouse	1 May – 25 June; May outside: 7.8 °C at night, 21.2 °C by day; card 21–29 °C
First autumn frost	15 October, 146 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	31 July – 3 September
Days left for picking	76
Daylight	12:18 on 23 March, 15:24 on 22 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 2 rainy days

The same dates in Spokane hold for Cucumber, Bell Pepper, Zucchini, Pumpkin and Watermelon.

Eggplant in Spokane: care after planting

Planted on 22 May: in the first weeks water every 4 days.

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

22 May — feed: balanced (NPK)
19 June — feed: nitrogen

Pests and diseases of eggplant 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 Spokane during the eggplant season

Days average above the eggplant card's 21–29 °C in July (31.3 °C) and August (30.9 °C). Months that stay below 21 °C even by day on average: October (15.3 °C). Nights average below 21 °C in every month of the season, from 3.8 °C to 15.9 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	21.2	7.8	50	9	15:07
June	25.5	11.7	30	6	15:58
July	31.3	15.9	6	2	15:38
August	30.9	15.5	14	3	14:19
September	24.8	10.8	20	4	12:38
October	15.3	3.8	56	9	10:55

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

All the nearest cities on our list plant eggplant later than Spokane; the closest date is in Kelowna, 11 days later.

City	Distance	Date	Difference
Missoula	271 km	30 June – 28 July	39 days later
Kelowna	289 km	2 June – 11 July	11 days later
Seattle	367 km	21 June – 4 August	30 days later
Olympia	418 km	26 June – 26 July	35 days later
Helena	425 km	3 July – 25 July	42 days later
Calgary	449 km	18 June – 23 July	27 days later

Where to buy eggplant plants and seeds near Spokane

Buy plants ready to set out from 22 May to 25 June (from 1 May to 25 June for an unheated greenhouse); seed for raising your own is sown from 2 March to 26 April. Within 15 km of Spokane OpenStreetMap lists 13 garden centres, 6 farm-supply shops, 4 plant nurseries and 1 market (collected 20 October 2026).

St John Hardware & Implement — farm supply
South Hayford Road 904, Spokane · 10 km
Landmark Turf & Native Seed — farm supply
South Hayford Road 4908, Spokane · 12 km
Scale House Market — market
East 8th Avenue 4422, 99212 Spokane Valley · 7 km · thescalehousemarket.com
Judy's Enchanted Garden — garden centre
3 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.

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