When to plant tomatoes in Medford: 30 May – 30 June

In Medford, tomato: sow for seedlings from 18 March to 9 May; plant into a greenhouse from 9 May to 30 June; plant out into open ground from 30 May to 30 June. For plants and seeds, the places nearby include Grange Co-op (garden centre, 3 km) and Walmart Garden Center (garden centre, 6 km); addresses and opening hours are below.

Tomato in Medford: soil, season and weather

In Medford the soil, not frost, sets the date: the last frost is over around 30 April, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 30 May, 30 days later.

Last spring frost	30 April
Top 7 cm of soil at 15 °C	30 May, 30 days after the last frost
Into an unheated greenhouse	9 May – 30 June; May outside: 5.6 °C at night, 20.5 °C by day; card 16–27 °C
First autumn frost	20 October, 143 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	8 August – 8 September
Days left for picking	73
Daylight	13:01 on 8 April, 15:01 on 30 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 1 rainy day

Tomato in Medford: care after planting

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

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

30 May — feed: balanced (NPK)
27 June — feed: nitrogen

Pests and diseases of tomato 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 Medford during the tomato season

Days average above the tomato card's 16–27 °C in July (31.1 °C) and August (31.2 °C). Nights average below 16 °C in every month of the season, from 4.8 °C to 13.1 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	20.5	5.6	58	8	14:35
June	25.6	9.2	28	4	15:16
July	31.1	12.8	3	1	15:00
August	31.2	13.1	7	2	13:56
September	26.2	9.6	38	5	12:32
October	18.9	4.8	71	8	11:07

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

All the nearest cities on our list plant tomato earlier than Medford; the closest date is in Eugene, 8 days earlier.

City	Distance	Date	Difference
Eugene	190 km	22 May – 9 July	8 days earlier
Redding	201 km	14 April – 21 August	46 days earlier
Salem	287 km	14 May – 28 July	16 days earlier
Portland	352 km	15 May – 2 August	15 days earlier
Reno	407 km	23 April – 8 July	37 days earlier
Sacramento	436 km	31 March – 21 August	60 days earlier

Where to buy tomato plants and seeds near Medford

Buy plants ready to set out from 30 May to 30 June (from 9 May to 30 June for an unheated greenhouse); seed for raising your own is sown from 18 March to 9 May. Within 15 km of Medford OpenStreetMap lists 13 garden centres, 2 farm-supply shops, 3 markets and 10 farm shops (collected 29 October 2026).

Grange Co-op (South Medford) — garden centre
South Pacific Highway 2531, 97501 Medford · Tue–Sat 08:00–18:00; Sun 09:00–17:00 · 7 km · grangecoop.com
Grange Co-op — garden centre
South Front Street 225, 97502 Central Point · Mon–Sat 08:00–18:00; Sun 09:00–17:00 · 3 km · grangecoop.com
Walmart Garden Center — garden centre
Center Drive 1360, 97501 Medford · Mon–Sun 06:00–24:00 · 6 km · walmart.com
Southern Oregon Nursery — garden centre
South Pacific Highway 2922, 97501 Medford · Tue–Sat 08:30–17:00 · 8 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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