When to plant zucchini in Lansing: 28 May – 16 August

In Lansing, zucchini: sow for seedlings from 16 April to 26 July; plant into a greenhouse from 7 May to 16 August; plant out into open ground from 28 May to 16 August. For plants and seeds, the places nearby include Lansing Gardens (garden centre, 4 km) and Star Tree Farm (garden centre, 13 km); addresses and opening hours are below.

Zucchini in Lansing: soil, season and weather

In Lansing the soil, not frost, sets the date: the last frost is over around 28 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 28 May, 30 days later.

Last spring frost	28 April
Top 7 cm of soil at 18 °C	28 May, 30 days after the last frost
First autumn frost	2 November, 158 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	3 July – 21 September
Days left for picking	122
Daylight	14:19 on 7 May, 15:00 on 28 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 9 rainy days

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

Zucchini in Lansing: care after planting

Planted on 28 May: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Lansing during the zucchini season

About 568 mm of rain falls in the season; November is the driest month (56 mm) and October the wettest (102 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	20.9	9.7	89	13	14:37
June	26.6	15.5	78	11	15:18
July	28.3	18	86	12	15:02
August	27.2	17	83	10	13:57
September	23.8	14	74	10	12:32
October	16.6	7.9	102	11	11:07
November	8.5	1	56	9	9:47

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Lansing, Fort Wayne is 7 days earlier and Ann Arbor 1 day later.

City	Distance	Date	Difference
Ann Arbor	82 km	29 May – 19 August	1 day later
Grand Rapids	95 km	28 May – 17 August	same day
Detroit	131 km	27 May – 21 August	1 day earlier
Windsor	134 km	27 May – 21 August	1 day earlier
Toledo (United States)	145 km	24 May – 21 August	4 days earlier
Fort Wayne	187 km	21 May – 16 August	7 days earlier

Where to buy zucchini plants and seeds near Lansing

Buy plants ready to set out from 28 May to 16 August (from 7 May to 16 August for an unheated greenhouse); seed for raising your own is sown from 16 April to 26 July. Within 15 km of Lansing OpenStreetMap lists 6 garden centres, 1 plant nursery, 6 markets and 5 farm shops (collected 28 October 2026).

Urbandale Farm — farm shop
4 km
CBI Giving Tree Farm — farm shop
9 km
Lansing Gardens — garden centre
East Jolly Road 1434 · Mon–Sat 08:00–20:00; Sun 10:00–17:00 · 4 km · lansinggardensllc.com
Star Tree Farm — garden centre
Willoughby Road 1822 · 13 km · startreefarm.com

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