When to plant eggplants in Annapolis: 8 May – 30 July

In Annapolis, eggplant: sow for seedlings from 16 February to 31 May; plant into a greenhouse from 17 April to 30 July; plant out into open ground from 8 May to 30 July. For plants and seeds, the places nearby include Bru-Mar Gardens LLC (garden centre, 3 km) and Garcia Patios & Landscaping (garden centre, 8 km); addresses and opening hours are below.

Eggplant in Annapolis: soil, season and weather

In Annapolis the soil, not frost, sets the date: the last frost is over around 29 March, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 8 May, 40 days later.

Last spring frost	29 March
Top 7 cm of soil at 18 °C	8 May, 40 days after the last frost
Into an unheated greenhouse	17 April – 30 July; April outside: 8.6 °C at night, 18.3 °C by day; card 21–29 °C
First autumn frost	19 November, 195 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	17 July – 8 October
Days left for picking	125
Daylight	11:39 on 9 March, 14:04 on 8 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 8 rainy days

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

Eggplant in Annapolis: care after planting

Planted on 8 May: in the first weeks water every 4 days.

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

8 May — feed: balanced (NPK)
5 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 Annapolis during the eggplant season

Days average above the eggplant card's 21–29 °C in July (30.1 °C). Months that stay below 21 °C even by day on average: October (20.1 °C) and November (13.5 °C). Nights average below 21 °C in May, June and August–November (5.5–20.8 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	22.4	13.7	156	15	14:17
June	27.6	18.6	137	13	14:53
July	30.1	21.9	200	16	14:39
August	28.5	20.8	158	14	13:43
September	25.5	18	145	12	12:29
October	20.1	12	106	9	11:14
November	13.5	5.5	83	8	10:04

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

Around Annapolis, Washington, D.C. is 4 days earlier and Harrisburg 17 days later.

City	Distance	Date	Difference
Baltimore	37 km	5 May – 2 August	3 days earlier
Washington, D.C.	47 km	4 May – 27 July	4 days earlier
Dover	87 km	11 May – 6 August	3 days later
Hagerstown	129 km	23 May – 22 July	15 days later
Harrisburg	148 km	25 May – 22 July	17 days later
Philadelphia	158 km	14 May – 22 July	6 days later

Where to buy eggplant plants and seeds near Annapolis

Buy plants ready to set out from 8 May to 30 July (from 17 April to 30 July for an unheated greenhouse); seed for raising your own is sown from 16 February to 31 May. Within 15 km of Annapolis OpenStreetMap lists 6 garden centres and 1 farm shop (collected 28 October 2026).

Riva Gardens — garden centre
8 km
Anne Arundel County Farmer's Market — farm shop
5 km
Bru-Mar Gardens LLC — garden centre
Bay Ridge Road 1009, 21403 Annapolis · Mon–Sat 09:00–18:00; Sun 09:00–17:00 · 3 km · brumargardens.com
Garcia Patios & Landscaping — garden centre
Central Avenue 565, 21037 Edgewater · Mon–Fri 09:00–17:00 · 8 km · garciapatiosandlandscaping.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.

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