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When to plant yardlong bean in Delaware

Delaware spans USDA zones 7a–7b, so the right time to plant yardlong bean shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 18 in Dover to April 25 in Milford — below are local dates for 11 cities, each computed from its own frost dates.

In Wilmingtonthe yardlong bean transplant out window (April 21–April 28) has passed for this year.
CityZoneLast frostFirst frostTransplant out
Wilmington7bApril 7November 4April 21 – April 28
Dover7bApril 4November 4April 18 – April 25
Newark7bApril 7November 2April 21 – April 28
Middletown7bApril 7November 2April 21 – April 28
Bear7bApril 7November 2April 21 – April 28
Glasgow7bApril 7November 2April 21 – April 28
Brookside7bApril 7November 2April 21 – April 28
Hockessin7aApril 7November 4April 21 – April 28

Yardlong Bean in Delaware: FAQ

When can I plant yardlong bean in Delaware?

Across Delaware, the time to transplant yardlong bean spans roughly April 18 in Dover to April 25 in Milford, each following that city's local frost dates.

Does the yardlong bean planting date vary across Delaware?

Yes. Delaware publishes 11 cities with their own frost dates, so the right yardlong bean planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.

How long does yardlong bean take to grow in Delaware?

Yardlong Bean takes about 70–90 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.

Planting reminders

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Yardlong Bean planting guide →All Delaware cities →Delaware planting calendar →
When to Plant Yardlong Bean in Delaware — Frost-Based Dates by City — BlissGarden