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Plant Eggplant in Zone 5a

Seed-starting, transplant & harvest dates for USDA Zone 5a

Start indoors
Mar 5
Transplant
May 14
Harvest (~85d)
Aug 7

Zone 5a averages 156 frost-free days, running from a last spring frost around April 30 to a first fall frost around October 3. Eggplant needs roughly 85 days from planting out to first harvest, so it uses about 54 percent of that window. Eggplant is a tender crop, which is what decides where in the window it belongs.

Because eggplant needs a head start, sow seed indoors around Mar 5, about 8 weeks ahead of the Zone 5a last frost. Transplants go out around May 14. Starting earlier than that in Zone 5a usually backfires: plants outgrow their cells and stall when they finally hit cold soil.

Fall planting: eggplant in Zone 5a

Eggplant has no useful fall window in Zone 5a. Eggplant needs a long warm run to finish, so a second planting is realistic only in zone 9 and warmer.

Eggplant needs a long warm run to finish, so a second planting is realistic only in zone 9 and warmer.

Fall dates are counted backward from the Zone 5a average first frost, not forward from a sowing date. See the fall planting calendar by zone for the full method.

Spring vs fall eggplant in Zone 5a

Planting Sow or start In the ground Harvest
Spring Mar 5 May 14 Aug 7
Fall — — —
Last spring frost
Apr 30
First fall frost
Oct 3
Growing season
156 days

Eggplant in nearby zones

Further reading on eggplant

Other crops in Zone 5a

Frequently asked questions

When should I start eggplant in Zone 5a?

Start eggplant seeds indoors around Mar 5 (Zone 5a).

Can I direct sow eggplant in Zone 5a?

Eggplant is best started indoors and transplanted in Zone 5a rather than direct sown.

Can I plant eggplant in the fall in Zone 5a?

Eggplant has no useful fall window in Zone 5a. Eggplant needs a long warm run to finish, so a second planting is realistic only in zone 9 and warmer.

Will eggplant survive frost in Zone 5a?

No. Eggplant is a tender crop and a single light frost ends it, so every Zone 5a planting has to finish before the average first frost.