Zucchini & Summer Squash growing in Zone 13

Growing Zucchini & Summer Squash in Zone 13

When to plant and harvest zucchini & summer squash in Zone 13— based on your zone's frost dates.

ChallengingZone 13 · Zucchini & Summer SquashUpdated October 2026

Zone 13 runs warmer than zucchini & summer squash's usual range (Zones 3–11). Heat can cut the season short, so focus on the cooler shoulder months.

Zucchini & Summer Squash planting calendar for Zone 13

These months are derived from Zone 13's frost dates — last frost around None, first frost around None.

Start indoors

—

Sow outdoors

January

Transplant

—

Harvest

March

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A month-by-month Zone 13 chart with zucchini & summer squash already on it — add the rest of your garden, then print it or save it as a PDF.

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Zucchini & Summer Squash care at a glance

Very easyVery easy to grow
Sunlight
Full sun (6+ hours)
Water
1–2 inches per week, deep
Spacing
24–36 in apart
Days to maturity
45–60 days
Best zones
3–11

Growing zucchini & summer squash in Zone 13: FAQs

Can you grow zucchini & summer squash in Zone 13?+

Zone 13 runs warmer than zucchini & summer squash's usual range (Zones 3–11). Heat can cut the season short, so focus on the cooler shoulder months.

When should I plant zucchini & summer squash in Zone 13?+

In Zone 13, sow outdoors around January. Zone 13's last spring frost is typically None and its first fall frost around None, which sets the planting window.

When to harvest zucchini & summer squash in Zone 13?+

Expect to harvest zucchini & summer squash in Zone 13 around March, depending on the season and variety.

Full Zucchini & Summer Squash guide →

Complete care, problems, companions, and harvest tips.

Zone 13 overview →

Frost dates, climate, and everything to grow here.

October in Zone 13 →

What to sow, transplant, and harvest this month.

Growing zucchini & summer squash in other zones