Zone 8 · Squash Growing Guide

When to Plant Acorn Squash
in Zone 8

Compact winter squash with ribbed dark green skin. More manageable vines than butternut. Harvest when fully black-green and the stem dries out. Stores 2–3 months.

Plant outdoors
Mar 15 – Apr 15
Start indoors
Mar 1 – Mar 10
Last Frost
~Feb 15
Days to harvest
75–90 days
Difficulty
Easy
Growing — Zone 8
Harvest window: Jun – Sep

Planting Calendar

In Zone 8, Acorn Squash should be planted outdoors Mar 15 – Apr 15, after the average last frost date of approximately Feb 15. Start seeds indoors around Mar 1 – Mar 10 for a head start.

Spring crop. Direct sow works well. Cure at room temperature for 2 weeks after harvest.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Moderate
Spacing
36–48 inches
Soil
Rich, well-draining, compost-amended
Days to maturity
75–90 days
Soil pH
6.0–7.5
plant tip · Zone 8

Spring crop. Direct sow works well. Cure at room temperature for 2 weeks after harvest.

Feeding Schedule

How often
monthly
Feed type
balanced then high potassium
Key timing
switch to high-potassium when fruit sets

Moderate feeder. Compost at planting plus 2-3 feeds during the season is sufficient.

Companion Planting for Acorn Squash

What you plant next to acorn squash makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Beans
  • Corn
  • Nasturtiums
Keep away from
  • Potatoes
  • Brassicas
  • Fennel

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Common questions

In Zone 8, start acorn squash seeds indoors around Mar 1 – Mar 10, then transplant outdoors Mar 15 – Apr 15 after your last frost around Feb 15. Spring crop. Direct sow works well. Cure at room temperature for 2 weeks after harvest.
Zone 8 has an average last spring frost of approximately Feb 15 and a first fall frost around Dec 1. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for acorn squash include Beans, Corn, Nasturtiums. Avoid planting near Potatoes, Brassicas, Fennel, which can compete for nutrients or attract pests.
Acorn Squash typically takes 75–90 days from transplant or direct sow to harvest in Zone 8. Expected harvest window: Jun – Sep.

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Acorn Squash in other zones
Crop Guides