Acorn Squash
Cucurbita pepo
A short-season winter squash that does not need curing and should not be stored long.

Do not cure it
Acorn squash is the exception among winter squash: high-temperature curing degrades its flavour and texture and shortens its life. Harvest, wipe clean, and go straight to storage at 50-55F. This is opposite to butternut and worth remembering.
A short keeper
One to two months at best, against butternut's four to six. Plan to eat acorn squash in autumn and early winter rather than treating it as long-term storage. Quality declines noticeably after about eight weeks and the flesh turns stringy and dry.
Judge ripeness by the ground spot
The patch where the fruit rests on the soil changes from pale yellow-white to deep orange when ripe. The rest of the skin should be dull dark green and hard enough to resist a thumbnail. Colour of the top is a poor guide, since acorn squash is dark green from early on.
Bush and vining forms
Vining types run eight to twelve feet; semi-bush varieties (Table Ace, Bush Table Queen) stay in a four to six foot circle and suit smaller gardens. Check the packet.
Vine borer susceptible
Being C. pepo with hollow stems, acorn squash is a prime vine borer target. Wrap the stem base, cover until flowering, or delay a planting to early July to dodge the main flight.
Soil, water and feeding
Heavy feeder. Compost-rich soil, plant on a mound, side-dress when vines run. Steady water during fruit set and sizing, easing off as the fruit matures so the skins harden.
Other pests and disease
Squash bugs, cucumber beetles and bacterial wilt, plus powdery mildew from midsummer. Rotate cucurbits on three years.
Harvest
Cut with two to three inches of stem attached, before a hard frost. Never carry by the stem. Handle gently - a bruise becomes a rot spot.
Kitchen
The classic treatment is halved, seeded, and roasted cut side down with butter and maple or brown sugar. The skin is edible when roasted, unlike most winter squash.
- Days to harvest
- 80-100
- Spacing
- 3-4 ft
- Row spacing
- 6 ft
- Sun
- Full
- pH
- 6.0-6.8
- Cure
- Do not cure
- Storage
- 1-2 months
- Ripe sign
- Ground spot turns orange