Climate-based cabbage planting guide for Jackson, Wyoming

When to Plant Cabbage in Jackson

Cabbage is usually a good match for the season in Jackson. Gardeners generally have enough margin to think about preference and quality, not just speed.

Typical Planting Window

Strong fit in this climate

Use the planting dates below for cabbage in Jackson.

Start indoors April 25
Typical planting window June 6 – June 20
Method Transplant
Typical days to maturity 70–90

Cabbage is usually started indoors around April 25 and planted outdoors during the normal local window of June 6 to June 20. Most varieties need about 70–90 days to reach maturity once they are in the garden.

Cabbage is usually a dependable choice in Jackson. Normal timing and realistic variety choice are usually enough to produce dependable results.

This crop is usually dependable here, though the difference between decent and excellent results still comes from steady growth and harvest stage.

Best local strategy: Treat the season as supportive, then focus on consistency and crop quality more than simple maturity insurance.

Can Cabbage Mature in Jackson?

Growing degree days measure how much useful warmth typically accumulates during the season. For cabbage, this helps estimate whether local heat accumulation is usually enough for the crop to reach maturity on time.

Available GDD (base 40) 1702
Typical crop GDD target 1000
Heat margin +702

From the usual planting window, Jackson typically provides about 1702 growing degree days for cabbage. With a typical crop target of 1000, that leaves a heat margin of +702. That heat margin usually gives the crop a dependable buffer, so gardeners have some flexibility in planting date and variety choice without pushing the crop close to the edge.

When Is It Too Late to Plant?

If planting later than usual, this table shows how much growing degree day heat is still available from each point in the season. It is most useful for judging how much flexibility you still have before the crop starts losing margin.

Checkpoint Remaining GDD Heat margin Fit vs typical target
Apr 15 2345 +1345 Comfortable
May 1 2333 +1333 Comfortable
May 15 2262 +1262 Comfortable
Jun 1 2098 +1098 Comfortable
Jun 15 1915 +915 Comfortable
Jul 1 1652 +652 Comfortable

How Different Cabbage Varieties Affect Results

The season in Jackson usually supports most cabbage varieties comfortably, which means the more useful decision is what kind of crop you want rather than simply how fast it finishes.

Varieties that often fit well here include:

  • Golden Acre — a classic early cabbage with strong practical fit in shorter seasons
  • Early Jersey Wakefield — an early pointed cabbage that is useful when speed and spring harvests matter more than storage
  • Stonehead — reliable and approachable, especially where gardeners want a firm early head
  • Red Express — a faster red cabbage option for gardeners who want color without moving all the way into long-season storage types
  • Cheers — productive and strong where the season offers a comfortable cool run
  • Storage No. 4 — better suited where the growing window gives longer room for finishing

Best Cabbage Varieties for Jackson

Cabbage variety choice in Jackson is mostly about head size, storage quality, compactness, and how much time you want to give the crop before harvest.

June 20 local season starts August 31 frost pressure returns
Less heat used 1702 GDD available

Hover or tap the dots to see which recommended varieties use that much local heat.

For Jackson, start with Stonehead and Red Express for cabbage when you want reliable early cabbage or a faster red cabbage option. Choose Early Jersey Wakefield and Golden Acre when you want early pointed spring cabbage or early compact cabbage heads. Look at Storage No. 4 and Cheers when you specifically want storage cabbage or productive main-season cabbage.

Compare each variety’s heat need and maturity timing against the local frost-free window before choosing what to grow.

Fastest / most cushion

Early Jersey Wakefield Very early
800 GDD needed 1702 available before frost
June 20 August 31
Comfortable fit
Why this fit?

Local season fit: Early Jersey Wakefield leaves about 902 GDD cushion against the normal Jackson crop heat estimate.

Best for: early pointed cabbage.

A quick pointed cabbage that is useful when speed and spring harvests matter more than storage.

Tradeoff: Not a storage-focused cabbage.

Golden Acre Very early
800 GDD needed 1702 available before frost
June 20 August 31
Comfortable fit
Why this fit?

Local season fit: Golden Acre leaves about 902 GDD cushion against the normal Jackson crop heat estimate.

Best for: early compact heads.

A classic early cabbage that gives gardeners a practical short-season path to firm heads.

Tradeoff: Not the biggest or best storage cabbage.

Also realistic

Storage No. 4 Late
1150 GDD needed 1702 available before frost
June 20 August 31
Comfortable fit
Why this fit?

Local season fit: Storage No. 4 leaves about 552 GDD cushion against the normal Jackson crop heat estimate.

Best for: storage cabbage.

A longer-season cabbage better suited to places with enough room for a full finish.

Tradeoff: Needs a longer finish than early cabbage.

Cheers Mid-season
1000 GDD needed 1702 available before frost
June 20 August 31
Comfortable fit
Why this fit?

Local season fit: Cheers leaves about 702 GDD cushion against the normal Jackson crop heat estimate.

Best for: productive main-season cabbage.

A strong cabbage choice where the season offers a comfortable cool run.

Tradeoff: Needs more room than compact early cabbage.

GDD comparisons are a planning shortcut, not a guarantee. Soil, watering, sowing depth, pests, transplant quality, and harvest goals still affect the final result.

Variety class Typical days to maturity Typical GDD need Local fit
Very early 60–70 800 Good fit
Early 70–80 900 Good fit
Mid-season 80–95 1000 Good fit
Late 95–110 1150 Good fit

Main risk: When this crop underperforms in Jackson, the culprit is usually timing or variety choice rather than the climate itself.

How Frost Affects Planting Dates for Cabbage in Jackson

Jackson usually has about 72 frost-free days, with a typical last spring frost around June 20 and a typical first fall frost around August 31.

Typical last spring frost June 20
Typical first fall frost August 31
Typical frost-free days 72
Minimum safe temperature 28°F / -2 °C

Cabbage is generally somewhat frost tolerant and temperatures below about 28°F ( -2 °C) can slow growth or damage plants.

Cabbage is usually tolerant enough of cool conditions that light frost is not the main concern. The more useful question is how early planting affects establishment and overall crop quality.

When this crop underperforms in Jackson, the culprit is usually timing or variety choice rather than the climate itself.

In Jackson, the local season usually gives cabbage plenty of breathing room when planting happens around May 30. For a better local margin, gardeners usually do best in south-facing walls, sheltered gardens, raised beds, and sunnier urban lots. Cooler spots like low spots, exposed sites, and shadier yards often make timing tighter. For cabbage, the best local sites often help the crop get moving earlier and make timing a little more forgiving.

Set up cabbage for steady growth and pest protection

The better results usually come from steady growth, pest protection, and avoiding early setbacks.

Transplant support

Strong young plants help avoid slow starts and uneven sizing.

Pest and weather protection

Brassicas and leafy crops often benefit from simple protection while they establish.

Even growth

Consistent moisture and spacing help the crop size evenly.

Recommendations are based on the local growing margin for this crop. As an Amazon Associate, we may earn from qualifying purchases.

For a broader local overview, see the Jackson planting guide. You can also use the Growing Degree Day Planner to test planting dates and crop timing.