Practical planning tools for short growing seasons.
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 windowJune 6 – June 20
MethodTransplant
Typical days to maturity70–90
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 target1000
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 used1702 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.
Recommended starting point
StoneheadEarly
900 GDD needed1702 available before frost
June 20August 31
Comfortable fit
Why this fit?
Local season fit:
Stonehead leaves about 802 GDD cushion against the normal Jackson crop heat estimate.
Best for: reliable early cabbage.
A dependable cabbage that is especially useful when gardeners want a firm early head.
Tradeoff: More about dependable heading than maximum size.
Red ExpressEarly
900 GDD needed1702 available before frost
June 20August 31
Comfortable fit
Why this fit?
Local season fit:
Red Express leaves about 802 GDD cushion against the normal Jackson crop heat estimate.
Best for: faster red cabbage.
A useful red cabbage option when gardeners want color without moving all the way into slow storage types.
Tradeoff: Chosen for color as much as storage or size.
Fastest / most cushion
Early Jersey WakefieldVery early
800 GDD needed1702 available before frost
June 20August 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 AcreVery early
800 GDD needed1702 available before frost
June 20August 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. 4Late
1150 GDD needed1702 available before frost
June 20August 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.
CheersMid-season
1000 GDD needed1702 available before frost
June 20August 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 frostJune 20
Typical first fall frostAugust 31
Typical frost-free days72
Minimum safe temperature28°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.