Cool-season crops

Broccoli planting calendar and growing plan

This record covers standard heading broccoli. Sprouting and overwintered forms require their own season assumptions and should not inherit these dates without review.

Plan dates for Broccoli

Editable example

This date narrows indoor sowing for transplantable crops. It does not change the source reference for outdoor conditions.

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Start indoors

Mar 20 – 27, 2027 Suggested window

Transplant outside

Apr 17, 2027 Suggested window

Direct sow

Apr 10 – 17, 2027 Suggested window

Paired transplant date (optional)

Transplant outsideStart indoors
Apr 17, 2027Mar 20 – 27, 2027

Sowing windows combine possible transplant dates. Choose a paired transplant date to narrow the nursery window. Wait for suitable soil and local conditions.

Direct sowing and transplanting are alternative ways to start a crop. Keep the tasks that match your method.

Sources and conditions

The standard-broccoli chart uses a three-to-four-week nursery period. A different guide’s longer nursery period is not averaged into it.

  • These are reviewed planning references. Check the variety, local soil and weather before acting; a frost date is not a forecast.
  • This record uses standard heading broccoli, not overwintered or sprouting broccoli.

The chart supplies a two-week-before-frost reference for setting out.

  • These are reviewed planning references. Check the variety, local soil and weather before acting; a frost date is not a forecast.
  • This record uses standard heading broccoli, not overwintered or sprouting broccoli.

This is the Utah spring direct-sowing reference for standard broccoli.

  • These are reviewed planning references. Check the variety, local soil and weather before acting; a frost date is not a forecast.
  • Use the direct-sowing spring reference only when local conditions support establishment.

A planning reference, not a weather forecast.

A short selected nursery schedule

The seed-starting chart supplies the chosen nursery duration before setting out. Other guides recommend a longer period; retain the selected source when moving the dates.

Leave room for side shoots

The spacing source explains that close planting can reduce head size and side-shoot development. A layout with more dots may not match a goal of harvesting substantial side shoots.

Count sowings, not harvests

Picking side shoots from a plant is not another sowing batch. No general repeat-sowing interval is assigned here; use a second crop only with space and a suitable local window.

Questions growers ask

Can I use these dates for overwintered sprouting broccoli?

This record is specifically for standard heading broccoli. An overwintered or sprouting variety needs a reviewed plan for its own growth cycle.

Sources and conditions

These sources describe particular climates and growing methods. Use the conditions alongside the numbers.

Seed-Starting Date Calculator ↗

General nursery and setting-out reference, using a user-supplied spring frost-free date. Nursery duration is measured before setting out.

How to Grow Broccoli in Your Garden ↗

Utah home gardens; standard heading broccoli and its spacing tradeoff with side shoots.