Harvest guide
When to Harvest Broccoli (Signs It's Ready)
Broccoli is ready about 60 to 90 days after planting, when the central head is 4 to 7 inches across with tight, dark-green buds, before any open to yellow. Here are the cues, the cut, and the weeks of side shoots that follow.
Days to maturity
60–90days
Ready when
Tight green head before buds open to yellow
The short answer
Broccoli is ready about 60 to 90 days after planting, when the central head is full-sized (4 to 7 inches across) with tight, dark-green buds, before any buds swell or open to yellow flowers. Cut the main head with 5 to 6 inches of stem, and the plant keeps making smaller side shoots for weeks.
The harvest card above gives you the window at a glance. The rest of this guide is how to read the buds, make the cut, and keep the plant producing after the main head is gone.
Days to maturity and head size
The "right day" depends on the variety and the season, so treat the calendar as a window, not a deadline.
Clemson Extension puts broccoli at 50 to 90 days after transplanting, Maryland Extension lists 60 to 75 days, and Iowa State Extension lists 55 to 65 days from transplant, longer for a fall crop. Together that covers the 60 to 90 day band most home gardeners see.
| What to check | Ready range | Source |
|---|---|---|
| Days from transplant | 60–90 days | Clemson, Maryland, Iowa State |
| Central head diameter | 4–7 inches | Illinois, Clemson, Maryland |
| Bud color | Tight, dark green | all sources |
| Side shoots later | 1–3 inches | Illinois, Maryland |
The day count gets you in the neighborhood. The buds tell you the exact day.
How to tell it's ready
The calendar gets you close. The head itself is the real signal.
Check these four cues before you cut:
- Tight, compact buds. The head should be a firm cluster of small, closed buds. Clemson Extension says harvest while the flower buds are still tightly closed.
- Full size. A mature central head runs 4 to 7 inches across. Illinois Extension puts it at 4 to 6 inches or even larger, and Maryland Extension calls the ready head about 6 to 7 inches.
- Dark green color. The buds should be deep green or blue-green, not pale and not yellowing.
- Before yellow. This is the deadline. The moment any bud swells or shows a hint of yellow petal, the window is closing fast.
When the buds are tight, dark, and full-sized, stop watching and start cutting.
How to harvest broccoli
Cut, do not snap. Broccoli stems are thick and woody, and a clean cut leaves the plant ready to push side shoots.
- Cut in the morning. The head is firmest and coolest early in the day, before the sun softens it. Cool heads also hold their quality longer once they are off the plant.
- Cut the main stem below the head. Illinois Extension says cut the central head with 5 to 6 inches of stem. Iowa State allows 6 to 8 inches of stalk. Use a sharp knife or shears.
- Cut at a slant. Angle the cut so the stub sheds water instead of holding it in the center.
- Leave the plant in the ground. The lower stalk and leaves stay put to feed the side shoots that come next.
Do not wait for one giant head. A tight 5-inch head beats a loose 8-inch one every time.
Common mistake
Two mistakes cost the most broccoli. Waiting too long lets the tight buds swell and open to bright yellow flowers, which turns the head bitter and ruins the texture. Clemson Extension says harvest while the buds are still tightly closed. The second is harvesting in midday heat, when the head is warm and soft and wilts fast off the plant. Cut early, and cut the moment the buds are full and tight, not a few days later.
Side shoots and storage
Cutting the main head is not the end. It is the start of the second harvest.
After you remove the central head, the plant sends up smaller side shoots from the lower leaf joints. Illinois Extension says removing the central head stimulates these side shoots, and you can usually keep harvesting for several weeks. Maryland Extension lists the side heads at about 1 to 3 inches across. Cut them the same way, while the buds are tight, and a single plant feeds you for a month or more.
For storage, skip the wash. Put the unwashed head in a loose or perforated plastic bag and refrigerate it. Illinois Extension keeps fresh broccoli 3 to 5 days this way, and Maryland Extension stores it 10 to 14 days. For a glut of side shoots, blanch and freeze what you cannot eat.
Pro tip
Cut the main stem at an angle, not straight across. A flat cut leaves a level surface where rain and irrigation water pool, and that wet stub can rot down into the stalk and cost you the side shoots. A slanted cut sheds water off the side, so the plant stays sound and keeps producing.
Get the spacing right next year
Crowded broccoli makes small, loose heads that never tighten up the way a well-spaced plant does. Give each plant room and the central head sizes up clean and the side shoots keep coming.
Set broccoli about 18 inches apart in rows roughly 24 to 36 inches apart. The plant spacing chart has the full crop list, and the Plant Spacing Calculator shows how many plants fit your bed.
Try it — Plant Spacing Calculator
Full calculatorExtra to cover losses (10% is typical).
You can plant
32plants
- Per row
- 8
- Rows
- 4
- Buy (incl. spare)
- 36 plants
Broccoli is one of the cole crops. The same "cut before it opens" logic shapes when to harvest cabbage, and the leafy greens have their own cues in when to harvest lettuce and when to harvest spinach.
Your next step
Broccoli is ready when the central head is 4 to 7 inches across with tight, dark-green buds, somewhere in the 60 to 90 day window. Cut it in the morning with 5 to 6 inches of stem, slant the cut, and leave the plant to throw side shoots for weeks.
Planning next season's bed? Open the Plant Spacing Calculator and set your broccoli at 18 inches so every plant has room to head up.
Common questions
How do I know when broccoli is ready to pick?
Look at the buds. The central head should be full-sized, 4 to 7 inches across, with a tight, compact cluster of small, dark-green buds. None should be swollen or showing yellow. Maryland Extension calls the ready head tight and blue-green at about 6 to 7 inches. If the buds are still firm and closed, it is time to cut.
Can you leave broccoli on the plant too long?
Yes, and it happens fast in warm weather. Once the tight buds start to swell and open to bright yellow flowers, the head loses quality and turns bitter. Clemson Extension says to harvest while the flower buds are still tightly closed. If you spot any yellow, cut it that day and use it.
Does broccoli grow back after you cut the main head?
Yes. After you remove the central head, the plant pushes out smaller side shoots from the lower leaf joints. Illinois Extension says removing the central head stimulates these side shoots, and you can usually keep harvesting for several weeks. Leave the plant in the ground and keep cutting.
How big should the broccoli head be before cutting?
A full central head runs about 4 to 7 inches across, though some varieties go larger. Illinois Extension puts the central head at 4 to 6 inches or even larger, and Clemson lists 3 to 6 inches. Size matters less than the buds. Cut while they are tight and dark green, whatever the diameter.
How do you store fresh broccoli?
Do not wash it first. Put the unwashed head in a loose or perforated plastic bag in the refrigerator crisper. Illinois Extension keeps fresh broccoli 3 to 5 days that way, and Maryland Extension stores it 10 to 14 days. For longer, blanch and freeze the surplus.
Sources
Agronomic claims in this guide are checked against these primary sources.
- Broccoli — University of Illinois Extension
- Broccoli — Clemson Cooperative Extension Home & Garden Information Center
- Growing Broccoli in a Home Garden — University of Maryland Extension
- Growing Broccoli in the Home Garden — Iowa State University Extension and Outreach
Keep reading
When to Harvest Cabbage (Signs It's Ready)
Cabbage is ready about 70 to 100 days after transplanting, when the head feels firm and solid as you squeeze it and has reached full size for the variety. Cut it before it splits.
Read →When to Harvest Lettuce (Leaf + Head Types)
Lettuce is ready about 30 to 60 days after sowing. Pick the outer leaves of leaf types as soon as they are 3 to 4 inches, and cut head types when they are full and firm. Here are the cues, the cut-and-come-again trick, and how to beat the bolt.
Read →When to Harvest Spinach (Signs It's Ready)
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Read →When to Plant Zucchini (Frost + Soil Temp Timing)
Plant zucchini after your last spring frost, once the soil hits at least 60 F (ideally 65 to 70 F). Direct-sow seeds 1/2 to 1 inch deep, or set out transplants started 2 to 4 weeks earlier. Warm zones get a second fall crop.
Read →When to Plant Tomatoes (Frost + Soil Temp by Zone)
Set tomato transplants out 1 to 2 weeks after your last spring frost, once soil hits at least 60 F. Start seeds indoors 6 to 8 weeks before that frost date. Cold soil stalls them, so wait for warmth.
Read →When to Plant Swiss Chard (Spring and Fall Timing)
Plant swiss chard 2 to 4 weeks before your last spring frost, once the soil hits 40°F. Sow again 3 to 4 weeks before the first fall frost. Seeds go half an inch to an inch deep.
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