How to Grow Broccolini
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Broccolini
Brassica oleracea var. italica
vegetableBroccolini, also called baby broccoli or Chinese broccoli, is a hybrid between broccoli and Chinese kale with slender stalks and small flowering heads. It offers a milder, slightly sweeter flavor than traditional broccoli with tender stems that are entirely edible. This cool-season crop is quick-growing and prolific, producing multiple harvests from a single plant.
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Example Broccolini timeline · Pittsburgh, PA (Zone 6b)
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Plant Broccolini
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Broccolini
Around May 27≈ 40 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Broccolini dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-10; best grown in spring and fall for cool-season growth
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Seedling
2-3 weeksSmall leaves emerge with true leaves developing within 7-10 days. Plant has 2-4 leaves and minimal stem.
Keep soil moist but not soggy. Provide bright light to prevent leggy growth. Thin seedlings to prevent crowding.
Vegetative Growth
2-3 weeksPlant develops thick, slender stalks with multiple leaves and begins lateral branching. No flowering head visible yet.
Water consistently. Apply balanced fertilizer every 2-3 weeks. Ensure full sun exposure. Monitor for pest activity.
Head Formation
1-2 weeksSmall, tight flowering heads begin forming at the top and along lateral stems. Stalks continue thickening.
Maintain consistent moisture and temperature. Avoid heat stress. Continue fertilizing if soil is poor. Heads are ready when compact and green.
Harvest Ready
3-7 days windowPrimary head reaches 4-6 inches in length with tight, unopened florets. Plant is compact and vibrant green.
Harvest the central head first when florets are firm. Side shoots will develop for secondary harvests.
Secondary Production
2-4 weeksAfter primary head removal, multiple side shoots emerge along the stem, each producing smaller heads.
Continue regular watering and fertilizing. Harvest side shoots when 3-4 inches long. Plant may produce for 4-6 weeks total.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use floating row covers before flowering. Apply Bacillus thuringiensis (Bt) spray when caterpillars appear. Hand-pick larger caterpillars.
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Monitor with pheromone traps. Apply Bt spray every 7-10 days. Use neem oil as preventative.
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Use row covers on young plants. Spray neem oil or insecticidal soap. Dust with diatomaceous earth.
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Spray with strong water stream to dislodge. Apply insecticidal soap or neem oil. Encourage beneficial insects like ladybugs.
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Hand-pick bugs and egg clusters. Use reflective mulches. Spray with neem oil if infestation is severe.
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Rotate crops away from brassicas for 3-4 years. Use disease-resistant varieties. Lime soil to raise pH above 7.2.
Uses
Fresh & Cooked Vegetable
CulinaryBroccolini's tender stems and mild, slightly sweet flavor make it ideal for steaming, sautéing, roasting, or eating raw in salads. The entire stalk is edible, unlike traditional broccoli, reducing waste. [source]
Asian Cuisine
CulinaryWidely used in Chinese and Asian cuisine, broccolini is stir-fried with garlic and soy sauce or combined with oyster sauce and ginger for authentic dishes. [source]
Nutritional & Cancer Prevention
MedicinalLike other brassicas, broccolini is rich in sulforaphane, a compound with potential anti-cancer properties, plus high levels of vitamin C, vitamin K, and antioxidants supporting immune function and bone health. [source]
Sustainable Eating
HouseholdBroccolini's ability to produce multiple side shoots from a single plant over several weeks maximizes yields and reduces the need for replanting, making it economical for home gardens. [source]
Pollinator Support
WildlifeIf left to flower, broccolini produces small yellow flowers that attract bees and beneficial insects to the garden, supporting pollinator populations. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest the central head when it reaches 4-6 inches long with tight, unopened florets (typically 40-60 days after planting). Cut the main head at the base with a sharp knife, leaving 3-4 inches of stem to encourage side shoot development. Side shoots will emerge within 7-10 days and can be harvested when 3-4 inches long for 4-6 weeks of continuous production. Harvest in the morning for best flavor and tenderness. Regular harvesting encourages more side shoot production.
Fun Facts
- 🌱 Broccolini was developed in Japan in the 1990s as a hybrid between broccoli (Brassica oleracea) and Chinese broccoli (gai lan), combining the mild flavor of broccoli with the tender stems of Chinese kale.
- 🌱 The entire stalk of broccolini is edible and nutritious, unlike regular broccoli where much of the stem is discarded—a single plant can produce 12-16 ounces of harvestable heads across multiple cuttings.
- 🌱 Broccolini is sometimes called 'flowering broccoli' in markets, and its small yellow flowers (if left unharvested) are actually edible and slightly sweet, popular as a garnish in upscale cuisine.
Gardening Terms
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