Calabrese Green Sprouting

Family: Brassicaceae Vegetable

Tender, sweet sprouting florets emerge in a cascade of deep green—lush to the eye and delightfully mild on the palate.

Calabrese Green Sprouting forms a sturdy, blue-green head that quickly gives way to abundant side shoots, each one crisp-tender with a fine, succulent bite. Ideal for gardeners who love repeat harvests, it shines in fresh salads and shines just as brightly when roasted, steamed, or folded into hearty sauces for weeknight abundance.

Light: Full SunMaturity: 75 DaysHabit: Upright

Botanical illustration of Calabrese Green Sprouting

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Mar 28th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 18th
Harvest Begins	Jul 2nd
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	75
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	45
Min Soil Temp (°F)	40
Min Night Temp (°F)	35
Harden Off (days)	6

Culinary Notes

Chef's Note

This Calabrese is built for repeat harvest eating: the sprouting florets stay crisp-tender and mild, so they hold up to heat without turning harsh or cabbagey. Use it hot with lemon and butter or fold it into a Parmesan-mustard sauce where its texture can still “read” between bites.

Best Uses

flash-steam or quick roast to keep the sprouting florets vivid and snappy
toss into salads where it needs a dressing-friendly crunch
fold into a thick, creamy cheese sauce or purée for a silky, vegetable-forward base
stir-fry just until the edges char and the centers stay sweet

Flavor Profile

sweet, mild broccoli nuttiness crisp-tender succulent bite in the side shoots pleasant grassy snap with a clean, not-bitter finish

Kitchen Pairings

lemon parmesan olive oil butter mustard anchovy

Frequently Asked Questions

What disease is most likely on Calabrese (Brassica oleracea var. italica) and how do I treat it?

Watch for black rot, which shows as yellowing V-shaped leaf lesions that darken and spread, especially in cool, wet weather. Remove and destroy infected leaves immediately, avoid overhead watering, and improve airflow by spacing plants well. If it keeps spreading, rotate out of Brassicaceae beds for several years and consider an approved copper or biological fungicide labeled for brassicas in your area.

How often should I water Calabrese during the main growing phase?

During heading and sprout development, keep the soil evenly moist—aim for about 1 to 1.5 inches (2.5–4 cm) of water per week depending on rainfall. Water deeply when the top 1 inch of soil (2–3 cm) starts to dry, rather than giving frequent light sprinklings that encourage shallow roots and stress. Consistent moisture helps prevent uneven sprouting and bitter-tasting florets.

How can I tell when Calabrese is ready to harvest?

Harvest when the main head is fully formed and tight, with flower buds still firm and green, before any yellow blossoms appear. After cutting the main head, continue harvesting the side shoots when they reach the size of your thumb and the buds are still tight. For most home plantings, this is around 75 days from sowing/transplanting, but head firmness is the true trigger.