VegetableMustard green
Florida Broadleaf Mustard
Broadleaf Mustard
Florida Broadleaf Mustard is a vigorous, fast-growing leafy green that brings bold flavor and impressive nutrition to spring gardens across hardiness zones 2 through 10. This cultivar of Brassica juncea matures in just 40 to 49 days, making it one of the first greens ready for harvest when the season turns mild. The plant reaches 18 to 24 inches tall with distinctive broad leaves featuring bright green color and white midribs, creating a striking appearance in beds or containers. Rich in vitamins A, B, and C, this tenacious green thrives in cool weather and rewards succession planting with continuous harvests throughout the season.
Photo © True Leaf Market(https://www.trueleafmarket.com/products/mustard-florida-broadleaf-seeds)
Growing Conditions
USDA Zone
2-10
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Fertile Loam
Preferred Temp65-75°F
Growth Stats
24 in
Height
PeriodAnnual
TypeBush
Spacing
8-12 inches apart in rows 18-24 inches apart
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
2-10
Size
24in H x ?in W
Growth
Annual
Care
Moderate
Hover over chart points for details
Highlights
What sets Florida Broadleaf Mustard apart is its remarkable speed to maturity combined with a vigorous growth habit that outpaces many spring greens. The broad, luminous leaves with contrasting white veins are visually striking in the garden, and the plant's hardiness across such a wide range means gardeners from cold climates to warm zones can grow it. Direct seeding is strongly recommended over transplanting, as the plants can bolt prematurely if stressed during transplant. Its reputation as one of the first greens of the season makes it a beloved choice for impatient gardeners eager to harvest fresh leaves in early spring.
Common Uses
Florida Broadleaf Mustard is grown primarily for its tender young leaves, which are harvested and eaten fresh in salads or cooked down like greens. The broad leaf structure makes it especially suited to applications where you want substantial, easy-to-handle leaves rather than delicate microgreens. Young leaves can be harvested when plants are just a few inches tall for a milder flavor, or allowed to mature for more pronounced mustard bite.
Growing Timeline
First Bloom
Does Not Bloom (Grown For Leaves)
First Harvest
30-45 Days After Sowing
Last Harvest
60-75 Days After Sowing
Care Instructions
Start Indoors
Starting seeds indoors is not recommended for Florida Broadleaf Mustard, as transplant stress commonly causes plants to bolt prematurely and flower before producing harvestable leaves.
Direct Sow
Sow seeds directly outdoors 4 to 6 weeks before your average last frost date, when soil temperature reaches at least 40 degrees Fahrenheit—ideally between 60 and 75 degrees for optimal germination. In mild climates, you can sow in late fall through winter for cool-season harvests. For continuous production, make successive sowings every three weeks until 10 to 12 weeks before your average first frost date.
Harvesting
Florida Broadleaf Mustard can be harvested as early as 40 to 49 days after sowing, though you can begin picking individual outer leaves once the plant is established and several inches tall. Harvest the largest outer leaves first, working from the bottom of the plant upward, which encourages continued growth from the center. For the mildest flavor, pick leaves when they are young and tender; older, larger leaves will have a more assertive mustard bite. Regular harvesting extends the plant's productive season and prevents early bolting.
Growing Calendar
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Companion Planting
Ecology & Traits
Edible
Soil pH Range
6.5 – 7.5
Scientific Classification
Brassica juncea (L.) Czern.
Family
Brassicaceae
Genus
Brassica
Duration
Annual, Perennial
Growth Habit
Forb/herb
Native Status
L48 (I)AK (I)HI (I)PR (I)VI (I)CAN (I)