Florida Broadleaf Mustard Seeds | Southern Cooking Greens

Florida Broadleaf mustard seeds grow broad, leafy greens with classic mustard flavor for fresh picking and Southern-style cooking. Harvest tender young leaves for salads or let them size up for steaming, boiling, and braising. A few freshly picked leaves can bring a peppery lift to a salad, while a larger harvest makes a satisfying pot of cooked greens.

Choose your seed pack

• Packet: approximately 1,000 seeds.
• 1/4 oz pack.
• 1 oz pack.
• 1/4 lb pack: 4 oz.
• 1 lb pack.

One cart quantity purchases one selected pack. Weight-based packs are sold by weight; seed counts vary by lot. This listing is for seeds to plant, not harvested greens or live plants.

Variety details

• Variety: Florida Broadleaf mustard.
• Botanical name: Brassica juncea.
• Leaf type: broad green leaves suitable for baby-leaf and mature harvests.
• Flavor: characteristic mustard bite, with tenderness and intensity affected by leaf age and growing conditions.
• Approximate maturity: 45–60 days for larger leaves under favorable conditions; baby leaves can be picked earlier.
• Potential height: up to approximately 25 inches, depending on conditions and harvest stage.
• Best season: cool-weather spring and fall crops.

When to sow

Direct sowing is recommended. Sow outdoors approximately 4–6 weeks before your average last spring frost when the soil is workable, or in late summer about 8–10 weeks before the first expected fall frost. Adjust timing to local weather and soil conditions.

Cool weather favors tender leaves, and light fall frosts may improve flavor. Hot weather can intensify pungency and encourage bolting. Hard freezes can damage or end the crop, so do not assume winter survival in every climate.

Planting and spacing

Choose full sun to light partial shade and fertile, well-drained soil. Work finished compost into the bed before sowing. Sow approximately 1/4 inch deep, water gently, and keep the seedbed evenly moist until seedlings establish.

Thin plants to approximately 6–12 inches apart for larger leaves, allowing more room for full-size plants. Baby-leaf crops can be grown more closely and harvested young. Avoid crowding mature plants, which limits airflow and leaf development.

Watering and care

Water consistently to support steady, tender growth without keeping the roots waterlogged. Mulch around established plants to help conserve moisture and reduce weeds. Feed according to soil needs and fertilizer label directions rather than relying on a fixed feeding schedule.

Check leaves regularly for flea beetles, caterpillars, and aphids. Lightweight insect netting or row cover installed after sowing can help protect young plants; secure the edges and allow room for growth. Rotate brassica crops where practical.

Growing in containers

Use a pot with drainage holes and approximately 8–12 inches or more of soil depth. Fill with potting mix suitable for vegetables and give plants enough room for the harvest size you want. Containers need more frequent moisture checks than garden beds; avoid letting the mix repeatedly dry out.

Harvesting

Begin picking a few baby leaves when they are around 2 inches tall and plants are established enough to tolerate cutting. For repeated harvests, remove outer leaves while leaving the central growing point intact. Alternatively, harvest the whole plant at your preferred size.

Pick regularly while leaves are tender. Plan to finish spring harvests before sustained summer heat reduces quality. Fall harvests can continue while temperatures remain suitable, but protection needs depend on local conditions.

Kitchen use and storage

Wash harvested leaves thoroughly under running water before preparation. Use tender young leaves in salads if you enjoy their mustard bite, and cook larger leaves by steaming, boiling, sautéing, or braising. Remove tough stems as needed.

Cool harvested greens promptly and refrigerate in a clean bag or container that helps retain moisture. Use soon for the best texture, discarding any slimy or spoiled leaves.

Seed storage

Keep unused seeds sealed in a cool, dry, dark place away from heat and moisture. Label stored seed with the variety and purchase date.