Red Giant Mustard
25 Seeds+ · 🌱 Red Giant Mustard SeedsBrassica juncea · A bold leafy green with fiery character 🔥🌿, Red Giant Mustard produces large, savoyed leaves in deep maroon-red ❤️🖤 with bright green veins. Known for its spicy bite and cold toler...
25 Seeds+
🌱 Red Giant Mustard Seeds
Brassica juncea
A bold leafy green with fiery character 🔥🌿, Red Giant Mustard produces large, savoyed leaves in deep maroon-red ❤️🖤 with bright green veins. Known for its spicy bite and cold tolerance ❄️💪, this Japanese heirloom is equally at home in salads, stir-fries, pickles, and braises. Easy to grow, highly nutritious, and visually stunning — it’s a true powerhouse crop for chefs and gardeners alike.
👅 Flavor Profile:
Peppery 🌶️, horseradish-like 🌿, with spicy mustard heat 💥 and earthy undertones 🌱.
🍴 Culinary Uses:
🥗 Add baby leaves to salad mixes for a spicy kick
🥬 Sauté mature leaves like spinach for bold sides
🥟 Use in stir-fries, dumplings & noodle bowls
🥒 Pickle leaves for tangy, spicy condiments
🍲 Add to soups, curries, or braises for heat + depth
👨🍳 Chef’s Pitch:
Red Giant Mustard is the chef’s fiery green 🌱👨🍳🔥. Its ruby-red, crinkled leaves bring bold flavor and dramatic color to plates, salads, and hot dishes. Perfect for chefs who want a leafy green that looks as powerful as it tastes.
🌱 Growing Notes:
🪴 Hardy annual, 12–18” tall, vigorous and fast-growing
❤️ Large savoyed leaves with red-maroon coloration
⏱ Baby leaves in 20–25 days, full maturity in 45–50 days
🌞 Thrives in cool weather, frost enhances sweetness
📦 Cut-and-come-again harvest for continuous supply
Start indoors 8–10 weeks before last frost. Germinate at 26–30 °C on a heat mat; peppers stall below 22 °C. Pot up to 10–15 cm before hardening off outside after nights stay above 12 °C.
Feed balanced through bloom, then bump potassium for fruiting. Stake taller varieties. More detail in our full Canadian growing guide.
Match the pepper to the technique: thin-walled varieties blister fast in a hot pan; thick-walled ones roast or stuff beautifully; fruit-forward ones make balanced sauces and pickles. The variety's flavour profile is your shortcut — see Choosing the right pepper for a use-case guide.




