When to Sow White Mustard?
White Mustard is a popular garden vegetable grown across temperate climates. Below you'll find exact sowing dates, growing requirements, recommended fertilization and companion plants — all from our plant database. Click the button to see dates personalised for your region in the interactive planner.
Sowing dates – 🌿 White Mustard
| Sowing dates | White Mustard |
|---|---|
| Indoor sowing | — |
| Transplanting | — |
| Direct sowing | Aug–Sep |
| Harvest period | Sep–Oct |
| Days to harvest | 45 |
| Spacing | 5 × 15 cm |
| Sowing depth | 2 cm |
| Days to germination | 5 |
Growing requirements
White Mustard (Sinapis alba) belongs to the family: Brassica. The requirements below come straight from the app database – you will see the same values on the plant card in Gardener Planner.
| Sunlight | high |
| Water | medium |
| Soil | loamy |
| pH | 6–7.5 |
| Family | Brassica |
Fertilization (NPK)
Approximate nutrient demand. For precise doses, test your soil first – the NPK fertilizer calculator will do the math for you.
| Nitrogen (N) | low (2–4 g/m² per season) |
| Phosphorus (P) | low (30–50 mg/l in soil) |
| Potassium (K) | low (100–125 mg/l in soil) |
Companion planting
Good companions reduce pests and diseases and make better use of bed space. Click a vegetable to see its sowing dates.
Good companions: Potato, Beans, Peas
Bad companions: Cabbage, Cauliflower, Broccoli, Kale, Kohlrabi, Radish
Plan your White Mustard in the app
Gardener Planner lets you match sowing dates to your climate zone, track progress and plan crop rotation across your whole garden.
Open Gardener Planner →Frequently asked questions
When to sow White Mustard indoors?
White Mustard does not need to be started indoors — sow directly into the garden.
When to transplant White Mustard?
White Mustard is direct-sown and does not require transplanting.
When to harvest White Mustard?
Harvest White Mustard from Sep–Oct (approx. 45 days from transplanting/germination).
What spacing and sowing depth?
Spacing: 5 × 15 cm. Sowing depth: 2 cm. Days to germination: 5.
What to plant next to White Mustard?
Good companions: Potato, Beans, Peas. Bad companions: Cabbage, Cauliflower, Broccoli, Kale, Kohlrabi, Radish.
When to Sow? – Sowing dates for every vegetable
🍅 Tomato · 🥕 Carrot · 🥒 Cucumber · 🥒 Greenhouse Cucumber · 🥬 Lettuce · 🫑 Pepper · 🥔 Potato · 🧅 Onion · 🥬 Cabbage · 🫘 Beans · 🫛 Peas · 🥬 Radish · 🥒 Zucchini · 🎃 Pumpkin · 🧄 Garlic · 🥬 Leek · 🥬 Spinach · 🥬 Beetroot · 🥦 Broccoli · 🥬 Cauliflower · 🥬 Kohlrabi · 🥬 Celery · 🌿 Parsley · 🥕 Parsnip · 🍆 Eggplant · 🌽 Corn · 🍠 Sweet Potato · 🥬 Asparagus · 🥬 Turnip · 🥬 Brussels Sprouts · 🥬 Kale · 🥬 Swiss Chard · 🥬 Arugula · 🥬 Endive · 🥬 Rhubarb · 🌿 Horseradish · 🌿 Fennel · 🥬 Artichoke · 🥬 Okra · 🥬 Watercress · 🌿 Chives · 🌿 Basil · 🌿 Dill · 🌿 Mint · 🌿 Thyme · 🌿 Rosemary · 🌿 Sage · 🌿 Oregano · 🌿 Cilantro · 🌿 Lovage · 🥬 Sorrel · 🫛 Broad Beans · 🍓 Strawberry · 🍉 Watermelon · 🍈 Melon · 🥬 Pak Choi · 🎃 Pattypan Squash · 🥬 Lamb's Lettuce · 🥔 Jerusalem Artichoke · 🌿 Tarragon · 🌿 Lemon Balm · 🌿 Phacelia