When to Sow Sweet Potato?
Sweet Potato – heat-loving root vegetable with a sweet flavor. 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 – 🍠 Sweet Potato
| Sowing dates | Sweet Potato |
|---|---|
| Indoor sowing | — |
| Transplanting | — |
| Direct sowing | May–Jun |
| Harvest period | Sep–Oct |
| Days to harvest | 120 |
| Spacing | 40 × 80 cm |
| Sowing depth | 5 cm |
| Days to germination | 14 |
Growing requirements
Sweet Potato (Ipomoea batatas) belongs to the family: Morning glory. 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 | sandy |
| pH | 5.5–6.5 |
| Family | Morning glory |
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 (5–8 g/m² per season) |
| Phosphorus (P) | medium (50–70 mg/l in soil) |
| Potassium (K) | medium (150–200 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: Beans, Radish
Bad companions: Potato
Plan your Sweet Potato 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 Sweet Potato indoors?
Sweet Potato does not need to be started indoors — sow directly into the garden.
When to transplant Sweet Potato?
Sweet Potato is direct-sown and does not require transplanting.
When to harvest Sweet Potato?
Harvest Sweet Potato from Sep–Oct (approx. 120 days from transplanting/germination).
What spacing and sowing depth?
Spacing: 40 × 80 cm. Sowing depth: 5 cm. Days to germination: 14.
What to plant next to Sweet Potato?
Good companions: Beans, Radish. Bad companions: Potato.
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 · 🥬 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