When to Sow Phacelia?
Phacelia 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 – 🌿 Phacelia
| Sowing dates | Phacelia |
|---|---|
| Indoor sowing | — |
| Transplanting | — |
| Direct sowing | Apr–Aug |
| Harvest period | Jun–Oct |
| Days to harvest | 50 |
| Spacing | 5 × 15 cm |
| Sowing depth | 1 cm |
| Days to germination | 8 |
Growing requirements
Phacelia (Phacelia tanacetifolia) belongs to the family: Other. 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 | low |
| Soil | sandy |
| pH | 6–7.5 |
| Family | Other |
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: Tomato, Cabbage, Carrot, Onion
Plan your Phacelia 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 Phacelia indoors?
Phacelia does not need to be started indoors — sow directly into the garden.
When to transplant Phacelia?
Phacelia is direct-sown and does not require transplanting.
When to harvest Phacelia?
Harvest Phacelia from Jun–Oct (approx. 50 days from transplanting/germination).
What spacing and sowing depth?
Spacing: 5 × 15 cm. Sowing depth: 1 cm. Days to germination: 8.
What to plant next to Phacelia?
Good companions: Tomato, Cabbage, Carrot, Onion.
When to Sow? – Sowing dates for every vegetable
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