Seeds & planting

Start seeds in trays and care for them

Read the packet before sowing.

When to do it

When the plant’s sowing window and intended transplant conditions allow.

What you need

  • Clean pots or modules with drainage
  • Fresh seed-raising mix
  • Seed, labels and gentle water

How to do it

  1. Read the packet before sowing. Root crops that dislike disturbance are often simpler sown directly.
  2. Moisten the mix and fill containers without packing it hard. Sow at the specified depth and density, then label.
  3. Water with a fine rose or briefly from below; allow excess to drain. Keep the germination layer moist, not constantly saturated.
  4. Provide the packet’s temperature and light conditions. Remove a humidity lid once seedlings emerge and give bright suitable light and airflow.
  5. Check daily. Water as needed, turn trays if leaning, and move crowded seedlings into individual pots when large enough to handle. Harden off before outdoor planting.

What success looks like

  • Seedlings are compact and upright, with healthy new leaves.

Watch out for

  • Leaving seedlings sealed under a hot lid.
  • Sowing too densely or feeding strongly before needed.

Related help

Sources and review

Checked 24 September 2026. Source-checked editorial guidance; not field-tested or independently reviewed by a horticulturist.