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Germinate directly in soil

Germinating seeds directly in soil skips the transfer step completely. The seed opens right where it will grow, so the root is never handled at its most delicate stage. The trade-off is that you cannot see what is happening underground.

That blind spot makes moisture the make-or-break factor. The mix should feel like a wrung-out sponge, damp all the way through but never dripping. Since you cannot watch the root, overwatering can go unnoticed until it is too late. Most seeds push through the surface in 2–7 days.

This method suits growers who want it simple, with the least handling possible. It is cheap and needs only basic supplies. Keep in mind that the starter pot is small, so you will repot the seedling within a few weeks.

Steps and equipment

What you need

  • A small pot (about 10–17 fl oz) with drainage holes
  • Light seed-starting mix
  • Clean water
  • A warm spot

Steps

1. Pick the mix. Use a light, fine seed-starting mix. Skip garden soil, which can carry pests and disease. Skip fertilized potting soil too, because the nutrients can burn a new seedling.

2. Fill and moisten. Fill the pot loosely. Wet the mix evenly until it feels like a wrung-out sponge, and do not press it down.

3. Plant. Make a hole at the right depth. Drop the seed in root-down, and cover it loosely.

4. Keep it damp. Water gently with a mister or a small watering can. A strong stream can wash the seed out or pack down the surface. Do not let the mix dry out completely.

5. Keep it warm. Hold the mix at 22–26°C / 72–79°F. A dome helps, but open it daily.

6. Wait. Most seeds come up in 2–7 days. Do not dig them up to check.

7. Ease into light. Once the seedling is out, give it light. Open the dome a little more each day over 2–3 days.

Repotting

The small starter pot fills with roots within a few weeks, so plan to repot. Do it when roots show at the drainage holes or the seedling looks crowded.

  1. Water the seedling a little ahead of time so the root ball holds together. Do not soak it.
  2. Fill the new pot with moist mix. Press a hole into it as deep and wide as the old pot.
  3. Put your hand over the top of the old pot, with the stem between your fingers.
  4. Turn the pot upside down. Tap or squeeze it until the root ball slides out into your hand. Never pull on the stem.
  5. Set the root ball in the hole at the same depth. Firm the mix gently around it, and water gently.

The pros and cons

Pros

  • There is no transfer, so the root is never handled.
  • It needs very little handling overall.
  • It costs very little.

Cons

  • You cannot see progress below the surface.
  • Overwatering can go unnoticed.

Common mistakes

  • Planting too deep. The seedling can run out of energy before it reaches the light.
  • Overwatering. Too much water pushes out the air, and the seed can rot.
  • Letting the mix dry out. A dry mix stops germination.
  • Digging the seed up. Checking on the seed disturbs it at a fragile stage.
  • A dense mix that drains badly. Heavy mix holds too much water and too little air.

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