Three ways to sow greens: broadcast, rows, or thick sowing then transplant
The same seed packet needs different handling: broadcasting saves labour but forces early thinning, drilling is easier to manage and uses less seed, and thick sowing plus transplanting has to happen at the seedling stage. Pick wrong and you spend the season catching up.
Three things decide it: seed size, whether you will thin and space the plants later, and whether you can physically stand in the bed.
What each method is for
| Method | Best for | The cost |
|---|
| Broadcast | Small patches, dense sowing for baby greens, very fine seed | Seedlings crowd, so thin early; uses the most seed |
| Drill (rows) | Where you will thin and space plants, and need to walk in | Requires opening furrows; poor row spacing makes weeding hard |
| Station (hills) | Large seed with clear spacing (beans, cucurbits) | Slow, and gaps need re-sowing |
Covering depth: thin beats thick for greens
- Cover greens with about 0.5-1 cm; too deep and emergence is slow or never happens.
- On sandy soil you can go slightly deeper; on heavy soil keep it shallow or a crust will seal the seedlings in.
- Firm the surface lightly after covering so seed and moist soil are in contact for even emergence.
Keep moisture until emergence, then give light at once
- Water thoroughly once after sowing, then cover with straw or film to hold moisture and warmth.
- Uncover as soon as seedlings break through: temperature under film climbs fast and can cook them — a day late can ruin the sowing.
- After uncovering, water lightly; a heavy stream washes out seedlings whose roots have not gripped the soil yet.
Sowed too thick — transplant or not?
- Thick sowing plus planned transplanting works, but move them at 2-3 true leaves; older seedlings lose roots and recover slowly.
- If you will not transplant, thin early: remove crowded, small, weak and diseased plants, in two or three passes.
- Water lightly after thinning to settle the roots; the thinnings are edible.
Three common mistakes
- Re-sowing immediately because the seed went on unevenly: bring up what has emerged and even it out by thinning instead.
- Assuming thicker covering is safer: for greens it is a leading cause of patchy emergence.
- Leaving the cover on too long: that is not warmth, that is steaming the seedlings.
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