Sowing Garden Seeds: Getting the Start Right
Sowing is deceptively simple — a seed, some soil, a little water. The details that separate a patchy row from a full one are worth knowing.
A seed is a complete plant in miniature, waiting for the right cue to wake. Your job when sowing is simply to give it the conditions it's expecting: the correct depth, steady moisture, and warmth. Get those three right and germination is remarkably reliable.
Depth is the mistake most people make
The old rule holds up well: plant a seed two to three times as deep as it is wide. Tiny seeds like lettuce or carrot barely need covering — a light scattering of soil is enough. Larger seeds like beans or squash go an inch or more down. Sow too deep and the seedling exhausts its energy before it reaches the light.
Direct sowing vs. starting indoors
- Direct sow hardy, fast crops that dislike being moved — beans, peas, carrots, radishes, and most greens. Wait until the soil has warmed; cold, wet soil rots seeds.
- Start indoors slow or tender crops — tomatoes, peppers, and many herbs — four to eight weeks before your last frost, then transplant once the weather settles.
Sowing in rows
Draw a shallow furrow with the edge of a hoe or a stick, water the furrow before sowing rather than after (this keeps small seeds from washing away), space the seeds, and cover lightly. Firm the soil gently so the seed makes contact — seeds need to touch moist soil to draw up water.
The critical first week
Seeds must stay consistently moist until they emerge. A single dry-out at the wrong moment can end germination. Water gently so you don't dislodge anything, and consider covering the bed with a light row cover to hold humidity.
Thin without regret
When seedlings come up in a crowd, thinning feels brutal but it's essential — crowded plants compete and all of them suffer. Snip the weaker ones at soil level with scissors rather than pulling, so you don't disturb the roots of the keepers. What's left will grow far stronger for the room.