Buying seedlings is easy but limiting and pricey. Starting your own seeds costs pennies, opens up hundreds of varieties, and gives a community garden a head start on the season. It's simpler than it looks.
What you need
- ›Seed-starting mix (light and sterile — not garden soil).
- ›Cells, trays, or clean recycled containers with drainage.
- ›A bright window or, better, an inexpensive grow light.
- ›Warmth for germination and labels so you remember what's what.
The basic steps
Fill cells with moist mix, plant seeds at the depth on the packet (a common rule: twice the seed's diameter), keep warm and moist until they sprout, then give them strong light immediately so they don't get leggy.
Timing
Count back from your last frost date. Tomatoes and peppers usually start 6–8 weeks before; brassicas 4–6 weeks; fast crops like squash just 2–3 weeks. Your Cooperative Extension has local dates.
Grow strong, then harden off
Thin to the strongest seedling per cell, feed lightly once true leaves appear, and — crucially — harden off before transplanting: over a week, gradually expose plants to outdoor sun and wind so they don't get shocked.
A great community-garden project
A seed-starting station is a wonderful shared project — one member with a sunny window or a light shelf can start transplants for the whole garden. Pair it with companion planting to plan the beds.
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