Starting vegetables from seed costs a fraction of buying young plants, and it opens up hundreds of varieties you'll never find at a garden centre. It's also genuinely easy once you understand the few things that actually matter. Here's the no-nonsense version.
Step 1: pick the right spot
Most vegetables want 6–8 hours of direct sun and reasonably free-draining soil. Watch your garden for a day and pick the sunniest, most sheltered patch you've got. If you're short on ground or sun, a couple of large containers or a raised bed on a sunny patio works fine — don't let "I don't have a proper plot" stop you.
Step 2: start with crops that want you to succeed
For a first year, grow things that germinate readily and shrug off mistakes:
- Fast and forgiving: lettuce, radishes, spinach.
- Easy and productive: bush beans, peas, zucchini, kale.
- The satisfying classic: tomatoes (started indoors).
Save the temperamental crops (celery, cauliflower, carrots in containers) for once you've got a season under your belt.
Step 3: indoors or direct-sown?
This is the one distinction that trips people up:
- Start indoors (6–8 weeks before your last frost) the warm-season crops that need a head start: tomatoes, peppers, aubergines, zucchini.
- Direct-sow outside the crops that grow fast or hate root disturbance: lettuce, radish, beans, peas, carrots, beetroot.
Your last frost date is the anchor for all of it — look it up for your area and count backwards from there. Seed packets give you the timing relative to that date.
Step 4: sow seeds properly
- Use a proper seed-starting mix, not garden soil (too heavy) or rich potting compost (too strong for tiny roots).
- Sow depth: the rule of thumb is about twice the seed's diameter. Tiny seeds barely get covered; big beans go an inch or so down. Sowing too deep is a top reason seeds never appear.
- Keep the mix moist but not soaking, and warm. A sunny spot or a heat mat speeds germination.
Step 5: give seedlings serious light
Once they sprout, light is everything. A windowsill is usually not bright enough, which gives you those tall, pale, floppy "leggy" seedlings that flop over. An inexpensive grow light a few inches above them — or your brightest possible window — produces short, sturdy plants. A small fan or just brushing them with your hand each day thickens the stems too.
Step 6: harden off before planting out
The step beginners skip and regret. Indoor seedlings have never felt real wind or full sun. Over 7–10 days, put them outside for a couple of hours and build up to a full day before transplanting. This "hardening off" prevents the transplant shock that can stall or kill an otherwise healthy seedling.
Step 7: transplant and keep it watered
Plant out after your last frost, water them in well, and keep the soil consistently moist while they establish — deep, less-frequent watering beats a daily splash. Mulch helps hold moisture and keeps weeds down.
The five mistakes to avoid
- Sowing too deep — seeds rot or never surface.
- Too little light — leggy seedlings.
- Skipping hardening off — transplant shock.
- Starting too early — leggy, pot-bound plants waiting on frost.
- Overwatering — damping-off (seedlings collapse at the soil line).
Get those right and the rest is just watering and waiting. Start small, grow what you'll actually eat, and you'll be hooked by the first harvest.