Solanum lycopersicum (tomato) is a warm-season annual originating from Central and South America, now grown worldwide. Seeds require warm conditions and consistent moisture to germinate reliably.
Before sowing
No pre-treatment needed — sow directly.
Sowing
Substrate
potting soil or seed starting mix
Depth
0_5cm
Temperature
24°C
Moisture
media
Container
small containers with drainage, seed trays
What to expect
Step 1
Sow at 0_5cm · 24°C
Day 5–14
Seedlings emerge (~90%)
Tips
Use bottom heat/heating mat to maintain 75-85°F soil temperature. Keep soil moist but not waterlogged. Light is not required for germination but seedlings need bright light after emergence. Plant seeds 1/4 inch deep. Germination is typically quick and good under optimal warm conditions.
Sources: Seed Savers Exchange, PFAF Plant Database, Penn State Extension, Cooperative Extension Sacramento County, Epic Gardening, Horticulture research
