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pH: 6.0–6.8  ·  Rich, well-drained, warm; add calcium to prevent blossom-end rot

Balanced at planting; high K and P at fruiting; calcium important

Tomato is a warm-season fruiting plant grown for its flavorful, nutritious fruits used in countless culinary applications from salads to sauces. Gardeners grow tomatoes because homegrown varieties far surpass supermarket tomatoes in taste and freshness, plus they're highly productive from a small garden space.

Tomato seeds need warm soil between 70–80°F to germinate reliably in 5–10 days; they will sprout slower or fail below 60°F. Sow seeds indoors 6–8 weeks before your last frost date. Seeds prefer light for germination, so sow them on the soil surface or just barely cover them. No pre-treatment is needed, though soaking seeds for 1–2 hours can slightly speed germination.

Start seeds indoors in trays or pots in late winter, keeping soil consistently moist and warm. Transplant seedlings to larger pots when they develop their first true leaves, and bury the stem deeper each time to encourage strong roots. Harden off seedlings over 7–10 days before moving them outside after all frost danger has passed and nighttime temperatures stay above 50°F. Plant seedlings 24–36 inches apart in full sun (6–8 hours minimum), burying the stem up to the lowest leaves; tomatoes can root along buried stem sections.

Water deeply and consistently, aiming for 1–2 inches per week; inconsistent watering causes problems like cracking and blossom end rot. Fertilize every 2–3 weeks with balanced fertilizer or compost once plants are established and flowering. Stake, cage, or trellis plants to keep fruit off the ground and improve air circulation, which reduces disease. Watch for common pests like hornworms and spider mites, and diseases like early blight and powdery mildew; remove affected leaves promptly, avoid overhead watering, and ensure good spacing.

Pick tomatoes when they reach full color but are still slightly firm; they'll continue to ripen off the vine if needed. Harvest regularly to encourage more fruit production. Store at room temperature away from direct sunlight; never refrigerate until fully ripe, as cold damages flavor. Before the first frost, pick all remaining fruit, including green ones, which will ripen indoors on a windowsill.