🌿 Tomato

Fertile, deep, well-drained soil rich in organic matter (incorporate compost or well-decomposed manure before planting). Maintain regular humidity, but avoid waterlogged or compacted soils; improve drainage/aeration with compost (or grow in raised beds if soils are heavy). Optimum pH: slightly acidic to neutral, around 6.0-6.8 (up to ~7.0 acceptable).

Sow seeds indoors 6-8 weeks before last expected frost. Sow to a depth of 3-6 mm in sterile seed-starting mix; keep evenly moist and warm (approx. 21-27°C / 70-80°F) until germination. Provide strong light after emergence and repot once seedlings have true leaves. Soak them for 7-10 days, then transplant them outdoors only when all risk of frost has passed and nights are consistently above around 10°C (50°F). Place plants in full sun in fertile, well-drained soil. Plant deeply: bury the stem up to the first leaves to multiply the roots and obtain a more robust plant. Space plants about 45-60 cm (18-24 in) apart with 75-90 cm (30-36 in) between rows, and provide staking/framing to support growth.

Tomatoes grow best in fertile, well-drained soil rich in organic matter. Before planting, incorporate 2-4 inches (5-10 cm) of finished compost and, if necessary, a balanced pre-planting fertilizer (avoid heavy nitrogen). At the time of transplanting, use little or no additional fertilizer if the bed has been amended; an early excess of nitrogen favors foliage at the expense of roots and delays flowering. Once plants are established and starting to grow vigorously (around 2-3 weeks after transplanting), apply a modest amount of nitrogen (e.g. a light application of a balanced plant fertilizer). Apply the next lateral treatment at first flower/small fruit, and again every 3-4 weeks during harvest if growth slows or leaves are pale. Keep the fertilizer at a distance of 6-8 inches (15-20 cm) from the stems and water well. Choose products containing relatively less N and more K (and sufficient P) once flowering begins; avoid repeated applications of high N, which can reduce fruiting and increase cracking and limp growth. Maintain regular soil moisture to aid nutrient uptake and reduce blossom rot; don't rely on extra calcium fertilizer to correct blossom rot if watering is irregular. For containers, use a controlled-release fertilizer at planting or fertilize with a half-dose complete liquid fertilizer every 7-14 days after flowering begins, rinsing occasionally to avoid salt build-up.

Mulch tomatoes once the soil has warmed up and the plants are established. Apply a 5-8 cm layer of clean organic mulch (straw, shredded leaves, thin layers of untreated grass clippings or finished compost) to conserve moisture, suppress weeds and reduce soil splash that can spread disease. Keep the mulch a few centimetres away from the stem to prevent stem rot and allow air circulation. Replenish mulch as it decomposes; watch out for slugs and bugs in areas where mulch remains very wet. In cool climates, black plastic or landscape fabric can be used early to warm the soil, then covered with organic mulch later to control summer humidity.

Provide sturdy support right from planting: a 1.5-2.1 m stake, a spiral tomato stake or a trellis or twine system. Place the stake 8-10 cm from the stem and push it 30-45 cm into the soil. Tie the main stem to the support as it grows, using flexible string or tomato staples, making figure-of-8 ties and spacing them every 20-30 cm. Keep the ties adjustable and add new ones gradually to avoid damaging the stems; prune or shape 1-2 main stems if using a single stake or string.