Tomato tomato Tomatoes are warm-season annuals grown in Sweden mainly under glass or in sheltered outdoor spots. There are two main habits: determinate (bush) types stop growing after a set number of trusses, stay compact (about 60–120 cm), and suit pots and small spaces; they need little pruning. Indeterminate (tall) types continue to grow and fruit over a long season (up to 2–3 m with support), often giving higher total yields but requiring regular pruning and staking. Outdoors, reliable harvests occur mainly in mild areas (roughly zones 1–3), while greenhouses or warm walls extend success through much of the country. Aim for steady warmth, strong light, and consistent moisture to prevent disorders like blossom end rot and fruit cracking. Growing conditions LightFull sun (at least 8 hours of direct light; warmer, sheltered microclimate preferred outdoors). Soil typeDeep, fertile, well-drained loam enriched with plenty of mature compost; good structure with high organic matter. Avoid waterlogging. Water requirementEven, regular moisture; 20–30 mm per week, more during hot spells. Water the soil, not the leaves. Nutrient requirementHigh. Pre-enrich soil with compost, then feed with organic tomato fertilizer rich in potassium once flowering begins; moderate nitrogen early, low nitrogen later. Ensure adequate calcium and magnesium. Back to plant list
