Continue to water daily but do not completely saturate the soil. Water the newly transferred plant until the soil is quite moist, but avoid leaving it in standing water. New roots will form where the stem is buried and anchor the plant in the soil. Place the stem of the plant halfway down in the soil. Soak the root ball in water immediately before transplanting. Pick a cloudy day to move plants outdoors so the plants will not become water-stressed. Always wait until there is no chance of frost to plant outdoors. After two weeks of hardening, the plants may be transplanted into soil outdoors as long as the daytime temperature generally exceeds 15☌ and there is no danger of minimum temperatures below 5☌ at night.
Water the plants sparingly and do not apply fertilizer. Gradually lengthen the exposure time to several hours per day during a two-week period. Do not set the plants in direct sunlight or in a windy location during hardening. The first exposure should last approximately 15 minutes. After approximately six weeks of indoor growth, set the plants in pots or trays outdoors for a short period of time each day to acclimatize them to the cold, sunlight and wind. Tomato plants must undergo an acclimatization process called hardening (or cold hardening) before they can survive outdoors. When transplanting always handle the delicate seedlings with care. Bury the plant halfway up the stem and do not be concerned if bottom leaves become covered with soil. Leave the plants in the pellets to avoid disturbing the roots and soak the pellets before transplanting. For soil, it is best to use a good quality potting soil look for brand that contains peat moss and perlite. Ideally these should be 10 to 20 litre pots with good drainage. Growing Plants Indoors TransplantingĪfter several weeks of growth, plan to transfer the plants, including the peat pellets, to the final indoor containers.
If you and your students wish to extend the Tomatosphere™ program to include additional plant-based inquiries or if you plan to grow the tomato plants until they produce fruit, follow these transplanting and growing recommendations. Above Image: A row of tomato seedlings sprouting in a garden © YuriyS,
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