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Tomato Seed Germination: Light Determines Speed

My expertise is indoor houseplants; tomatoes need full sun. Germination and growth speed depend entirely on light intensity. Bright light = fast growth; low light = slow, leggy seedlings. For detailed seed-starting guides, see The Garden Helper, Green Dealer, or LJWorld gardening sections.

House Plants: Shriveled, Brown Tomato Leaves: Root Stress, Not Disease; Tomato Hornworms: Large but Harmless Caterpillars; Sunlight vs. Artificial Light for Plant Growth; Understanding Light Terms: Filtered vs. Partial Sun and Fluorescent Equivalents; Growing Tall Plants in a North-Facing Vaulted Room with Skylights; True Low-Light Houseplants: What Actually Survives in Dim Corners; Plants Declining After Move: Light Change, Not Repotting; Terrarium Plants: Selection and Lighting Guide; Office Plants for Low Light: Rhapis Palm, Janet Craig, Lisa Dracaena; Growing Tomatoes: America's Favorite Garden Vegetable

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