Seed Bundle, All Seeds, 16 Packs Rooted Promise Stellantis Says New Models Create 'Meaningful' Opportunities for Idled Brampton Plant EV File:Differences between simple animal and plant cells (en).svg Wikimedia Commons If your tomato plants are big and leafy but not producing, fertilizer might be the reason., Too much nitrogen encourages leafy growth but once tomatoes start flowering, they need a different balance.,