Burpee’s Big Boy is a long-time best seller with firm, smooth, red fruit, great flavor and excellent quality. Introduced in 1949, its incredible productivity and gorgeous, large (8- to 9-oz/226- to 255-g) scarlet fruit made it an instant hit. Foodies know Big Boy for its sweet, aromatic, melt-in-your-mouth juiciness. These tomatoes need at least one inch of water per week and prefer 6 hours or more of direct sun each day.. Mature Size: 4′-5′ x 2′-3′ after 3 months years. Full Sun (6+ Hours).