The Roblox "Grow a Garden" event typically features collectible Summer Eggs hidden throughout various games on the platform. These eggs are often uniquely designed and themed around summer elements like sunshine, flowers, or aquatic life. Players must explore different Roblox experiences to find and collect these eggs, usually by completing tasks, solving puzzles, or simply discovering their hidden locations. Collecting all the eggs often unlocks exclusive in-game items, badges, or other rewards, encouraging players to participate and engage with different Roblox games during the summer season.