Now you can grow your own Amazing Crystal Garden. Add your own food coloring to create a Multi-Colored Garden Or create a monotone crystal garden. Simply place the crystal growing rocks into a shallow dish and pour vinegar over the rocks. Then wait for the magic crystals to grow. Within 2 days you should see growth begin. After 2 weeks growth should be complete. You can color your garden by applying food coloring to the vinegar during the last stages of growth. Your kit comes with several magic growing crystal rocks and complete instructions. You will need to provide your own Distilled White Vinegar, shallow dishes for growing your garden, and a drop of food coloring if you desire to grow colored crystals. Recommended for Ages 8+ with adult supervision.