The Plantable Pencil The seed capsule, which contains high quality, untreated seeds, is water soluble, making the pencil easy to plant after use. Out of the pencil grow delicious fresh herbs, crispy vegetables or edible flowers. The Sprout Pencil is made of natural materials the body is cedar wood, while the lead is a mixture of clay and graphite, and therefore does not contain any lead Who can use the Sprout Pencil? People of any age can plant the Sprout Pencil and experience the joy of seeing it germinate. The home-grown herbs, vegetables or flowers can be used in cooking to give a dish the perfect taste. Each pack has 3 different varieties of seeds - Mint, Tomato and Sunflower What to do When the Sprout Pencil has become too short to write with, it is ready to be planted. Follow the simple instructions below and see your Sprout pencil sprout. We have chosen the seeds for our pencils with great care, and they germinate quickly i.e. within 1-3 weeks, depending on the seed variety. Most plants can be grown both indoors and outdoors.