Magic Bean

In Ocarina of Time, Magic Beans can be purchased from a man sitting near the Zora's River who seems to be constantly eating. The price of the beans increase by 10 Rupees every time Link buys one. They can be used by planting them in mounds of soft soil which are located all over Hyrule. After seven years, and they should turn into platforms which will grant Link access to certain areas otherwise impossible to reach.

These also make an appearance in Majora's Mask, but this time around they only take a bottle of water for them to fully grow. However, once Link obtains the Song of Storms at the Ikana Graveyard, he can use it to water the plant and cause it to sprout. Similarly, planting beans while it is raining during the Second Day will cause them to sprout immediately. This only works in places where it is actually raining, though, which is mostly just Termina Field.

Tips
Even though planting Magic Beans in soil will help gain access to different areas, there is another use for the soil. Link should bottle some Bugs and drop them into the soil. This will result in a Gold Skulltula jumping out. This can be done even after a bean is planted.

Here are the locations of soil Link can plant magic beans in Ocarina of Time:
 * 1) Right next to the magic bean salesman.
 * 2) In the Lost Woods, in the area with the bridge connecting Kokiri Forest and Hyrule Field.
 * 3) Again in the Lost Woods, near the area with the Forest Stage.
 * 4) In Kokiri Forest near the shop.
 * 5) Right next to the warp platform in the Death Mountain crater.
 * 6) At the bottom of Gerudo Valley on the small cliff next to the cow.
 * 7) Outside the Lakeside Laboratory in Lake Hylia.
 * 8) Next to the entrance to Dodongo's Cavern
 * 9) Next to the entrance of the Spirit Temple
 * 10) In the Kakariko Graveyard