try growing a sweet potato just …

Sweet potatoes can be grown in a jar that contains only water in it.  

Here, I have explained the conditions required and observations that were made when a sweet potato was made to grow in the above mentioned environment.

Sweet potatoes are dicotyledonous plants which belong to the morning glory family hence it requires more sun light and care like an Ivy plant.  

Step 1:

Fill a jar with water to two third of its portion and submerge a sweet potato in it.  

Step 2:

Two third of the Sweet potato must be kept submerged into the water. So use some tooth picks to impale the potato in order to hang the above stipulated portion of the potato to hang inside the water.

Step 3:  

Keep the setup under direct sunlight.

Observation:

You can witness some branches of vines sprouting out from the Potato within two or three weeks. Cut off the vines when they grow too long in order to get a bushy like appearance.