They say that necessity is the mother of invention, and this mobile garden system fits that description! Created for a friend who knew that she would be moving at least three times within a year, the system worked to grow abundant food for her family, and she didn't have to leave it behind when they changed residences.
How can you tell if a bucket is food grade or not? Check the recycling symbol on the bottom. If the number stamped inside the triangle of arrows is 1,2 4 or 5, the bucket is food safe. For more information, read How to Identify Food Grade Buckets on WikiHow.
Next, we filled the buckets with potting soil, and added equal parts vermiculite and perlite to help with drainage and moisture retention.
Finally, we planted tomatoes, herbs and zucchinis. Voila! She had an instant garden that was completely portable.
To learn more about container gardening, including info about perlite and vermiculite, read Successful Container Gardening, part 1.
When selecting a potting soil and soil amendments, I recommend organics that do not contain chemical and synthetic fertilizers or fillers.
Homemade or organic compost can be substituted for the potting soil, if you prefer.