I just acquired an idea from havenyt about the pot assembly that can be used to harvest potatoes many times from a single plant. Here is my version of double pot by using black builder buckets.
Step 1:
You need two buckets of same size so that they can be stacked together. By using a power saw cut the first bucket as shown in the pictures. so the sides becomes open. This will allow the potatoes to be harvested.
Step 2:
Drill some holes in the base of the same first bucket. place this bucket then in the second bucket and the assembly is done.
Step 3: fill the bucket with compost and sow your potatoes in it, or if you have pre-sown potato plant that is ready to replant.. put that in the center of bucket and fill the bucket all the way up...
Step 4: Water the plants well and then wait. please check with your potato variety to estimate the harvesting time.
Step 5: If you want to check that if there are some potatoes ready then lift the first bucket up by firmly holding the second bucket. Harvest any potatoes that are ready and leave others. The plant will hopefully set new potatoes also..