Everything GardeningRotoplast & Self Watering Planter Systems

Hello x s,
I guess I was to poor to know the difference. I have always lived off my garden and fruit trees. Even today we have a 20×20 feet garden. We buy no vegetables or fruits (except watermelons) from the grocery stores. I can taste the chemicals farmers use on their vegetables they sell in grocery stores. A person could easily live off of a 10×10 feet (no melons) garden.
We give alway more vegetables and fruits than we can eat. This year we canned over 30 quart jars of tomatoes. Each Christmas, our relatives and friends will receive a big basket as a gift. Inside is a red and white checked table cloth, 1 quart jar mixed yellow and red tomatoes, 1 quart jar pickled beets, 1 quart jar pickled green cherry tomatoes, 1 quart jar carrots, 1 quart jar plum jam, 5 Ruby Red Gradefruit, 10 lemons, a bag of dried figs, and 15 Mandarin Oranges. They love us at Christmas. I also have nine rare fruit trees.
In order to live all year round, you would need to live in a place like Southern California. Today my garden still has tomatoes, green beans, garlic, onions, eggplants, brussel sprouts, and bell peppers.
You would need good soil. I use no chemicals or pesticides. I use home made compost and chicken manure to enrich my soil. Good soil produces twice the yields of bad soil.
If you wanted a variety all year long, you would have to learn to can your vegetables and fruits. We have enough canned vegetables to last us all winter.
Your question: A 10×10 feet garden is more than enough area. If you want four (4) dwaft fruit trees, than you would need a 20×20 feet area.
I have been a gardener for sixty (60) years. I love to help new gardeners get started. Just like my uncle helped me get started in the hills of Kentucky at the age (smile) of three. I helped.
You have a great day, from Los Angeles.

gat a green house(big) most things can grow in there all year round!
hope it helps!