B2D Thanks so much for your garden update. My sense is that growing is for anyone interested, whether for need or enjoyment. I like that you have concentrated on small spaces, less resources, less time, cost and energy to produce. :thumbup:
I would be very interested in how the water/nutrients were delivered to the 2 x 2 in containers that produced so many cukes. So much from so little space saves resources, time and money.
Also, hope I read this correctly, the hanging squash - what container type and support system for the heavy fruiting plants?

I just now found your questions. The 2x2 containers (which are really just large black seedling starters, which you can find at most nurseries) sit in a larger container, which feeds the plants by the water seeping up inside the containers via a hole in the bottom (prevents powdery mildew). Cukes will grow more efficiently in a gallon container, but if you are limited in space and have a large number of plants...the seedling starters can work quite well. Also, I found that by allowing them to crawl up a stake or a post makes them grow more efficiently still.
The squash I have which ranges from winter to summer squash (butternut, patty-pan, and both crookneck and Dixie hybrid) I have grown in both sitting AND hanging containers. So far, though, the hanging containers (turvey tomato hangers) have beaten the half-gallon sitting containers by twice the amount of production. I only water the hanging plants so much as until a few drops of water fall (prevents powdery mildew). This also allows me to check the leaves for insect larvae, eggs, and the layers themselves. In each hanging container there are atleast three plants (in this they seem to shade one another, and I've yet to find a sun scalded fruit). The containers on the ground are fed by sitting the container in a slightly larger container. This also conserves water, which would be important if you say, relied on captured and stored rainwater for your garden.
Overall, it takes a minimum of water to feed the plants, but being a hot summer they have to be watered every other day it seems. I also use mulch around the base of the plant (or in the top of the hanger), to minimize water loss and keep heat around the roots. I feed them organic humus and compost, along with sometimes organic manure. Also, by using containers I've been able to grow fruits and vegetables without the need for pesticides. I've been able to keep them relatively pest-free due to the presence of spiders/ladybugs/manti, and I regularly check the leaves for eggs and the like. This also tends to keep rabbits, mice, rats, cutworms, slugs, and other pests well away.
I've also found that kiddie pools can prove to be a valuable gardening vessel. These can act like an inexpensive raised garden, so I may try to replicate the watering system with these. I believe if I were to use gravel or another material to separate two pools, but to allow water to reach the upper one inside the lower pool, that it may work. I'll have to try that soon.
I also find that planting in smaller spaces/containers allows plants to be started earlier, and kept alive longer by the use of cloches (which is like a mini greenhouse, and keeps the cold air/frost off of the seedlings/mature plants).
Next year I plan to plant Jerusalem artichoke, which is a heavy and tough spreading plant.