This mini greenhouse is perfect for winter conditions, or protection from pests for the seedling to truly establish itself. Beans would also benefit from such a structure as it's advised not to water the seed until their sprouts show themselves above the soil, and if you have other plants in the same bed that require watering, this handy construction saves you the timely hassle of precision watering.
I believe it was Bill Mollison in one of his recorded lectures said that all vines with edible fruit originate from water edges and the easiest way to harvest is in a canoe :)
Got raised beds with a path in between? Use curved steel mesh with each side in the closest sides of two beds to act as a trellis for vine plants, like beans and make a tunel over the path. Beans are ideal to grow in the garden as they are leguminous, which means they fix nitrogen from the air into the soil, which directly benefit neighbouring, nitrogen-hungry plants like cabbages and other leafy plants. If you decide to go with beans, plant the bean into the soil, give it a generous watering, then don't water it again until it peeps its shoot out of the soil. You can prevent the rain from watering it, or manually water nearby plants until the shoot appears by covering it with a bottle cut in half.
It appears to be pretty easy to make a bag. Rather than providing free advertising for supermarkets, how about a recycled tie-dyed bag?
