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DIY Drip Irrigation System, Made from Plastic Bottles- The 'system' is super simple. All we have to do is grab some 2-liter plastic bottles, punch 2 holes into the sides and 2 into the bottom, and plant said bottles next to our plants. Fill them with water and our plants will get that slow watering they prefer. For more information about the project, visit Fine Craft Guild.
Cut the bottom off a plastic pot to contain invasive plants & bury in the ground. Works great for containing plants that tend to spread, and for planting a plant in an area that tends to get filled with roots etc. from other plants.
Planting tomato plants on their side encourages a good root system. :)