From the page: Plastic containers full of possibility
Idea 6
Self-watering planter
The self-watering pot is an elegant invention: the plant drinks what it needs through capillarity — the same force that makes coffee rise up a paper towel touching water. Water is stored at the bottom and rises through the soil little by little, so the plant never goes thirsty nor drowns. This system allows watering once a week or less, perfect for those who travel or forget.
What you need
- 1 large container without a lid (the reservoir)
- 1 smaller container that fits inside (the pot)
- Cotton wick, fabric cord or strips of an old t-shirt
- Soil and a seedling
- Heated nail
How to make it
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1
Pierce the bottom of the smaller container with about 4 small holes — the wicks will pass through them, not the soil.
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2
Thread two or three strips of fabric through the holes, leaving long ends hanging down 10 cm — they will be the "artificial roots" that pull the water up.
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3
Fill the smaller container with soil, plant the seedling and water from the top for the first time, to settle everything.
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4
Pour water into the large container and fit the smaller one inside, with the ends of the wicks submerged in the water.
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5
Check the reservoir water level every week and top up when it's low.
Finishing touches
A 2-liter ice cream tub on the bottom and a 1-liter tub on top form the classic pair. Cherry tomatoes and ornamental peppers love this system.
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