Can I convert traditional pots into self-watering systems?
Written by
Nguyen Minh
Reviewed by
Prof. Samuel Fitzgerald, Ph.D.It's necessary to utilize particular items to ensure they work properly when turning everyday pots or ordinary pots into self-watering systems. Fortunately, with a little planning and the use of readily available inner components, you can create some effective DIY self-watering pots. This conversion saves costs and provides an additional layer of convenience. I personally converted two clay pots into basic self-watering pots using these methods. Ensuring the inner construction is built properly prevents overwatering and maintains a consistent moisture level.
Water Reservoir Creation
- Use inner plastic containers fitting inside decorative pots
- Seal drainage holes with waterproof silicone
- Maintain 2-3 inch water storage capacity minimum
- Test reservoirs for leaks before adding plants
Capillary Wicking System
- Cotton rope wicks draw water upward effectively
- Nylon cords work for wider soil contact
- Install multiple wicks for larger containers
- Ensure wicks reach reservoir bottom completely
Soil Support Platform
- Perforated plastic sheets separate soil from water
- Use landscape fabric preventing soil fall-through
- Elevator bolts create adjustable height supports
- Maintain air gap preventing root rot
Overflow systems prevent water from flooding converted vessels. Holes should be drilled at a safe water level, not exceeding the maximum allowable depth. Position the holes slightly (1-2 centimeters) below the height of the soil's platform. This can be done with a length of wood/board, or simply with your finger. Add mesh covers to prevent soil blockage. These features function effectively in mimicking the designs of commercial, self-watering pots.
Insert refill tubes for easy access to the reservoir. Use PVC pipes to allow a vertical extension above the soil level. Place the tubes near container edges where roots will not be an issue. Ensure that removable caps are added to the ends of the pipes to prevent debris from entering. My tomato pots only need to be refilled every 10 days.
Preparation of the soil ensures the soil has the appropriate wicking action. Utilize the mixes, including perlite or any other moisture-retaining mixes. Avoid using heavy garden soil to prevent clogging the systems designed for wicking abilities. Pre-wet the soil to help create established capillary flow before planting. Following these steps establishes an efficient flow of water upwards.
Before leaving plants unattended, assess their effectiveness in converting water into moisture. Use a moisture meter to gauge the soil moisture daily for a period of one week. Look for moisture and moisture saturation in your wicks and root growth. Adjust the wicks according to the amount of water your plants require. All of these experiments will keep your plants from dying when you're on vacation.
Repurposed containers offer extraordinary cost savings compared to the commercial pots required. My DIY systems are only a third of the cost of the ones you purchase. It also recycles existing planters and keeps items out of the waste stream. These DIY projects provide self-watering technology for all gardeners.
Read the full article: 7 Essential Self Watering Pots Insights
