Contents
Today we will look into using SAP for vacation watering, which is an awesome scientifically proven method to reduce your watering frequency for your plants from daily to once in a week by using just 1 teaspoon of SAP around your potted plants or even ground plants. Will demonstrate you how to use it and check the moisture levels using a moisture testing tool from Day 1 to Day 7 and also discuss some science behind all this.
Why SAP for Vacation Watering?
What we are essentially doing is creating mini water reservoirs or storage houses for your plants. These reservoirs provide a stable supply of water and nutrients, increasing the soil’s water-holding capacity by 500 to 1000 times. This method is particularly useful in drought-prone areas or during water shortages. It helps conserve water, saves time and manpower, and reduces the quantity and frequency of fertilizer application. This is especially handy during summer, water shortages, or vacations. Detailed research articles on this gardening idea are provided in the video description.
How to Perform This Hack
I am currently experimenting with this method and demonstrating how it works. I have taken two containers of identical size, soil, and plants of similar size. The watering requirements may vary based on plant species and size, so identical plants are used. One container is labeled as “T” (Test Plant) and the other as “C” (Control Plant). We will add the SAP substance to the Test container only. Both containers are watered once on Day 1, and moisture levels are checked daily or on alternate days.
Procedure for Adding SAP
- Preparation: If you are applying this to existing potted plants, dig out some holes around the plant. The depth should be about 3-4 inches, depending on the plant size and root system. Use a screwdriver or pipe to make 4-6 holes around the plant. For plants with larger water needs, dig deeper holes.
- Adding SAP: Add 1-2 grams of SAP material into each hole. One teaspoon is approximately 4-5 grams, so use about 1-2 grams per hole. Cover the holes with soil and add about half to 1 liter of water, depending on the container size. SAP is a fully biodegradable and non-toxic substance.
- Mixing with Soil: When repotting, mix 1-2 teaspoons of SAP into the potting mix. This results in a light, fluffy, aerated soil, which is beneficial for plant health. Avoid using SAP for succulents and similar plants.
Experiment Results
- Day 1: After adding SAP and watering, let it absorb for an hour. Measure moisture levels using a gadget that tests both pH and moisture. (The link to purchase this gadget is on my website www.gkvk.in). Note: This is not a promotional video; I only list items I have personally tested.
- Day 2: The moisture level in the Test Pot remains “WET,” while the Control Pot’s moisture level has decreased to “MOIST.”
- Day 3: The Test Pot still shows “WET,” while the Control Pot is “DRY,” indicating it needs watering immediately. Results may vary depending on climatic conditions.
- Day 5: The Test Pot shows a decrease in moisture but remains “MOIST” and can last for another day or two. You can water the plant or wait an additional 2 days. The hygroscopic crystals hold water and supply it to the plant for up to a week.
This method proves effective for reducing watering frequency and keeping plants healthy, especially during summer or vacations.
What is SAP?
SAP stands for Super Absorbent Polymer or hydrophilic/hygroscopic polymer chains. Also known as hydrogel, it is an eco-friendly, non-toxic, biodegradable material with exceptional water absorption and holding capacity, ranging from 100 to 1000 times its weight. Water beads or crystal balls are similar hygroscopic polymers, often sodium polyacrylate, used for the same purpose. In agriculture, SAP serves as a water reservoir within the soil, absorbing rainwater and releasing it during dry periods.
Cost and Availability
SAP is relatively inexpensive. I purchased 250 grams for about $4. It may be cheaper if bought in larger quantities.
Please Watch this video below showing How to use SAP for plants.
