Grafting potato and tomato is a smart gardening technique where you grow both crops in one plant. Tomato grows above the soil, and potato grows below the soil. I have tried this method in my garden, and with proper care, it works well and gives good results.
I come from a farming background and have been doing gardening for years. When I first heard about this method, I was excited to try it. After some trials and mistakes, I learned the right way. In this post, I am sharing my real experience in simple and easy language so you can also try it at home.
IN THIS ARTICLE
What is Potato-Tomato Grafting?
- It is called a Pomato plant
- Tomato plant is used as the top part (scion)
- Potato plant is used as the bottom part (rootstock)
- Both belong to the same family, so grafting is possible
Things You Will Need
- Healthy tomato plant (20–25 days old)
- Healthy potato plant (same thickness as tomato stem)
- Sharp blade or cutter
- Grafting tape or plastic strip
- Clip (optional)
- Clean hands (very important)
Best Time for Grafting
- Early morning or evening
- Weather should not be too hot
- Avoid rainy days
- Ideal temperature: 20–30°C
Step-by-Step Grafting Process
1. Choose Healthy Plants
- Select a strong tomato plant
- Select a healthy potato plant
- Both stems should be almost same thickness
- Avoid weak or diseased plants
2. Cut the Potato Plant (Rootstock)
- Cut the potato plant from the top
- Leave about 5–7 cm stem above soil
- Make a slant cut (angled cut) on the stem
From my experience: clean and smooth cut is very important. Rough cut can fail the graft.
3. Cut the Tomato Plant (Scion)
- Cut the tomato plant from the bottom
- Remove roots of tomato plant
- Make a matching slant cut on the stem
Tip: Both cuts should match perfectly so they join easily
4. Join Both Plants
- Place tomato stem on potato stem
- Match both cuts properly
- Make sure inner green parts touch each other
This is the most important step. If alignment is wrong, graft will fail.
5. Tie the Graft
- Use plastic tape or grafting tape
- Wrap tightly but not too tight
- You can use a small clip also
I use simple plastic strip, and it works fine
6. Provide Support
- Keep plant in shade for 4–5 days
- Avoid direct sunlight
- Keep soil slightly moist
Do not overwater, otherwise root may rot
7. Aftercare (Very Important)
- After 7–10 days, check the graft
- If it looks fresh and green, success
- Slowly expose to sunlight
- Remove extra shoots from potato plant
Only tomato part should grow above
Care Tips After Grafting
Watering
- Keep soil moist, not wet
- Water lightly
- Avoid water on graft joint
Sunlight
- First 5 days: shade
- After that: partial sunlight
- Then full sunlight after 10–12 days
Fertilizer
- Use light organic fertilizer
- Vermicompost works best
- Do not overfeed
Support
- Use stick to support plant
- Tomato grows upward, so support is needed
What Happens After Grafting?
- Tomato grows on top
- Potato grows under the soil
- Both crops grow from one plant
In my garden, I got small tomatoes first, and later potatoes formed underground
Common Mistakes to Avoid
- Using weak plants
- Wrong alignment of cuts
- Overwatering after grafting
- Keeping in direct sun immediately
- Loose tying of graft joint
My Personal Experience
When I first tried this, my first graft failed because I did not align the cuts properly. The second time, I followed the correct method and kept the plant in shade for a few days. That time it worked.
I noticed:
- Tomato plant started growing after 1 week
- Leaves stayed fresh and green
- After 60–70 days, I checked soil and found potatoes forming
It was a very exciting moment for me because one plant gave two crops.
Advantages of Potato-Tomato Grafting
- Save space in garden
- Grow two vegetables in one plant
- Interesting experiment for gardeners
- Good for terrace gardening
Disadvantages
- Needs proper care
- Not always 100% successful
- Potato size may be smaller
Final Tips for Success
- Always use healthy plants
- Keep tools clean
- Do grafting in cool time
- Be patient and observe daily
Conclusion
Potato and tomato grafting is a simple but smart gardening trick. With the right method and little patience, you can grow both crops in one plant. From my personal experience, this method works well if you follow the steps carefully.
If you love gardening and want to try something new, you should definitely try this Pomato grafting at home. It is fun, useful, and very satisfying when you see results.