How to Cultivate an Avocado Seed in a Plastic Bag

Quck answer

To grow an avocado seed in a plastic bag, follow these steps:

1. Remove the seed from the avocado and clean it gently to remove any remaining fruit.

2. Insert three toothpicks into the sides of the seed, about halfway down.

3. Fill a plastic bag halfway with water and place the seed, pointed end down, on top of the bag.

4. Hang the bag in a warm and sunny spot, making sure the bottom of the seed is submerged in water.

5. Check the water level regularly and refill if necessary.

6. After a few weeks, roots and a stem will start to grow.

7. Once the stem reaches about 6 inches, trim it back to encourage more growth.

8. Transplant the avocado seedling into a pot with soil when it has a few sets of leaves.

9. Continue to care for the plant by watering it regularly and providing enough sunlight.

Growing an avocado seed in a plastic bag is a simple and fun way to start your own avocado tree at home.


Avocado is rich in nutrients and avocado trees make fascinating and lush indoor plants. A plastic bag is an efficient growing medium for avocado seeds. Slow to reach maturity, often requiring 10 years or more, your indoor avocado may never reach adulthood and produce fruit. However, it will grow into an attractive plant that is easy to start.

Prepare Avocado Seeds

Step 1

Select four intact and unblemished avocado seeds. You will likely use them after removing the avocado flesh, so be cautious when extracting the seeds to avoid accidentally cutting or puncturing them.

Step 2

Gently clean the seeds in warm water.

Step 3

Allow the washed seeds to dry.

Step 4

Place the clean seeds on a sunny windowsill to cure for a couple of days.

Step 5

Inspect the seeds after curing and discard any that have black spots or deep creases.

Prepare your Avocado Bag

Step 1

Select a bag that is large enough to hold the seeds with at least five inches of space above them for air circulation.

Step 2

Take a piece of paper towel for each seed and saturate it with warm water.

Step 3

Wrap each seed completely in a paper towel.

Step 4

Place the wrapped seeds evenly at the bottom of the plastic bag.

Step 5

Avoid inflating the plastic bag. It should not resemble a balloon.

Step 6

Seal the plastic bag.

Step 7

Put the plastic bag in a sunny location that does not receive direct sunlight. In spring or summer, you can tape it to a windowpane to keep the bag upright and out of the way.

Check your Avocado Seeds as They Develop

Step 1

Regularly check the paper towels surrounding the avocado seeds to ensure they remain moist at all times.

Step 2

Add water to the paper towels as they dry out, but avoid adding so much water that it starts to accumulate at the bottom of the bag.

Step 3

Check the air inside the bag to ensure it smells fresh and not moldy. If you detect a stale smell, replace the paper towels, rinse the seeds, and place them in a new bag.

Step 4

Checking the bag once a week should be sufficient. After four to six weeks, you will start to see roots emerging from the paper towels.

Step 5

Allow the roots to grow in the humid environment of the bag for two to three weeks. During this time, keep the paper towels in the bag and follow the same watering routine.

Planting Avocado Seeds

Step 1

Once the roots have emerged and had a couple of weeks to grow, transfer your avocado seeds to a 6-inch pot. Use one pot for four seeds.

Step 2

Fill the pot with potting soil, leaving an inch of space from the rim, and bury the seeds with the roots facing downward.

Step 3

Evenly space the seeds around the pot.

Step 4

Water the seeds and firmly secure them in place.

Step 5

Put the pot in a warm and well-lit spot close to a window that is oriented towards the south or west.

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