Many of our friends and family greatly enjoy eating the tasty and healthy fruit avocado, so we thought we’d share the method we were taught when we first asked one of them how to grow avocado from stones!
How to Grow Avocado from Stones: Materials
- Avocado stone
- Drinking glass
- Knife (clean and sharp)
- Pruning shears
- Toothpicks (four per stone, plastic or wooden)
How to Grow Avocado from Stones: Method
- Remove and clean the avocado stone – Carefully excise it and then wash off all the fruit debris. If any stubborn debris remains, soak it in water for a few minutes before scrubbing it away. Be careful not to damage the stone and be sure you don’t remove any of the stone’s brown skin (the seed’s cover).
- Which end is which? – Avocado stones range from the slightly oblong to the almost perfectly spherical. Whichever shape they take, they all have a ‘bottom’ (the flatter end, from which roots will form) and a ‘top’ (from which the seedling will grow). Find the bottom!
- Piercing the stone – Using four toothpicks (plastic or wooden), pierce them at a slightly downward angle into the stone, making certain to space them evenly around its circumference. Be sure to stick them in tightly, as they’ll be the supporting frame for the duration.
- Just add water – Fill a drinking glass almost to the top with water, placing the avocado stone so that it’s half-submerged, supported by the toothpicks. Place it somewhere with partial to full sun. Change the water regularly (most people do so every one to five days or so), so as to reduce the risk of contamination by bacteria, fungus or mould.
- Wait – It can take anywhere from two to ten weeks for your avocado stones to sprout, dependent on your local climate. First you’ll see that the top of the stone will start to dry out and crack, then it’s outer skin will start to slough away. The crack will soon reach right to the bottom of the stone and – eventually – a tiny new taproot will be visible. Provided you keep the taproot submerged in water at all times (it will die if not), it will continue to lengthen, until a small seedling will appear through the stone’s top.
- Encourage new growth – Once your plant is twenty centimetres or so high, encourage some new growth by cutting it back by five or ten centimetres.
- Pot the avocado plant on – Once the plant has grown back to around twenty centimetres, transplant it to a twenty centimetre container filled with rich humus soil. Leave the top half of the seed exposed and return the container to your sunny location.
- Water regularly – Apply frequent waterings, but watch for yellowing foliage, which can be a sign of over-watering. Keep the soil moist but not wet at all times.
- Pinch it – Once the stem is approximately thirty centimetres high, encourage it grow in a bushier habit by pinching out the top two sets of leaves. Every time the avocado plant grows another ten to fifteen centimetres, repeat the pinch on the two newest sets of top leaves.
There you have it, you’ve learned how to grow avocado from stones – a great excuse to eat some more of this great nutritious fruit!