avocado It has established itself as one of the most popular fruits thanks to its numerous nutritional benefits, its versatility in the kitchen, and the rise of healthy eating. But when it comes to growing this fruit tree, one of the key questions arises: Is it necessary to plant two avocados together to harvest fruit? Below, we take an in-depth look at all the factors that influence avocado production, including pollination guidelines, which varieties to choose, and top tips for maximizing your harvest, whether you're growing in a garden or in a pot.
Why isn't planting just one avocado enough?
The avocado (Persea americana) is a tree monoecious and its flowering is a complex phenomenon. Although each flower contains male and female organs, the maturation process of these organs is separated in time. This is called protogynous dichogamy and causes the female part (stigma) and male part (anthers) of the same flower to not be mature at the same time, preventing natural self-fertilization and making cross-pollination essential.
The key to obtaining avocados lies in the presence of at least two trees of complementary flowering types (A and B) and preferably of different varieties. This interaction increases the likelihood of fertilization and, therefore, of obtaining quality fruit.
How pollination works in avocados
Pollination in avocados is a unique process. The flowers open twice, alternating their sexuality:
- Type A: The flowers open as female flowers in the morning and collect pollen. They then close and open again as male flowers the following afternoon.
- Type B: The flowers open in the male state in the morning and in the female state in the afternoon of the same day or the following day.
This difference in the alternation of flowering means that, if you have a type A avocado and a type B avocado together, the chances of cross-pollination are much greaterThe simultaneous presence of flowers in the receptive and pollen-producing phases allows for genetic exchange and fruit formation.
In fact, self-incompatibility between flowers of the same variety or tree prevents a single specimen from fertilizing itself, which reinforces the need to plant two avocados together of different types in the same space.
Avocado flower varieties and types: recommended combinations
- Avocado varieties: Hass, Lamb Hass, Carmen, Pinkerton, Reed.
- Types of avocado flowers: Zutano, Bacon, Fuerte, Ettinger.
To ensure a good harvest, Combine a type A and a type B in your plantation or gardenA classic example is planting a Hass (A) and a Bacon (B) tree next to each other. If you have limited space, opt for the most commercial and hardy varieties in your area.
A good strategy is to purchase a grafted avocado of a commercial variety and plant another one nearby, grown from seed (hybrid or border), since they tend to be excellent pollinators. This technique improves the genetic diversity, vigor and fruit quality.
When and how to plant two avocados together?
The best time to plant avocados is in spring, when the temperatures are mild and the risk of frost has passed. This way, the tree adapts better to transplanting and can develop its root system during the warm season.
The basic steps are:
- Choose a sunny location, protected from the wind and with good drainage.
- Prepare a large hole, at least three times the volume of the root ball.
- Plant two avocado trees (one type A and one type B) at a distance of 4 to 7 meters.
- Lightly compact the soil and water well after planting.
- Avoid over-fertilizing during the first few months.
Foundations for success: essential care for optimal avocado production
1. Climatic and soil conditions
The avocado is a tree of tropical and subtropical origin. Prefers mild temperatures and high humidity. It does not tolerate frost or cold winds well. Its roots are superficial and require loose, well-drained soil rich in organic matterIn dry climates, you'll need an efficient irrigation system (drip or micro-sprinkler) and protection from excessive sun and wind.
2. Irrigation and nutrition
There should be no shortage of water, but there should not be too much either.Excessive watering causes root suffocation and fungal diseases; drought limits growth and flowering. The key is to keep the soil moist, without flooding, adjusting the frequency according to the climate and time of year.
El nutrient supply It's crucial. Nitrogen is essential for growth, but calcium, potassium, iron, boron, zinc, and copper should also be provided, based on foliar and soil analysis. Use balanced fertilizers, preferably similar to those used for citrus fruits.
3. Pruning and training
An proper pruning From the beginning, it helps shape the tree and facilitates sun exposure and ventilation. The best time is after harvest or in spring-summer. Remove damaged branches and encourage an open structure. Residues can be shredded and returned to the soil as mulch, unless there are fungus, in which case it's best to remove them.
4. Pest and disease control
In regions where avocado is grown, it is essential to monitor the appearance of pests such as the crystal mite and diseases caused by fungi such as Phytophthora cinnamomiBiological control with auxiliary fauna is preferable to chemical treatments, as the latter can negatively affect pollinators and the biodiversity of the site.
Pollinators, environmental condition and management
Bees are the main pollinators of avocado, although other insects also contribute. It is recommended promote the presence of pollinators by planting honey-producing plants or avoiding pesticides during flowering.
Climate directly affects pollination. Temperatures close to 20°C and high humidity enhance the overlap of the fertile and male phases of the flower, increasing fruit set. Strong winds can make it difficult for pollinators to work., so it is important to create natural or artificial protection barriers in the plantation.
If you have limited space, you can plant two avocados in the same pot for the first few years, choosing compatible varieties and transplanting them to permanent soil when they reach a larger size.
How long does it take for a planted avocado to bear fruit?
La Patience is essential in avocado cultivation. An avocado grown from a seed can take between 5 and 10 years to bear fruit. However, if you use grafted trees, you can shorten this period to 3-4 years. Maintaining the tree's health and vigor during these years is vital to ensuring sustained, high-quality production.
Advanced recommendations to maximize production
- Always combine type A and B varieties to promote cross-pollination.
- Tree arrangement should optimize sun exposure, ventilation, and pollinator access.
- Use efficient irrigation techniques and organic fertilizers to improve soil health.
- Control nearby wild flora, as this may encourage beneficial insects, but initially prevent it from directly competing with young seedlings.
- Avoid the use of chemicals that can harm bees and other beneficial insects.
- Select rootstocks and varieties well adapted to your soil and climate conditions.
- Maintain good soil structure by oxygenating and adding organic matter.
Can I plant avocados in pots or small spaces?
Yes, avocados can be started in pots, either from seed or using grafted saplings. You should use a loose, sandy soil with excellent drainage, and select pots with efficient drainage systems. It's important to transplant them into the ground when the tree exceeds one meter in height, so that it grows healthily and produces fruit in the future.
Planting two trees together not only increases the probability of pollination, but, according to some studies and field experiences, it generates a positive competition effectBy growing close together, the trees tend to compete healthily for light and resources, which can stimulate more vigorous and healthy growth in both. Plus, by having two trees, if one becomes sick or fails to bear fruit, you'll always have a backup for your home production.
The avocado is native to Mexico and Central America and was known to pre-Columbian cultures long before its arrival in Europe. Today, there are multiple cultivated varieties and races adapted to different regions of the world.
In regions like Spain, especially in mild coastal climates, avocado cultivation has become a profitable alternative. Commercial varieties and new grafting and management techniques allow for harvests virtually year-round.
- Protect young trees from cold and wind using nets or natural barriers.
- In the early years, keep the base of the trunk free of weeds to avoid competition.
- Monitor the health of the tree and respond to the first signs of pests or diseases.
- You can use mulches to retain moisture and improve soil structure.
