How to Grow Avocado From Seed or a Grafted Tree in Australia

Updated October 2026

More fruit growing help: Backyard Fruit Trees in Australia, with the best fruit for each region and when to plant it.

Cross-pollination, container growing, and variety picks for every region

Avocados are one of Australia's most popular fruits, and growing your own is entirely possible in the right climate. A mature avocado tree produces hundreds of fruit per year. The challenge is patience: avocado trees take several years to start bearing, and they need warmth, good drainage, and protection from cold winds.

This guide covers the best varieties for home gardens, the cross-pollination puzzle, container growing options, and planting times by region.

What it looks like as it grows

🌱 Plant profile: Avocado, with sowing times for your region, companion plants and common pests.

When to Plant an Avocado Tree in Your Region

Avocado planting months vary more between regions than for most fruit trees, because young trees need to establish before frost or summer heat. These are the planting months for each region from our data. Each region links to its full vegetable planting calendar, and the Avocado plant page has spacing, companions and care notes for your region.

Best Avocado Varieties for Australia

How to Grow Avocado From Seed

Growing an avocado from seed is one of the most popular kitchen-bench projects there is, and it gives you an attractive plant. Go in with your eyes open, though: seed-grown trees take 7 to 15 years to fruit, if they fruit at all, and the fruit can be poor. If you want avocados to eat, plant a grafted tree, which fruits in 3 to 5 years. If you want to watch a seed grow, either method below works.

Growing an avocado seed in water

1. Wash the seed clean of any flesh and work out which end is which. The broader, flatter end is the base, where the roots grow, and the narrower end is the top, where the shoot appears.
2. Push three or four toothpicks into the sides of the seed around its middle, and rest them on the rim of a glass so the base sits in water and the top stays dry.
3. Stand the glass in a warm, bright spot out of direct sun, and change the water every few days so it stays clean.
4. Be patient. The seed splits, a root grows down and a shoot rises from the top, which can take several weeks. Our plant data gives a temperature range of 18 to 28°C, so a warm room speeds it up.
5. Once the roots are well developed and the stem has a few leaves, pot the seedling into free-draining potting mix with the top half of the seed above the surface.

Planting an avocado seed in soil

You can skip the glass and plant the seed straight into a pot of free-draining potting mix, base down, with the top third or so of the seed above the surface. Keep the mix lightly moist and the pot somewhere warm. It is less fun to watch than the glass method, but there is no transplant step.

Growing the seedling on

Keep a young avocado in bright light, water it when the top few centimetres of mix dry out, and never let it sit in water, because root rot is the biggest killer of avocados at every age. Pinching out the growing tip encourages a bushier plant. If you plant it out later, treat it like any avocado: full sun, deep free-draining soil, a raised mound if drainage is slow, and protection from frost while it is young.

Cross-Pollination: Type A and Type B

Avocado flowers have a unique system. Each tree produces flowers that are either Type A or Type B:

• Type A (Hass, Wurtz): Flowers open as female in the morning, close, then reopen as male the next afternoon.
• Type B (Shepard, Bacon, Fuerte): Flowers open as female in the afternoon, close, then reopen as male the next morning.

Planting one Type A and one Type B tree near each other greatly improves pollination and fruit set. A single tree will set some fruit on its own, but yields are much better with a pollination partner.

Planting a Grafted Avocado Tree

A grafted tree is the reliable way to eat your own avocados. Plant it in full sun in deep, free-draining soil, on a raised mound if your drainage is slow, and in a spot sheltered from strong wind. Mulch widely to keep the roots cool, keeping the mulch clear of the trunk. Water deeply and often, especially through summer, but never let the soil stay soggy. Feed several times through the growing season with a balanced fertiliser plus extra potassium and zinc.

The planting month depends on your region. Perth plants in autumn, or from late winter to early spring, and shades young trees from hot afternoon sun and wind and mulches the sand heavily. Adelaide plants in September and October on a raised mound in a warm, sheltered spot. Melbourne is marginal: wait until October, plant in a warm, north-facing position and use frost cloth while the tree is young. In the tropics, the dry season from May to September is the time to establish a tree. Pair a Type A and a Type B variety if you have room, for better fruit set.

Container Growing

Avocados can be grown in large containers, especially dwarf varieties like Wurtz. Container growing lets you move the tree to sheltered spots in cold weather and control soil drainage precisely.

• Use a pot at least 60 cm wide and deep with excellent drainage
• Premium potting mix with added perlite for drainage
• Water when the top 5 cm of mix dries out. Avocados hate waterlogged roots
• Feed every 6 weeks during the growing season with a citrus or general-purpose fertiliser
• Repot every 3 to 4 years, trimming roots by one-quarter

Container avocados will not produce as heavily as in-ground trees, but a well-managed Wurtz in a pot can produce 20 to 50 fruit per year once mature.

Harvesting Avocados

Avocados do not ripen on the tree, which surprises many first-time growers. Pick mature fruit once it has reached full size, then ripen it indoors on the bench. To check whether a tree is ready, pick one fruit and leave it inside: if it softens evenly, the rest are ready to pick as you need them. Clip the stalk with secateurs rather than pulling the fruit off. In our data the main picking season runs from March to July, and a mature tree can carry 50 to 200 fruit.

Common Problems

Phytophthora root rot

The most serious avocado disease. Caused by waterlogged soil and poor drainage. Leaves yellow, the tree declines, and roots rot. Prevention is the only real option: plant in very well-drained soil, on a mound if necessary, and never overwater.

Fruit drop

Avocados naturally drop a large proportion of their fruit. A healthy tree may set thousands of flowers and keep only 100 to 200 fruit. Some drop is normal. Excessive drop is caused by poor pollination, water stress, or nutrient deficiency.

Sunburn

Young avocado trees and exposed trunks can be badly sunburned. Paint exposed trunks with white water-based paint. Protect young trees with shade cloth for the first 2 to 3 years until the canopy provides its own shade.

Cold damage

Avocados are sensitive to frost, especially when young. Even Bacon variety can be damaged below minus 3 degrees. Protect young trees with frost cloth or hessian wraps when cold nights are forecast.

Frequently Asked Questions

See also: Avocados in the Plant Library

Related Guides

How to Grow Mangoes

How to Grow Lemons

Mulching Guide