Native to Australia, this sub-tropical evergreen tree has a very limited range in the continental United States.
Later, when mature, produce fewer flowers and less fruit.
If the soil in the area you plan to plant is too moist, mix in plenty of perlite.
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Ultimately the ideal soil for your tree should be rich, moist, and well-draining.
Growing a tree in a greenhouse will often require root pruning to turn it into a bonsai.
The macadamia can also grow well in California, Southern Texas, Florida, and the Gulf Coast.
It can thrive as long as the requirements of warm weather with a good amount of moisture are fulfilled.
Hawaiian Nut?
Hawaii is one of the few locations in the United States where macadamia trees can grow outdoors easily.
In fact, macadamia nuts are sometimes incorrectly called Hawaiian nuts.
Fertilizer
Annualfertilizingis only recommended once the tree reaches maturity.
Most often, this occurs within seven to ten years after planting.
Fertilizing with low nitrogen, phosphorous, and high potassium formula is best.
A 0-0-50NPK formulation, such as sulfate of potash, is a good suggestion.
Pruning
Naturally macadamia trees will have a vase-shaped crown.
This is perfect if you are using the tree ornamentally or for shade.
When pruning, use sharp, cleanpruning shears.
for do this, step away from the tree and imagine a cone around it.
Most macadamia trees used for crop production are grafted onto a cultivar selected for heartiness to serve as rootstock.
In taking a cutting, you lose the heartiness of the original rootstock.
If still inclined to propagate, the best method would be byair layering, though the process is advanced.
Fungus
Often brought on by wounds from weed whackers or improperly cleaned pruning tools.
The most common signs will be cankers or dark lesions.
Macadamia is most susceptible to Anthracnose andPhytophthora ramorum.
you could cut that time in half if you buy a plant that is on grafted rootstock.
The tallest macadamia trees can reach about 50 feet tall.
Macadamia trees are native to Australia and New Zealand but grow well in USDA zones 9-11.
