Some Tips On Growing Your Avocado Tree
Reed and Hass are two popular varieties on the Sunshine Coast. The Garden Shed Nursery carries a stock of varieties well suited to the Sunshine Coast and Dave is always ready to answer your questions at the nursery.
1. September/October is an ideal time to plant avocados before the hot summer sets in. In frost-free areas, April/May is also a good time to plant new trees so they can become established during the cooler months.
2. Avocado trees do well in the sub-tropical climate of the Sunshine Coast. Mature trees will survive some frost in winter and the heat of our summer months. A period of cool weather for about 4 weeks in autumn/winter is needed for the flowers to set.
3. Where possible try to plant in an area protected from the strong prevailing winds. This will help protect against branches breaking off and fruit being damaged.
4. Soil and drainage is a key factor for success with avocados. Root rot is a major problem in poorly drained soils. In high rainfall areas avocados require at least 1.5 metres of well-drained soil. In areas of lower rainfall at least 1 metre of well-drained soil is recommended.
5. A gentle slope helps provide good drainage for avocado trees. On flat land where drainage could be a problem, planting in a low mound can help drain excess water away from the root area.
6. Here are some notes on fertilising avocado trees from the Queensland Agriculture department.
"You should pay particular attention to levels of:
Nitrogen encourages tree growth and canopy health. Boron is important to add before and during flowering for fruit set, calcium is important for fruit quality and zinc is an important trace element that is often deficient or unavailable in Queensland soils. Soil pH (measured in water) of about 5.5 is considered best but this level is impractical to reach in calcareous soils. Trees can grow successfully in pHs of up to about 7.5, although iron chlorosis can be an issue."
7. Avoid planting new trees into fresh manures or fertilisers to prevent damage to the roots at this early stage. The Garden Shed Nursery has a range of organic fertilisers and composts that are suited to successfully establishing and growing your avocado trees.