Answer: Your Australian Tree Fern prefers full sun exposure in your cool-summer growing region. The browning fronds might indicate that conditions are too shady for it. The trees require moist but well-draining soil, and it's always important to water thoroughly each time you apply water so the entire root mass gets wet. Sprinkling a little every few days will not supply enough water to the roots of your plant. Build a basin around the base of your tree fern and flood the basin when you water. This will encourage the moisture to trickle down slowly and wet the entire root zone. You can do this once or twice a week, depending on weather. It isn't unusual for the lower, older fronds to die off, so if the browning is concentrated on the older fronds, it might be just a natural aging process. You can cut away the older fronds and new fronds will develop at the crown of the plant. Best wishes with your plant!
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