Ficus macrophylla is a massive evergreen tree native to the subtropical rainforests of eastern Australia. It produces one of the most imposing silhouettes of any landscape tree: a broad, spreading canopy supported by a deeply buttressed trunk and cascading aerial prop roots that thicken over decades. In zones 9b–11, it serves as a dramatic, long-lived specimen for parks, large estates, and wide boulevard plantings.
This species is hemiepiphytic by nature - wild seeds germinate in tree-canopy crevices and send roots to the ground - but in cultivation it grows conventionally from soil. It adapts to a range of well-drained soils, prefers full sun, and becomes moderately drought tolerant once established. Its lateral and surface root system is aggressive; site the tree a minimum of 15 m from buildings, paving, underground utilities, and drains. Preferred soil pH runs from about 5.5 to 7.5. Young trees benefit from consistent moisture and mulch applied to the drip line. The species tolerates brief frosts down to around -2 °C but prolonged freezes cause significant dieback.
The small figs, roughly 20–25 mm in diameter, are not cultivated for human consumption but are a critical food resource for fruit bats, pigeons, and many other wildlife species. In Hawaii and parts of coastal California, naturalized Moreton Bay figs have become significant components of urban forest ecology.
These dates are for Zone 6b. Enter your ZIP to time every job to your own frost dates.
- watch · Any time in fallCheck for fig-souring symptoms - off-smelling, fermenting fruit - during the fruiting period. Remove and dispose of affected figs promptly to reduce pathogen pressure.
- watch · Any time in fallInspect bark and the root crown for signs of Phytophthora root rot: dark, water-soaked lesions at the base of the trunk. Improve drainage and avoid overwatering if symptoms appear.
- sow · Any time in springPlant a container-grown specimen into prepared, well-drained soil after all frost risk has passed. Choose a site with at least 15 m clearance from structures, paving, and underground utilities.
- watch · Any time in springWater deeply once a week during the first two growing seasons to encourage deep root establishment. Reduce frequency once the tree shows vigorous new growth.
- watch · Any time in summerInspect foliage through the growing season for scale insects and associated sooty mold. Treat active scale with horticultural oil; wipe sooty mold from leaves to restore photosynthesis.
- watch · Any time in summerMonitor aerial root development each summer. Remove or redirect roots threatening hardscape or infrastructure while they are still young and manageable.
- cut · Any time in summerPrune young trees in late summer to establish a clear leader and remove crossing or inward-growing branches. Avoid heavy pruning of mature specimens.
Problems & troubleshooting
Common problems
Fig Endosepsis
Internal browning, softening, and souring of the fruit with little to no external sign in early stages. Cut fruit reveals a darkened, fermented, or foul-smelling interior. Caused by Fusarium moniliforme entering through the fruit's ostiole.
Remove and destroy all affected fruit immediately; do not compost. Harvest promptly as soon as fruit reaches full ripeness. Clear dropped fruit from beneath the tree regularly. The primary vector is the fig wasp, which is largely absent in zones 5–7, reducing transmission risk for northern plantings.
Fig Souring
Fruit softens prematurely from the inside and emits a fermented or vinegary odor. Internal flesh turns brown and watery. A pinkish or whitish ooze may appear at the ostiole. Affected fruit often drops before reaching full color.
Reduce irrigation as fruit nears maturity to limit moisture accumulation at the ostiole. Harvest promptly at peak ripeness and remove fallen or overripe fruit immediately. Control dried-fruit beetles and vinegar flies with yellow sticky traps and strict sanitation. Avoid overhead irrigation. Closed-eye cultivars such as Violette de Bordeaux have inherent resistance; maintain good ostiole closure by avoiding excessive nitrogen fertilization, which can cause oversized, more open fruit.
Phytophthora Root Rot
Wilting despite moist soil, yellowing leaves, stunted growth, and dark, decayed roots and crown tissue. Vines may collapse during hot weather.
Plant in well-draining soil and avoid waterlogging. Remove and destroy affected vines. Improve drainage with raised beds or amended soil and avoid overwatering.
Sooty Mold (Scale-Associated)
Black, powdery or crusty coating on upper leaf surfaces and stems. Affected leaves may yellow and drop in severe cases. The mold grows on honeydew secreted by scale insects, mealybugs, or aphids feeding on the plant.
Control the underlying pest infestation first using horticultural oil or neem oil applied thoroughly to stems and leaf undersides. Once pest populations are reduced, sooty mold stops spreading and weathers away over time. Rinse foliage with a strong stream of water to dislodge existing mold deposits.
Fungal leaf spot
Brown or purplish spots on the leaves, often ringed with a yellow halo, that spread and merge in warm, humid, or wet weather; heavily spotted leaves yellow and drop early.
Pick off spotted leaves and clear fallen debris to remove overwintering spores. Improve air circulation by thinning, and water at the base so foliage dries quickly. If it persists, apply a copper- or sulfur-based fungicide at the first sign.