Light Requirements: Ficus altissima thrives in bright, indirect light. It can tolerate some direct morning sun, but strong afternoon sun may scorch the leaves. Consistent bright light helps maintain strong growth and good leaf variegation in cultivated forms.
Watering Needs: Allow the top 1–2 inches of soil to dry out between waterings. Water thoroughly, then let excess drain completely. It prefers a moderate, consistent watering rhythm and is sensitive to both overwatering and prolonged dryness. Reduce watering in cooler months when growth slows.
Soil Preference: Use a well-draining indoor potting mix with good aeration. A standard houseplant mix amended with perlite or bark helps prevent compaction and supports healthy root development.
How to Fertilize: Feed during spring and summer with a balanced liquid fertilizer every 2–4 weeks at diluted strength. Reduce feeding in fall and winter.
Hardiness Zone: Suitable for USDA Hardiness Zones 10–12. Typically grown indoors in most climates or outdoors in warm, frost-free regions.
Pet Safety: Considered toxic to cats and dogs if ingested, as it contains irritating sap.
Additional Care Tips: Ficus altissima is sensitive to environmental changes and may drop leaves when moved or exposed to drafts or sudden shifts in light. Once acclimated, it becomes much more stable. Wiping leaves occasionally helps maintain health and improves light absorption.
