How to Grow Olive Tree Frantoio

Young tree develops main framework with sturdy branches and deep root system. Canopy is sparse; limited fruiting.

Water regularly during first two years to establish roots. Remove competing central leaders and lower branches. Stake if necessary. Avoid heavy pruning.

Rapid shoot extension and canopy filling-out. Tree reaches intended shape. Limited flowering may occur but fruit set is light.

Continue pruning to shape open vase or multi-trunk form. Thin crowded branches for light penetration. Water during dry spells. Fertilize sparingly with balanced NPK.

Small, creamy white flowers appear on previous year's growth in early spring. Tiny green fruit develops from pollinated flowers.

Ensure adequate chilling hours (200-400 hours below 45°F) for flower induction. Frantoio is largely self-fertile but cross-pollination with Arbequina or Leccino increases yield. Provide supplemental water during fruit set.

Olives swell and transition from green to dark purple-black as they mature and accumulate oils (August-November depending on region).

Thin fruit clusters if fruit load is excessive (alternate year bearing risk). Water consistently to prevent fruit drop. Monitor for pests and diseases. Cease nitrogen fertilizing in late summer.

Olives reach full color and oil content; tree slows growth. Foliage may show some senescence in cooler regions.

Harvest when olives are fully black (optimal oil quality and yield). Use mechanical harvesters or hand-pick. Minimal water needed in dormant period. No pruning during or immediately after heavy harvest.