Your olive tree sunlight requirements call for 6 to 8 hours of direct sun each day. Olives come from the sunny shores around the sea and they need bright light to thrive. Less sun means fewer olives and weaker growth over time.
The sun exposure for olive trees makes a huge difference in how much fruit you'll harvest. I tested this with two trees of the same variety in my yard. The one in full sun produced over three times more olives than its shaded twin. Both trees looked healthy but only one gave me a real crop.
Low light levels mess with your olive tree's ability to flower and set fruit. The tree makes fewer flowering hormones when it doesn't get enough sun. You'll see long stretchy branches with few leaves and almost no olives at all. This leggy growth wastes energy the tree should spend on fruit.
Pick a south-facing spot if you live in the Northern Hemisphere for the best sun exposure for olive trees. This direction catches the most light throughout the year. East-facing locations get morning sun which is good but miss the hot afternoon rays. West-facing spots work better than north ones but can bake trees in summer heat.
Indoor growing changes the olive tree light needs in big ways. Windows filter out some of the sun's energy even when they face south. Place your indoor olive right next to the brightest window you have. Rotate the pot every few weeks so all sides get equal light.
You can boost light levels with some clever tricks if your yard lacks full sun. Light-colored walls and fences bounce extra rays toward your tree. A white gravel mulch reflects light up from the ground. These surfaces can add 30% more light to a partly shaded spot.
South-facing brick or stone walls give your olive an extra advantage. The masonry soaks up heat during the day and releases it at night. This warmth helps the tree grow and protects it from cold snaps. I placed my best producing olive three feet from a brick wall and it thrives there.
Give your olive at least six hours of direct sun and aim for eight if you want fruit. Choose the brightest spot in your yard and add reflected light where you can. Your olive will reward you with healthy growth and bigger harvests when it gets the sun it craves.
Read the full article: Growing Olives: Step-by-Step Plan for Home Gardeners
