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Olive Trees & Yellow Leaves
Yellow leaves on your olive tree? It's a common worry, and usually a fixable one. Olive trees are having a real moment as ornamental potted plants, prized for their elegant branches and Mediterranean vibe. They're famously low-maintenance and highly drought-resistant, but they do take some patience, especially indoors. In this guide, we'll break down exactly what different kinds of yellowing mean and how to bring your olive tree's foliage back to health.
At Léon & George, our master gardeners have spent nearly a decade growing premium olive trees and helping thousands of plant parents nationwide, so the guidance here comes straight from hands-on experience.
Yellow, Curling Leaves: A Nutrient Deficiency
Though hardy, olive trees can suffer from nutritional deficiencies, particularly in nitrogen or magnesium. Yellow-tinged, curling leaves alongside stunted growth usually point to this. Feeding regularly with a balanced fertilizer during the growing season helps correct it, and if you've had your olive tree for a long time, repotting with fresh soil will replenish depleted nutrients.
Yellow Leaves Falling Off: Not Enough Light
If your olive tree is shedding pale yellow leaves at an alarming rate, the most likely culprit is too little sunlight. Olive trees don't tolerate low light, they need at least six hours of direct sun a day and are happiest outdoors. To keep one indoors, place it at a bright, unobstructed, ideally south-facing window, and consider supplementing with a grow light.
Yellow, Drooping Leaves: Overwatering
Leaves that yellow, wilt, and droop usually signal overwatering. Remember that olive trees are native to hot, arid climates and are very drought-resistant. Heavy overwatering leads to root rot, so if you suspect it, check the soil and roots, and repot in fresh, well-draining soil if the roots are mushy.
Yellow Leaves with Dry Brown Edges: Underwatering
While olive trees are drought-tolerant, they still need regular watering. Prolonged dry spells produce yellow leaves with crispy brown edges. You can't revive damaged leaves, but a consistent watering routine prevents more from forming. Water when the top few inches of soil have dried.
Normal Seasonal Drop
Some yellowing is simply nature's course. Olive trees shed older leaves over time, especially with seasonal changes, to make way for new growth. A modest number of yellow leaves on an otherwise healthy tree is nothing to worry about, just trim them off.
How to Prevent Yellow Leaves
The formula is simple: plenty of direct sunlight, careful watering (only when the top few inches are dry), good drainage, and balanced feeding during spring and summer. Get those right and your olive tree will stay silvery-green and vibrant.
Frequently Asked Questions
Why is my olive tree getting yellow leaves?
It depends on the type of yellowing: curling yellow leaves suggest a nutrient deficiency, falling yellow leaves point to too little light, drooping yellow leaves mean overwatering, and yellow leaves with brown edges indicate underwatering.
Do olive trees need full sun?
Yes. Olive trees need at least six hours of direct sunlight daily and don't tolerate low light. Indoors, place yours at a bright, south-facing window and supplement with a grow light if needed.
How often should I water an olive tree?
Water when the top few inches of soil (about a quarter of the soil volume) have dried out. Olive trees are drought-tolerant and far more prone to overwatering than underwatering.
Will yellow olive leaves turn green again?
No, a yellowed leaf won't recover, so trim it off. Once you correct the underlying cause, light, watering, or nutrients, healthy new growth will come in green.