How to Grow Wavy Leaf Olive
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Wavy Leaf Olive
Olea europaea 'Undulata'
treeWavy Leaf Olive is an ornamental and productive cultivar of the common olive tree, distinguished by its distinctive wavy or undulating leaf margins. This Mediterranean tree produces edible olives while offering attractive silvery-green foliage and architectural interest to landscapes. It combines aesthetic appeal with the functionality of a fruit-bearing tree.
When should you plant Wavy Leaf Olive in your zone?
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Example Wavy Leaf Olive timeline · Pittsburgh, PA (Zone 6b)
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Plant Wavy Leaf Olive
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Wavy Leaf Olive
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Wavy Leaf Olive dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 8-11; best in zones 9-10 for consistent fruit production
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Get my Wavy Leaf Olive timeline →Growth Stages
Establishment (Year 1)
12 monthsYoung tree focuses on root development with slow above-ground growth. Leaves are silvery-green with wavy margins. Tree is relatively small and delicate.
Water regularly to keep soil consistently moist but not waterlogged. Stake young tree in windy locations. Apply 2-3 inch mulch layer. Avoid heavy pruning. Protect from temperatures below 15°F.
Vegetative Growth (Years 2-3)
24 monthsTree develops stronger branch structure and increased canopy coverage. Wavy leaf characteristics become more pronounced. Tree grows to 15-25 feet if unpruned.
Establish desired shape through selective pruning. Reduce watering frequency as roots deepen. Begin light fertilization in spring. Continue frost protection in young years. Thin branches to improve air circulation.
Flowering (Spring, typically April-May)
4-6 weeksAbundant small, greenish-white, fragrant flowers appear in clusters (panicles) along branches. Flowers are inconspicuous but essential for fruit set.
Do not prune during flowering. Ensure adequate water during this critical period. Many olive flowers drop without setting fruit; this is normal. Avoid high nitrogen fertilization which delays flowering.
Fruit Development (Summer to Fall)
12-14 weeksSmall green fruits develop from fertilized flowers. Olives gradually enlarge and change color from green to yellow-brown to black (depending on harvest timing). Full maturity occurs in fall.
Thin developing fruit if excessive (every 1-2 inches on branch) for larger olives. Maintain consistent watering for even fruit development. Watch for pest and disease issues. Support heavy fruit loads with stakes if needed.
Harvest & Dormancy (Fall-Winter)
3-4 monthsMature olives are ready for harvest from September through November depending on region. Tree enters dormancy in winter with minimal growth.
Hand-harvest olives by shaking branches or picking individually. Cure or process olives immediately after harvest. Minimal watering needed in winter. Prune after harvest to remove dead wood and shape. Protect from hard freezes.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use pheromone traps, prune heavily infested branches, harvest early, apply spinosad or neem oil in late summer, maintain sanitation by removing fallen fruit
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Keep trees healthy and watered to reduce susceptibility, prune and remove infested branches, apply preventive borax treatments to pruning wounds
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Prune heavily infested branches, spray with horticultural oil in late winter/early spring, encourage natural predators, apply insecticidal soap if severe
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Increase humidity through overhead irrigation, spray with neem oil or miticide, remove webbing and affected foliage, encourage predatory mites
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Prune for air circulation, avoid overhead watering, remove infected leaves, apply copper fungicide in fall/winter, maintain tree health
Uses
Table Olives & Oil Production
CulinaryBoth green and fully ripe olives can be cured and preserved for eating. Mature trees also produce olives suitable for pressing into high-quality olive oil, though commercial oil production requires multiple trees and specialized pressing equipment. [source]
Mediterranean Cuisine
CulinaryCured wavy leaf olives are used in salads, pasta dishes, tapenade, and as table olives. The fruit is a staple in Mediterranean cooking and pairs well with feta, tomatoes, and citrus. [source]
Landscape Architecture & Aesthetics
OrnamentalThe distinctive wavy leaf margins, silver-green foliage, gnarled trunk, and architectural form make this an excellent ornamental specimen tree for Mediterranean-style gardens, courtyards, and drought-tolerant landscapes. [source]
Leaf Extract & Wellness
MedicinalOlive leaves contain oleuropein and polyphenols with potential antioxidant and immune-supporting properties. Leaf extracts have been used traditionally and are available in herbal supplements. [source]
Wood & Crafts
HouseholdOlive wood is dense, hard, and beautifully grained. It is prized for turning into bowls, cutting boards, decorative items, and small furniture pieces. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Olives mature in fall (September-November) and can be harvested at different stages: green (August-September, firmer, more bitter) or fully ripe black (October-November, softer, milder). Hand-pick or shake branches onto tarps. Harvest by breaking fruit stem. Green olives require lye curing; black olives require fermentation or water curing. Cure within 24 hours of harvest for best results. A mature tree produces 50-100 pounds of fruit annually under ideal conditions.
Fun Facts
- 🌱 Olive trees can live for hundreds of years; some specimens in the Mediterranean region are over 1,000 years old and still produce fruit, making them one of the longest-lived cultivated trees.
- 🌱 The wavy leaf characteristic of this cultivar is a genetic trait that makes it distinct from standard olive varieties and enhances its ornamental value while maintaining full productivity.
- 🌱 Olives are one of the oldest cultivated crops in the world, with evidence of olive cultivation dating back to at least 3,000 BCE in the Mediterranean region, and they hold significant cultural and religious importance in many traditions.
Gardening Terms
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