Phillyrea latifolia: complete guide

Overview

Phillyrea latifolia, commonly known as the green olive tree, is an elegant shrub from the Mediterranean region. This plant belongs to the Oleaceae family and is a close relative of the common olive tree. The green olive tree distinguishes itself through its compact growth habit, dark green foliage, and fine yellow flowers that appear in spring.

Although many gardeners find this plant unfamiliar, it is becoming increasingly popular in European gardens due to its weather resistance and low maintenance requirements. The plant is ideal for formal gardens, Mediterranean styles, and as a hedge or screen.

Appearance and bloom

Phillyrea latifolia is a semi-evergreen to evergreen shrub that can grow 3 to 6 meters tall. The leaves are dark green, lance-shaped, and approximately 2 to 5 centimeters long. They grow opposite each other on the branches, giving the plant a very neat, formal appearance.

The flowers are small, yellow to yellowish-white, and appear in May and June in small clusters. They are not very showy but have a pleasant fragrance most noticeable in the morning. After flowering, small, round fruits develop that are first green and later turn dark purple to black. These fruits attract birds and provide food for various bird species.

Ideal location

The green olive tree thrives best in a sunny to partially shaded location. In colder climates, choose a spot where the plant receives at least 5 to 6 hours of direct sunlight. This promotes compact growth and richer flowering.

Ensure the plant is protected from strong northern winds. Although reasonably hardy, young plants appreciate some shelter in the first years after planting. A spot against a wall facing south or west is ideal.

The plant is excellent for container cultivation on terraces and balconies, provided you water regularly.

Soil

Phillyrea latifolia has few demands when it comes to soil composition. It grows well in normal garden soil as long as it is well-draining. Waterlogging must be avoided. If your soil is heavy and clayey, improve it by mixing in sand and compost.

The ideal pH is between 6.5 and 7.5. In too acidic soils, add some lime. In container cultivation, use a universal potting soil mixed with some clay and stone particles for better drainage.

The plant is also suitable for poor, chalky soils - typically Mediterranean. This is actually its strength: it can flourish where many other plants struggle.

Watering

After planting, water the green olive tree regularly until it is well established (first 1 to 2 years). Ensure the soil remains evenly moist but never waterlogged.

Once established, the plant is very drought-tolerant and needs little extra water. During very dry periods in summer, water when the soil is dry in the top 5 centimeters.

In container cultivation, check more frequently if water is needed. In summer, you can water weekly, in winter only occasionally.

Pruning

Pruning is optional but promotes a beautiful shape. You can prune the plant in May to June after flowering. Remove dead or damaged branches and trim excess growth back above a leaf.

If you want to form a formal hedge, prune two to three times per year: in May/June, July, and August. Use a hedge trimmer for neat lines.

The plant tolerates hard pruning well, so you can cut it back severely if it has become too large. However, do not do this in winter.

Maintenance calendar

March: Check frost damage. Remove dead branches and fertilize. May: Prune after flowering. Ensure adequate water during dry weather. June-August: Regular pruning for formal shapes. Check for pests. September-October: Prepare for winter. Add mulch layer around the base. November-February: Minimal maintenance. Prune only during severe frost.

Winter hardiness

Phillyrea latifolia is hardy down to approximately minus 15 degrees Celsius. In northern European winters, the plant survives without problems. In very harsh winters with temperatures below minus 15 degrees, young plants may suffer damage.

Protect young plants in the first year with straw or burlap around the stem if it gets very cold. Once established, the plant requires no winter protection.

In containers, the plant is more sensitive to frost, as the roots are less insulated. Move containers to a sheltered, frost-free location or wrap them in burlap.

Companion plants

The green olive tree combines beautifully with other Mediterranean plants such as lavender, rosemary, and santolina. It also works excellently together with pruned boxwood and other dark green hedges in formal gardens.

For more natural gardens, plant it in groups of three to five. Combine with lower groundcovers such as cerastium or creeping thyme.

Light blue flowers such as agapanthus provide nice contrast to the dark green foliage.

Closing

Phillyrea latifolia is an underrated but very valuable addition to gardens in cooler climates. With its gray-green foliage, elegant form, and low maintenance needs, it is ideal for those who want a Mediterranean look without much fuss. Plant it in gardenworld.app designed gardens for elegance and style.

Visit gardenworld.app for inspiration in designing your Mediterranean garden with this beautiful green olive tree.