How to grow and care for Osmanthus
Posted: Sat May 23, 2026 7:43 pm
Osmanthus, also known as sweet olive or sweet osmanthus, is a hardy evergreen shrub valued for its attractive foliage and, in some varieties, fragrant spring flowers. These small to medium-sized shrubs are generally easy to grow and perform well in both sun and shade. Although slow growing and sometimes taking a year or two to establish, they reward patience by becoming excellent feature plants for borders, screening, and hedging.
Different species are prized for different qualities. Osmanthus heterophyllus is particularly admired for its holly-like, spiny leaves, available in a variety of green and variegated forms. Others, such as Osmanthus × burkwoodii and Osmanthus delavayi, are mainly grown for their clusters of highly scented white flowers in spring. Many varieties also produce dark purple or black berries in autumn. Some Osmanthus species can even serve as attractive alternatives to box hedging.
Where to grow Osmanthus
Plant Osmanthus towards the middle or back of a border, in a woodland-style garden, or as a single-row hedge, allowing around three plants per metre for good coverage. Compact variegated varieties are particularly well suited to growing in large containers. While Osmanthus will tolerate both sun and shade, a sunny position encourages better flowering. Choose a sheltered location, avoiding exposed or windy sites and soils that are likely to become waterlogged.
How to Plant Osmanthus
In colder regions, plant Osmanthus in spring to give it plenty of time to establish before winter arrives. In milder climates, planting can be done in either spring or autumn.
When to Plant Osmanthus
The ideal time to plant Osmanthus is during spring or autumn, when the soil is moist and temperatures are mild. Although it can also be planted in summer, hot and dry conditions will require more frequent watering to help the plant settle in and establish successfully.
How to care for Osmanthus
Water Osmanthus regularly during dry periods for the first few years after planting, ensuring the soil is soaked thoroughly so moisture reaches deep into the ground. This encourages the development of a strong, deep root system.
Each spring, apply a mulch around the base of the plant using well-rotted organic matter such as garden compost, leaf mould, or chipped bark, taking care to keep it away from the stems. A balanced general-purpose fertiliser can also be added at this time to support healthy growth.
In winter, lightly prune Osmanthus to maintain its desired shape and size.
How to Prune Osmanthus
Pruning is usually only necessary to control size or improve shape. For spring-flowering varieties, trim immediately after flowering has finished. Species grown mainly for their foliage are best pruned in late spring.
How to Propagate Osmanthus
Osmanthus can be propagated successfully by cuttings or layering.
For cuttings, select healthy, vigorous, non-flowering shoots in mid to late summer. Place the cuttings into pots filled with moist seed compost and keep them in a heated propagator until signs of new growth appear.
Layering is a slower method but requires little equipment and can be carried out directly in the garden. Choose a young, flexible shoot growing close to the ground and bend it down so it touches the soil. Using a sharp knife, remove a small strip of bark where the stem meets the soil, then peg the shoot firmly in place. Leave it for up to a year until roots have developed. Once rooted, cut the new plant from the parent, pot it up, and grow it on until it is strong enough to plant out in the garden.
Frequently asked questions
What Does Osmanthus Smell Like?
Osmanthus flowers are prized for their rich, sweet fragrance, often compared to apricot jam with delicate citrus and leathery undertones. Their scent is both fruity and floral, making them especially appealing in the garden.
What Are the Benefits of Osmanthus?
In addition to its ornamental value, Osmanthus flowers are sometimes used to make herbal tea. This tea is traditionally believed to offer a range of benefits, including helping to ease bloating and digestive discomfort, supporting healthy blood pressure, and relieving menstrual cramps.
Different species are prized for different qualities. Osmanthus heterophyllus is particularly admired for its holly-like, spiny leaves, available in a variety of green and variegated forms. Others, such as Osmanthus × burkwoodii and Osmanthus delavayi, are mainly grown for their clusters of highly scented white flowers in spring. Many varieties also produce dark purple or black berries in autumn. Some Osmanthus species can even serve as attractive alternatives to box hedging.
Where to grow Osmanthus
Plant Osmanthus towards the middle or back of a border, in a woodland-style garden, or as a single-row hedge, allowing around three plants per metre for good coverage. Compact variegated varieties are particularly well suited to growing in large containers. While Osmanthus will tolerate both sun and shade, a sunny position encourages better flowering. Choose a sheltered location, avoiding exposed or windy sites and soils that are likely to become waterlogged.
How to Plant Osmanthus
In colder regions, plant Osmanthus in spring to give it plenty of time to establish before winter arrives. In milder climates, planting can be done in either spring or autumn.
When to Plant Osmanthus
The ideal time to plant Osmanthus is during spring or autumn, when the soil is moist and temperatures are mild. Although it can also be planted in summer, hot and dry conditions will require more frequent watering to help the plant settle in and establish successfully.
How to care for Osmanthus
Water Osmanthus regularly during dry periods for the first few years after planting, ensuring the soil is soaked thoroughly so moisture reaches deep into the ground. This encourages the development of a strong, deep root system.
Each spring, apply a mulch around the base of the plant using well-rotted organic matter such as garden compost, leaf mould, or chipped bark, taking care to keep it away from the stems. A balanced general-purpose fertiliser can also be added at this time to support healthy growth.
In winter, lightly prune Osmanthus to maintain its desired shape and size.
How to Prune Osmanthus
Pruning is usually only necessary to control size or improve shape. For spring-flowering varieties, trim immediately after flowering has finished. Species grown mainly for their foliage are best pruned in late spring.
How to Propagate Osmanthus
Osmanthus can be propagated successfully by cuttings or layering.
For cuttings, select healthy, vigorous, non-flowering shoots in mid to late summer. Place the cuttings into pots filled with moist seed compost and keep them in a heated propagator until signs of new growth appear.
Layering is a slower method but requires little equipment and can be carried out directly in the garden. Choose a young, flexible shoot growing close to the ground and bend it down so it touches the soil. Using a sharp knife, remove a small strip of bark where the stem meets the soil, then peg the shoot firmly in place. Leave it for up to a year until roots have developed. Once rooted, cut the new plant from the parent, pot it up, and grow it on until it is strong enough to plant out in the garden.
Frequently asked questions
What Does Osmanthus Smell Like?
Osmanthus flowers are prized for their rich, sweet fragrance, often compared to apricot jam with delicate citrus and leathery undertones. Their scent is both fruity and floral, making them especially appealing in the garden.
What Are the Benefits of Osmanthus?
In addition to its ornamental value, Osmanthus flowers are sometimes used to make herbal tea. This tea is traditionally believed to offer a range of benefits, including helping to ease bloating and digestive discomfort, supporting healthy blood pressure, and relieving menstrual cramps.