Does it need full sun?

No, it actually prefers partial to full shade.

Yes, it has a moderate to slow growth rate.

Plant guide

Sweet box.

Sarcococca confusa

Pronounced sar-ko-KOK-uh kon-FYOO-zuh

Also known as Sweet Box

Sweet box is a fantastic evergreen shrub that brings a lovely fragrance to the garden in the middle of winter. It stays compact and works well as a hedge or a foundation plant in shady spots. You will love how its glossy leaves look great all year long.

At a glance

Care level: Easy
Plant type: Evergreen shrub
Light: Partial shade to full shade
Indoor light: Medium light
Water: Every 7 to 14 days
Mature size: 150cm by 150cm
Growth rate: Slow
Hardiness: USDA 6 to 9
Bloom time: Mid winter to early spring

Care

Plant this shrub in a sheltered spot with moist, well draining soil to keep it happy. Watch for yellowing leaves which often indicate the soil is too dry or lacks nutrients. Prune lightly after flowering to maintain its shape and encourage bushier growth.

Watering: Keep the soil consistently moist but never waterlogged.
Feeding: Apply a balanced slow release fertilizer in early spring.
Pruning: Prune lightly immediately after the flowers fade in late winter or early spring.
Repotting: Repot only when the plant becomes root bound in its container.
Soil: Loamy, moist, well draining
Soil pH: Neutral to slightly acidic
Temperature: -15 to 30°C
Humidity: 40 to 70%
Drought tolerance: Moderate
Lifespan: Perennial, typically 20 plus years
Fragrance: Strong
Deer and rabbits: High

Signs it needs repotting

Roots growing out of the drainage holes.
Water sitting on the surface for too long.
Stunted growth during the active season.

Safety

People: All parts of the plant are considered slightly toxic if ingested.
Pets: The berries may cause mild stomach upset if ingested by pets.
Children: Keep children away from the berries as they are attractive but potentially harmful if eaten.
Contact allergens: The sap may cause mild skin irritation in sensitive individuals.
Airborne allergens: There are no significant reports of respiratory allergies associated with this plant.
Edibility: The berries are generally considered inedible and may cause stomach upset if consumed.

How to identify it

Glossy dark green lance shaped leaves
Small white fragrant winter flowers
Shiny black berries in autumn
Dense bushy evergreen growth habit

Height: 1 to 2m
Spread: 1 to 2m
Leaves: dark green, glossy, evergreen
Flowers: white, cream, 0.5 to 1cm
Fruit: black, Late summer to autumn

Problems to watch for

Boxwood BlightCommon
AphidsUncommon
Leaf DropUncommon
Leaf SpotUncommon
Root RotUncommon
Scale InsectsUncommon

By symptom

Plant problems by symptom

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Growing it

Propagation: cuttings, division, seed
When to plant: spring, autumn
Overwintering: It is quite hardy, but a layer of mulch around the base helps protect the roots during deep freezes.
In containers: It grows well in containers, provided you use a large pot with excellent drainage.

Semi-ripe cuttings

1. Take 10 cm cuttings in late summer.
2. Remove lower leaves.
3. Dip in rooting hormone.
4. Place in a well-draining mix.
5. Keep in a humid, shaded spot until rooted.

Plant these near a doorway or path so you can enjoy the winter fragrance when you walk by.

Grows well with

Hellebore · They share similar shade and moisture requirements.
Hostas · The contrasting leaf textures look lovely together in a shaded bed.
Ferns · Ferns provide a soft, woodland aesthetic that complements the glossy leaves of the sweet box.

Similar species

Sweet box · It is a smaller, suckering species often used for ground cover.
Fragrant sweet box · It has similar flowers and scent but often features red berries instead of black.

Science

Family: Buxaceae
Genus: Sarcococca
Order: Buxales
Class: Magnoliopsida
Native range: Western China
Conservation: This plant is not of conservation concern.

It grows in the understory of forests, where it has adapted to low light levels and cool, moist conditions.

Value to wildlife: winter nectar source
Pollinators: bees
Uses: hedging, woodland gardens, scented gardens, shaded borders

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 1/9
Soil reaction: 6/9
Light: 2/9
Nutrients: 5/9
Temperature: 4/9
Moisture: 6/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need full sun?: No, it actually prefers partial to full shade.
Is it slow growing?: Yes, it has a moderate to slow growth rate.

Where the name comes from

The name Sarcococca comes from the Greek words for flesh and berry, referring to the fleshy fruit. The species name confusa refers to the historical confusion in identifying this plant from its close relatives.

Good to know

It is often called sweet box.
The flowers are tiny but pack a huge scent.
It thrives in deep shade where many other plants fail.
It is a reliable evergreen that keeps the garden looking lush all year.

Also in

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This guide was generated with AI on September 26, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.