Prunus serrulata

Japanese cherry

Family: Rosaceae

Origin: Asia

Close up of cherry flowers on branch.
Tree roots can grow suckers, moving underground. These suckers can then mature into new trees.
Photo credit: Jeremy Rolfe

Regional Pest Management Plan (RPMP) status

  • Hauraki Gulf Controlled Area Notice pest
  • Whole region — Sustained control

View more about the RPMP statuses

General description

Deciduous tree < 12 m tall. Leaves are < 13 x 6 cm and toothed. Flowers are pink/white and borne in spring. Fruit is red/black and < 15 mm in diameter.

What you need to know

To help protect our environment, from 1 September 2022, you:

  • will not be allowed to breed, distribute, release or sell Japanese cherry within the Auckland region.
  • ill not be allowed to plant Japanese cherry within the Auckland region, unless you are transferring an existing plant on your land to another location within the boundaries of the same property.
  • must destroy any Japanese cherry on land that you occupy if it has been planted in breach of the above rules and you are directed to do so by an authorised person.

Habitats

Forest, riparian margins, roadsides, track sides, gardens.

Dispersal

Seeds dispersed by birds. Vegetative spread from suckers.

Impact on environment

Competes with and displaces native plants. May reduce plant functional diversity in invaded forests.

Control

Site Management

Follow up treated areas 3 times per year. Encourage natural regeneration of native plants or replant treated areas where possible after 2-3 treatments to establish dense ground cover and minimise reinvasion.

Recommended approaches

Physical control

Method: Dig out.

Plant parts requiring disposal: Seeds.

Disposal options: Remove to greenwaste or landfill if practical.

Biocontrol

Biocontrol is currently not available for this species.

Community agrichemical control recommendations

No qualifications: Cut stump and paste freshly cut base of stems with metsulfuron gel.

Basic Growsafe certified: Cut stump and spray freshly cut base with 1g metsulfuron-methyl per 1 L of water.

Certified Handler/Experienced agrichemical user: Drill and inject trees with 1g metsulfuron-methyl per 1L of water if safe to do so. Drill 18mm holes (tangentially angled downwards) in a spiral up the trunk.

For 50mm stems drill one hole. For 100mm stems drill two holes. For larger stems drill holes 150mm apart. Foliar spray seedlings with 5g metsulfuron-methyl per 10L of water and 20ml penetrant.

Safety notes

Large trees must not be drilled that are closer than 1.5 times the height of the tree from paths, walkways and property.

Trees over 4 metres in height should be treated and then removed by a qualified arborist.

Caution: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.

Mature Japanese Cherry in full bloom.
Deciduous tree that can grow up to 12m tall. Fruit are spread by birds and can grow in native forests.
Photo credit: Jeremy Rolfe
Close up of Japanese Cherry trunk.
Very popular tree for street plantings with glorious showers of pink flowers in spring. Vigorous growing tree.
Photo credit: Jeremy Rolfe