Sign In to join the community | Help
Lawn & Garden

Japanese Black Pine, Pinus thunbergiana

Common Name: Japanese Black Pine

Type: conifer

Family: Pinaceae

Zone: 5 to 9     Find Your Zone

Height: 20 to 35 feet

Width: 20 to 35 feet

Sun exposure: full sun

Soil: well drained, acidic to alkaline, clay, sandy loam

Leaves: evergreen


This tree grows as a bushy, lower growing tree that grows dense from top to bottom and can get as wide as it does tall. Its dark green needles grow 5 to 7 inches long and in groups of 2. This tree tolerates salt well and can grow quickly in ideal conditions.   This tree is very popular as a bonsai tree.


In the landscape, this tree grows well as a specimen tree or as a visual screen. This tree is great in coastal areas and grows further north than many other pines. This tree in not native to the United States.



STEP 1: Digging the hole

  • Find a location that has suitable sun exposure for your particular type of plant.
  • Dig your hole an inch or two shallower than the rootball of the plant.
  • Dig the hole twice the diameter of the rootball.
  • Scuff up the sides of the hole with a shovel to help roots break through the native soil.

STEP 2: Putting plant in hole

  • When removing the plant from the pot, check to see if the roots were circling the pot.
  • If the plant is rootbound, gently break up the roots with your hands until loosened up.
  • Set plant level, in the center of the hole.
  • Make sure the top of the rootball is just above soil level.

STEP 3: Amending the soil and filling in the hole

  • Amend the soil with proper amendments for your soil type. 
  • Incorporate 50% native soil with 50% amendment soils like garden soil, composted manure or soil conditioner.
  • Make sure dirt clods are broken up or removed from hole along with rocks.
  • Fill the hole with soils to the soil level and pack down. Do not cover top of rootball with dirt.
  • Water in thoroughly to remove air pockets.

STEP 4: Mulching and fertilizing

  • Cover the planting site with at least 2 inches of the mulch of your choice (pinestraw, cupress mulch,etc.)
  • High Phosphorus root stimulator fertilizers like Quick Start from Miracle Gro are great to use at time of planting.
  • When planting trees, a tree stake kit may be required to prevent the wind from blowing over or breaking our newly planted tree until it becomes established.

Find your closest local store

Not what you were looking for ? Try posting a question
Posted 2015-10-11T17:41:59+0000  by Ingar_HD_ATL Ingar_HD_ATL