Mikawa Kuromatu Bonsai 三河黑松 (Japan)

$74.77 incl. GST
Earliest Delivery in 2 days

Pot Size APPROXIMATELY 11cm(L) x 9cm(W) x 6cm(H) x 22cm(Overall Height)

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  • The Japanese Black Pine is a highly-tolerant bonsai tree that can thrive even in poor growing conditions.
  • This bonsai tree can thrive in places with high wind and in nutrient-starved soils.
  • And because of these good features, it has become a favorite among new or first-time growers.


  • Using the right soil mixture for your Bonsai trees is crucial as it supplies your trees with nutrients, but it also needs to drain properly, provide enough aeration, and retain water.
  • You can get those ready-mixed soils or prepare a soil mixture yourself.
  • The quality of soil used directly affects the health and vigor of your tree.
  • Here are some factors to consider
  • Good water-retention
  • The soil needs to be able to soak in and retain sufficient quantities of water to supply moisture to the Bonsai between each watering.
  • However, too much water retention will damage your tree.
  • Good drainage
  • Excess water must be able to drain immediately from the pot.
  • Too much water-retention will rot the roots and kill the tree.
  • Soils that don’t drain well enough also lack aeration and are prone to a buildup of salts.
  • Good aeration
  • The particles used in a Bonsai mix should be big enough to allow tiny gaps, or air pockets, between each particle.
  • Other than providing oxygen for the roots, these air pockets also allow for good bacteria and mycorrhizae.
  • This allows the processing of food to happen before being absorbed by the tree’s root-hairs and sent to the leaves for photosynthesis.


  • You can use a relatively high Nitrogen content fertilizer like NPK 10:6:6.
  • Biogold is a favored fertilizer among Bonsai enthusiasts, but any fertilizer with the right NPK value is perfectly fine.
  • You can use a wide variety of liquid, solid, synthetic, and organic fertilizers.
  • Carefully follow the application guidelines as stated on the product’s packaging.
  • Never overfeed your trees, as this will have serious consequences for their health.


  • Being woody shrubs and trees, the plants need a sunny spot with at least four hours of direct sunlight to thrive.
  • The lack of sunlight will lead to lanky growth and large leaves which are not desired in bonsai specimens. You need to prune the plants periodically to maintain their shape and form.


  • Water your trees when the soil gets slightly dry
  • Be sure not to water your tree if the soil is still wet, but don't let the tree dry out either.
  • As a beginner, use your fingers at about one centimeter deep, (0.4") to check the soil moisture.
  • If it's slightly dry, go ahead and water your tree.
  • This will become more obvious as you gain experience. You'll be able to see, rather than feel when your tree needs watering.
  • Never water on a routine
  • Keep a close eye on your trees individually to determine when each one needs watering.
  • Avoid watering all of your trees on a daily routine, until you know exactly what you are doing.
  • Use the right soil-mixture
  • The soil-mixture greatly influences how often trees need to be watered.
  • Most Bonsai trees thrive on a mixture of akadama, pumice, and lava rock in a ratio of ½ to ¼ to ¼.
  • However, if you are not able to water regularly, you can use a mixture that retains more water by using more akadama or even using compost in your potting.


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