Do you know how to care Kuromatsu ( black pine)bonsai?

Do you know how to care Kuromatsu ( black pine)bonsai?

I’m Nobu, I like traveling overseas and in Japan, visited 25 countries. I’ve got the license of the certificate English guide in Japan for 8 years.

I show you hidden Japan which you have never seen and heard of!

I went to the Kokufu bonsai festival at Tokyo metropolitan art museum.

I came across the beautiful Kuromatsu bonsai there.

Kuromatsu(Black Pine)Bonsai


It can be enjoyed as an evergreen all year round.

The leaves are longer and more rigid than those of the Japanese Goyomatsu(pine).

It is a representative species of bonsai that is popular as a masculine bonsai tree.

And it is one of the two popular pine bonsai with Goyomatsu.

It is hardy and easy to grow throughout Japan.

Prefers full sun, but can grow in semi-shade or shade, depending on the environment.


Place it in a well-ventilated place.

Basically, it should be kept outdoors.

In winter, it is best to keep it in the sun, away from wind and frost.

In winter, it should be kept indoors for 1 week, and 2-3 days in other seasons.


It prefers a dry environment.

The plant prefers a dry habit, so give it plenty of water when the topsoil dries out.

In spring and fall, feed once a day, in winter once every three days, and twice in midsummer.


Place a solid organic fertilizer once a month between April and September.

But it excepts during the rainy season and midsummer.


Insecticides should be sprayed 3-4 times from spring to fall to prevent aphids and pine wilt.


Trim back any thinning buds from the base.

And cut back any buds that have not been trimmed.

Then leave 3-4 leaves on the buds.


Start in February for thicker trunks or when you want to bend the trunks.

The wire for bending should be left on for six months to a year.

Bud trimming

In April, just before the leaves begin to grow, cut only the strong buds in half.

Leave the weak buds.

In July, cut off the weakest shoots first, then the new shoots, leaving only the previous year’s leaves.

If the strong shoots are cut at a later time (1-2 weeks), the size of the second shoots will be uniform by fall.

Leaf rustling

In December, pull out the old leaves as if you were dusting them off.

Where the lea are crowded, cut the new leaves as well.

In November, the old leaves will naturally fall off, so it is best to remove the remaining leaves with tweezers.

While the number of leaves is low, cut and align the leaves.


Replant it in 3 to 4 years.

The best time to replant is from early April to early May, when new shoots are growing.

How is it?

I think you can take care of it by yourself .

I’m Nobu, one heart enjoy together!!!

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