FREE SHIPPING on all Orders over £30 (UK Only)

We're on Instagram! 📷 Please accompany us on our journey by following our account (heartwood_seeds) either by simply clicking here, or the Instagram button at the very bottom of this page. Thanks very much for your support — and see you there! 💜🌿

A Niwaki trained Pinus thunbergii Black Pine within the Japanese garden at the Botanic Garden of Wales | Heartwood Seeds UK
Attractive orange and magenta seed cones on the end of green pine needles of an elegant Pinus thunbergii tree within Japan
Pinus thunbergii Japanese Black Pine seeds
Heartwood seed pack, business card and teapot - Pinus thunbergii

Pinus thunbergii (Japanese Black Pine) | 30 Seeds | £3.49

Regular price
Sale price
Unit price
Shipping calculated at checkout.

Pinus thunbergii - (Japanese Black Pine)


An elegant evergreen pine native to coastal regions of Japan and South Korea.  The species, "thunbergii", is in honour of the Swedish Botanist, Carl Peter Thunberg


Orange-yellow conical pollen cones appear in spring, developing into very attractive, rich-magenta seed cones


Resistant to pollution and salt, and very tolerant of poor nutrient-lacking soils, such as within its native range


One of the classic bonsai trees, with its slow growth and short needles. The trees are also strongly used within Japanese gardens as "Niwaki" trained trees


Hardy to around -23ºC (-9ºF) but requires a well-drained soil


Please note: full germination instructions are printed on each pack


✽ ❀ ✽ ❀ ✽ ❀ ✽ ❀ ✽


© Heartwood - supplying rare and unusual plants and seeds to the curious grower




Genus: Pinus


Species: thunbergii


English name: Japanese Black Pine


Plant type: Evergreen conifer


Eventual height: Under 3 ft as a bonsai; or 20-60 ft within deep and open ground after 50 years


Season of Interest: All year


Hardiness: Hardy to -23ºC (-9ºF)


Sun Exposure: Prefers full sun outdoors for more attractive, shorter needles


Soil: Must have well-drained soil/compost (with one third of added grit). Prefers moisture but not being water-logged. Nutrient poor soil/compost is best


Propagation methods: Cuttings and seed



Please note: This species is not available for International Delivery (Outside of UK)


FREE UK shipping on orders over £30

UK Mainland


All orders are sent via Royal Mail First Class Signed-for

£4.10 - £4.95 - depending on order size (incl. packaging / handling fee)




All orders are sent via Royal Mail International Airmail (Tracked & Signed)

£9.95 (incl. packaging / handling fee)


Rest of World

All orders are sent via Royal Mail International Airmail (Tracked & Signed)

£10.95 (including packaging & handling fee)


Customer Reviews

Based on 3 reviews
Malcolm C.
Wait and see!

Seeds arrived in good time. Currently in fridge as per the instructions so now it's 'wait and see'.

Awaiting germination!

The seeds all look in good condition so hoping to get a good germination rate. Time will tell!

Mr Z. Skribek
First Opinion and experiencies!

Hi Everyone, I have followed their instruction that I got and everything went well! I used a mixed loose soil with sphagnum. The seeds were soaked for 48 hours and after they were in a plastic bag in the soil in fridge for one month. After in this mixed soil I planted the seeds and one week later the seeds were sprouted. It was a very nice surprise! Thanks for the fresh seeds! Some seeds, unfortunately, thinned and died. Maybe it was a sickness! I do not know why. The rest remained. They live well and I'm waiting for the growing period :) This family company is very nice, kind and helpfull! I can only recommend them :)