
1 tan packet of 20 Pinus Thunbergii 'Japanese Black Pine' Bonsai Seeds (care guide included)
Pinus Thunbergii
(Find more info on germinating seeds by going to our seed guide)
About the seeds:
difficulty |
beginner | intermediate | advanced |
germination time |
1 month |
depth |
1/8"-1/4” |
spacing |
1-3 seeds per nursery pot or greenhouse tray cell |
recommended planter |
2"-4" nursery pot or greenhouse to start (no terra cotta) |
time to maturity |
several years |
seed prep |
pre-soak | scarification | stratification | none |
method |
greenhouse | paper towel method |
temperature |
70F - 85F |
About the Plants:
description |
tall pine tree, dark gray trunk with long needles |
difficulty |
beginner | intermediate | advanced |
growth speed |
slow | medium | fast |
size of plant |
outdoors 125ft tall. As a bonsai, much smaller. |
light |
full sun | partial sun | shade | grow lights |
soil |
well-draining coconut coir/peat-based or bonsai potting mix |
temperature |
warm | cool |
pet-friendly |
cats | dogs | no |
pests |
few pests |
fertilization |
heavy | moderate | light |
Extra tips or info: Pre-soaking and stratification is option, but helps with germination. Pre-soak by placing the seeds in room temperature-warm water for 24 hours. Stratify by placing in soil or sphagnum moss in a baggie or tupperware container and placing the container in a fridge for ~1-2 weeks. From there, sow the seeds in a greenhouse and keep warm and brightly lit. Acclimate seedlings to full sun gradually, or keep under grow lights.
For the 2022 growing season.