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Germination of

Cryptomeria japonica

Japanese Cedar Bonsai Tree: Cryptomeria japonica, Sugi

Cryptomeria japonica

Cryptomeria japonica: Japanese cedar seeds require stratification to break their dormancy. To stratify, place the seeds in a plastic bag with a moist paper towel and refrigerate for 2-3 months. After stratification, plant the seeds in a well-draining soil mix, and keep the soil consistently moist. Germination can take 1-2 months.

Some of plants may have very have specific germination requirements that may not be covered in these general instructions. 

Many seeds require pre-treatment before sowing which we try to list here when we can, but this information may not be present here.  Germination times and germination temperatures are to be a guide only.  Many factors can DRASTICALLY affect this.


It's always a good idea to research the specific germination requirements from multiple sources for each plant before attempting to grow them from seed.

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