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Cryptomeria japonica (Japanese Cedar) seeds

Cryptomeria japonica (Japanese Cedar) seeds

Regular price £2.35 GBP
Regular price Sale price £2.35 GBP
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Excellent conifer for Bonsai, easily grown from seed, with long, slender branches, needle-like mid green leaves and fibrous, red-brown bark.

Winner of the Award of Garden Merit

Hardy Tree
Height: to 15m, Spread: 5m (if not pruned)
Position: Not fussy! Sun or shade in any soil

Packet of 25 seeds


RHS Award of Garden Merit

This plant/cultivar has been awarded the RHS Award of Garden Merit because it has proved to be reliable in appropriate conditions and a good performing plant. For more information on RHS award of Garden Merit plants visit




Sowing Instructions: Sow at any time of the year.  Sow thinly 2mm deep in pots or trays of a moist seed compost, eg. John Innes. Germination can be erratic hence the need to sow thinly so that seedlings can be removed without disturbing the rest of the compost too much. Seal inside a polythene bag or place in a propagator and maintain a temperature of around 18C. Germination takes between 30 to 60 days. As the seedlings emerge, gradually increase ventilation by opening the bag or propagator vents.

Growing Instructions: Transplant seedlings when large enough to handle into 7.5cm pots. Grow on in cooler conditions with plenty of light, but shaded from direct sun. In the spring, gradually acclimatise to outdoor conditions and grow on until mature enough to be planted out in the garden. Will do well in virtually any position.

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RP Seeds delivery - £1.35 and free on orders over £25  

We offer prompt order dispatch within 1-2 working days by Royal Mail.  Delivery time will normally be within 2-3 days but may vary due to the current situation.

Shipping is only £1.99 and FREE on orders over £30

Due to phytosanitary regulations we are unable to send seeds outside the UK.  If a mail forwarding service in the UK is used to send your order abroad, please be aware that we will not take responsibility for orders confiscated by customs.


If an order is returned to us as undelivered by the postal service, we will refund the cost of the products purchased, not the delivery charge. When a service other than standard delivery is used, we will also deduct this from the refund (eg. signed for, special delivery or courier charges).  It is the customer's responsibility to ensure the delivery address on the order is correct. 

Please report any orders delivered damaged or incorrect, and any missing orders not delivered within 14 days of the order date by emailing us:




All our seed packaging and most of our postal packaging is paper based and can be recycled.

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Store seeds in a cool, dry place.