I’m not quite sure why all the websites I researched from on Google claim that the seeds are hard to germinate (or were those just old seeds?), or that people who have grown it have told me so as well.
In fact, the seeds sprouted so readily for me I saw green leaves within two days of sowing!
It’s certainly one of the most fuss-free germination I’ve done.
The plant isn’t terribly fussy as well. I have the green ones in a soil mix of normal black soil with volcanic sand for drainage and the red ones in pure worm poo, and give them about four hours of direct sun, and they grow happily. Even at heights of barely four inches, their stems are already hard and pretty sturdy for their sizes.

The red shiso seedlings are beginning to color up =3
I’m waiting for all the plants to grow to a much greater height before harvesting the leaves to create an enzyme to drink.
Care: Not too fussy about the soil mix, but keep it on the moist side
Fertilizing: Weekly weak fertilizer
Sunlight: Bright shade to full sun
Propagation: By seeds (rumored to be reluctant to germinate if not fresh) or cuttings

Mar 31, 2011 @ 21:08:00
It’s always nice when seeds just sprout and grow for us. I love watching how they develop through the different stages. Happy growing!
Mar 31, 2011 @ 21:24:00
Thanks, CG! And yups, I like watching them grow strong as well. They’re definitely my babies (and I don’t need any human babies if I have have plants!). LOL.
Sep 12, 2011 @ 12:49:11
Hi, may I know where you buy the shiso seeds from? I am very keen to grow them here in Singapore too! Thank you very much in advance!