There are a number of cultivars of Japanese White Pines. True cultivars are maintained through grafting but it doesn't mean there isn't variation in seed grown trees. I own an 'eiko nishiki' which is a grafted corking bark JWP with very blue needles. I also have a nursery grown JWP which has bluish needles. I have several younger JWPs all of which have varying shades of green needles. One is almost yellowish and not dead

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