I googled it and the images definitely look right. Thanks!

Hi there! Kwanzan flowering cherries are quite spectacular in full bloom! If I may recommend something rather drastic: You might have to re-plant the tree to another location--preferably one that is facing east. Should you decide to do this, it would be a good idea to inoculate the exposed roots with mycorrhizal fungi. The mycorrhizal fungi provide beneficial bacteria that increase the uptake of essential nutrients for the strengthening of the root system and the tree as a whole. I would first dip the exposed roots in the liquid form of the fungi and then just before covering the roots, rest at least four packets of the solid form of the fungi upon them. Garden Gro http://www.thegreengro.com/ sells the liquid form and Xtreme Gardening http://www.ebay.com/itm/Xtreme-Gardening-Mykos-10-gram-Root-Paks-20-ct-/150964902917?pt=LH_DefaultDomain_0amp;hash=item2326359c05 sells the solid form of the fungi. Then again you might be placing too much stress on the tree by transplanting it. In that case, i recommend using the powdered or liquid form of the mycorrhizal fungi by green gro and inoculate the tree's roots simply by adding it to the top soil. Also, you might want to think about purchasing another variety of cherry blossom that is better suited to thrive in your climate zone. "Pink cloud" is a type of cherry blossom whose flowers are similar to that of the Kwanzan and seems to tolerate heat and humidity better than most flowering cherries. http://www.lecooke.com/cms/component/content/article/88-ask-the-grower/367-pink-cloud-flowering-cherries.html I truly hope this info helps. Cheers! Best.

These provide such a welcome late flourish. Only problem is when they bloom in cold wet weather, and the slugs then take their toll. One of the very last displays here, and yes, they can have a quiet elegance besides making a mass of color.

I was able to find a very informative site, which gives the origins of the different cherry blossom varieties (you might have to copy and paste the link) http://botanyboy.org/yoshino-cherry-tree-prunus-x-yedoensis-the-famous-japanese-cherry-blossom/ There are nine main different varieties of cherry that grow in the wild in Japan: Yamazakura (Prunus jamasakura) Oyamazakura (Prunus sargentii) Kasumisakura (Prunus verecunda) Oshimazakura (Prunus speciosa) Edohigan (Prunus Ascendens spachiana) Mamesakura (Prunus incise) Choujizakura (Prunus apetala) Minezakura (Prunus nipponica) Miyamazakura (Prunus maximowiczii) The Yoshino cherry was the result of a single hybridization between Edohigan and Oshimazakura. Cherries with the name 'Serrulata' are those found in the Satozakura group, which are the cultivated cherries. These derive mainly from a number of the wild Japanese varieties listed above. In addition, there is the Kanhizakura (Prunus campanulata), which was brought to Japan much later, and can tolerate warmer climates.