16 
to be already fifteen feet in diameter, and occasionally plants have 
come to the United States at different times from the Yokohama Nur- 
sery Company. Mr. Wilson during his journey in Korea in 1917 secured 
a large quantity of seeds which have been widely distributed by the 
Arboretum in the United States and Europe, and have produced sev- 
eral thousand plants; and there is every reason to hope therefore that 
this, the loveliest of the hardy Asiatic Azaleas, will become a common 
inhabitant of northern gardens. It is rather difficult, however, to 
transplant when young and it has been found at the Arboretum that 
the best way to manage it is to pot one-year-old seedlings and grow 
them in pots for a year before transplanting them to the open ground. 
Another Korean Azalea is also in flower, or just opening its flowers. 
This is Rhododendron (Azalea) poukhanense, which was also introduced 
into the Arboretum from seed collected by Mr. Jack in Korea in 1892. 
This is a common plant on the bare mountain slopes in the neighbor- 
hood of Seoul. As it grows here this Azalea is a low, wide, compact 
bush which until this year has never failed to cover itself with large, 
rose-pink flowers which have a strong and pleasant fragrance. It is 
much liked in the Arboretum but some persons object to the tint of 
its rose-pink flowera. During the past winter for the first time a good 
many of the flower-buds have been killed, probably by the extremely 
cold night in January which did damage to the flower-buds of several 
plants. There is a large bed of the original plants of this Azalea on 
the upper side of Azalea Path which has recently been increased by 
seedlings, which are not difficult to raise. The plants ripen good crops 
of seed and there is no reason why it should not become more common 
in gardens than it is at present. 
Double-flowered Cherry-trees. A few of these Japanese trees are 
flowering well; the largest and handsomest of them is the specimen of 
Prunus Lannesiana form ochichima now growing in the Peter’s Hill 
Nursery, which was received from the Spath Nursery at Berlin in 1911. 
This tree is now very beautiful with its large pale pink flowers. There 
are smaller plants of this form among the Cherries on the right hand 
side of the Forest Hills Road, where too are blooming three double- 
flowered forms of the Japanese Prunus serrulata var. sachalinensis 
which are among the most beautiful and satisfactory of all these trees 
which can be grown in Massachusetts. The form fugenso, now often 
cultivated under the name of James H. Veitch, is one of the most 
beautiful of all double-flowered Cherry-trees. The flowers are rose- 
pink and are distinguished by two leaf-life carpels. Another form, 
alba-rosea, also with two leaf- like carpels, has flowers pink in the bud, 
becoming white as they open. The third is the form sekiyama; this 
blooms later than many of the other forms and has large double, rich 
rose-colored flowers. Mr. Wilson, who has had the best possible oppor- 
tunity to see the double-flowered Cherry-trees growing in Japan, con- 
siders this the handsomest of them all. A large collection of these 
double-flowered Cherry-trees was planted two years ago on the south- 
ern slope of Bussey Hill, but the plants are still small and only a few 
of them are showing occasional flowers this year. 
