The best time to plant is spring up to June first, 
but with a little care these pot-grown plants may be 
handled safely up to October. Late Fall planting is 
dangerous, and no species should be set in full sun 
after May. 
No winter cover or mulch except the stone mulch 
should be used on Lapponicum or Saluenense types. 
Anyone unable to abstain from mulching should 
practise it only on such species as Keiskii or race- 
mosum, which will not be harmed by it if it is acid 
and light, and which may even be benefited. Avoid 
fertilizers. 
In addition to the Rhododendrons here described 
are many more of equal or even of greater interest, 
some too rare and scarce, others too newly intro¬ 
duced for inclusion now. Still others await the out¬ 
come of hardiness tests. A few of those offered last 
season are so nearly sold out that they must be left 
out of the catalog until a sufficient supply can be 
propagated. 
On the last two pages will be found a list of the species now 
growing here, some of which, though not cataloged, are for sale 
in small quantities to collectors of rare plants or others especially 
interested. Detailed information furnished on any species. 
