VERONICA RUPESTRIS NANA. Forms a dark. 
shiny gn^een carpet. Deep blue flowers. May. 
VIOLA ODORATA. Sweet scented. Hardy, blue. 
May and fall. 
VIOLA ROSIN A. Hardy pink violet so sweet it wiB 
perfume the grarden. Blooms in May and fall. 
SEMPERVIVUMS (Hens and Chickens) 
Sempervivums are among: our most attractive 
plants for the rock grarden. Planted in ^ud sun 
many of the rosettes lose much of their ch racter- 
istic color during: excessive heat of the summer, but 
early in September begrin taking: on their blue, v.o- 
let, ruby and comingrling: shades, presenting: an at¬ 
tractive array of color, many almost as red as 
roses, for 8 or 9 months of the year. 
Collecting: Sempervivums is a fascinating: g:ame. 
There is an almost endless variety with more or less 
i idividual charm. One botanical g:arden in Eu- 
i\;pe claims more than 6000 different forms. Ihe 
nomenclature, however, is in an almost hopeless 
ftUate of confusion. R. Lloyd Praeger, B.A., in his 
recent work (An account of the Sempervivum 
Group, 1932) has this to say. “To attempt to name 
a collection of Sempervivums as now commonly 
found in cultivation is impossible. Most of the 
names in European gardens are hopelessly wrong." 
Owing to this prevailing condition we do n »t guar¬ 
antee names of Sempervivums. The names not 
followed by are probably true. Names in par¬ 
enthesis are our own nursery names, not the true 
one. We have many varieties of Sempervivums 
expect to add to our list from year to year as stock 
justifies. Figures following names indicate diameter 
of rosettes during growing season under good cul¬ 
tivation. 
A FEW CULTURAL HINTS FOR 
SEMPERVIVUMS 
First thorough drainage is necessary. With clay 
soil excellent results are had by raised beds, to 
which has been added leaf mold or black humus 
and thoroughly decayed manure with a dressing of 
sand and ground limestone or marl. Lime in some 
form is essential for best results with all semper¬ 
vivums except the Arachnoideum and Pubescen^ia 
groups where it should be omitted. Only fo enoon 
sun or alternate sun arid shade give best results 
in our climate. 
During excessive drouth gpve a thorough soaking 
two or three times a week, not forgetting to pulver¬ 
ize the soil around the plants next day as soon as 
conditions are favorable. These few suggestions 
faithfully adhered to will surprise the natives. 
