Helena, Montana. 
HARDY PERENNIALS—(Continued) 81 
Our Hardy Rock Garden Plants 
How to Moke a Rock Garden 
The rock garden should be constructed in a 
spot that Is subject to full light and to good 
aeration. Any natural slope in the ground can 
also be used to good advantage. Take ad¬ 
vantage of any natural outcropping of rock on 
your grounds. 
Rocks will usually be gathered from the ner- 
est and most easily accessible source. Weather¬ 
worn rocks produce a pretty and natural effect, 
and on rather sharp sloping ledges the use of 
porous and water-holding rocks is much in or¬ 
der because it is in these positions that the con¬ 
servation of moisture is a large factor. Go to 
both extremes in choosing rock sizes as too 
many rocks of either a large or small size tend 
to make the effect unnatural. 
A good well drained garden loam is fine for 
a majority of rock garden plants. 
The soil should be thoroughly prepared first 
and then the existing grades and the desired 
contours should be laid out in proportion. The 
bottom rocks should be placed first and anchor 
the rocks firmly by thoroughly tamping. Ar¬ 
range rocks on slopes so that erosion by water 
is checked and so there will be plenty of light 
and air for the plants. 
The best time to plant is in the Spring, although many of the hardy pot grown rock plants can be 
transplanted equally as successfully In the Pall under Montana conditions. If you are in doubt as to 
which plants to use for Fall planting just drop us a line and we shall be glad to advise you. 
We are ready to help you at any time with your rock garden ventures. Our 48 years’ experience 
of growing and selection under conditions found in Montana and the Northwest gives you something 
no other firm can offer you. Following is a list of rock garden plants which are adaptable to conditions 
in Montana and the Northwest and for complete descriptions turn back through the Perennial section of 
this Year Book. 
A Model Rock Garden at Our Nursery 
Drive in and See It 
The following plants adaptable for rock gardens are described and priced in the Perennial Section: 
Alyssum Saxatile—Gold Tuft 
Arabis Alpina—Rock Cress 
Arenaria—^aespitosa 
Armeria Formosa—Sea Pink 
Aubretla—Rainbow Rock Cress 
Campanula Rotundifolia Olympica 
Cerastium-Tomentosum—Snow in Summer 
Campanula-Carpatica—Harebell 
Cherianthus—Siberian Wallflower 
Delphinium—Chinese 
1 
Our Special Rock Garden Plant Collection 
$2 35 I 
strong Potted Plants, different varie- 
I ^ ties, blooming size, selected by ns, all 
’ ^ named (Value, $3.15), for only.. 
Prepaid to You 
(A Wonderful Gift for Your Garden Loving Friends) 
-♦ 
! 
I 
! 
•Hh 
Rose Rouletti—Miniature Rock Rose 
Just Imagine a full grown rose bush small enough to place 
beneath a water glass. The tiny buds are perfectly formed, 
opening into miniature double rose-pink flowers about the 
size of a dime. May be used as a pot plant or grown outside 
in the rock garden, or for edging around the rose garden 
and flower bed. It is hardy. Fine for rock gardens, borders 
and as a house plant. Strong plants, grown in pots, each, 
50c; 3 for $1.35, postpaid. 
Dianthus—Cheddar Pink 
Dianthus—Red Montana 
Dianthus—Hardy Grenadine Carnation 
Dianthus Plumarius—Clove Pinks 
Dianthus—Highland Queen 
Dianthus—All varieties listed. 
Edelweiss-Alpinum 
Ferns—Hardy 
Geum—Lady Stratheden 
Helianthemum—Rock Rose 
Huechera—Coral Bells 
Iberis Sempervirens 
Iceland Poppy 
Iris Pumlla Cyanea—Dwarf Purple 
Lysimachia—(Creeping Jenny 
Lily of the Valley 
Linum—Blue Flax 
Monarda—Didyma Cambridge Scarlet 
Myosotis—Forget-Me-Not 
Nepeta-Mussini 
Nepeta—Nervosa 
Penstemon—Blue Gem 
Platycodon—Balloon Flower 
Phlox—Subulata Rosea 
Phlox 
Plumbago-Larpentae 
Primula-Auricula 
Primula-Polyanthus 
Salvia—^Azurea 
Sedums—All varieties listed 
Stokesia-Cyanea 
Trolllus 
Veronica-Speedwell 
Veronica-Repens 
Veronica-Incana 
Viola 
A View in Our Large Plant and Seed Proving Grounds 
Rose Rouletti 
