How to Plant and Grow 
Keith’s Cultivated Blueberries 
Will Grow Anywhere—Garden, Lawns, Along Walks 
You can easily grow Keith's Cultivated Blueberries. At one end of the garden, on your lawn 
like shrubs, along your walks or drives, as a hedge planting. They can be grown anywhere with 
little extra care. 
Easy to Grow 
We used to think Blueberries could be grown only in low marshes. NOT SO NOW. Now they 
can be successfully grown, with very little soil preparation, anywhere about your yard, in your 
garden or in cultivated fields. They can be as easily grown as Roses or any ordinary shrub and 
in the same places. Those who have planted Keith's Cultivated Blueberry bushes now have plenty 
of berries. It's easy to have them. It’s no trick at all nowadays to grow and have plenty of big 
sweet Blueberries. No need trudging through wet, boggy marshes any more. 
In Garden on Lawn Planting 
Keith’s Cultivated Blueberries are as easily grown as Roses or shrubs. All you have to do is 
to see that the soil is moist, loose and acid. To accomplish these, we suggest the following: Dig 
a hole 18 inches across (larger for larger bushes) and 16 inches deep, and fill half full with a 
mixture of one part your soil, two parts acid peat, leaf mold, marsh soil, or BETTER YET, Keith's 
Acid Peat Humus (see below) which we guarantee for our Cultivated Blueberries. Pack this mix- 
ture firmly in the bottom half of the hole, then set the bush in on packed mixture and fill in around 
the roots and on top of them with the mixture until the hole is full. Pack down very firm, then 
water thoroughly until the whole mixture, from the bottom to top, is thoroughly soaked with water, 
rain water preferred. DON’T USE WATER WITH LIME IN IT. It will sweeten the soil. The soil 
must be kept acid, and don't let it become dry, then you can grow lots of Blueberries. COMPLETE 
PLANTING INSTRUCTIONS AND CARE COME WITH EACH SHIPMENT. We suggest using Ra- 
Pid-Gro in the water. It’s a good Blueberry fertilizer (page 10). 
Field Culture 
Remember, the Blueberry must have an acid soil (pH 4.0 to 5.1) and plenty of water. Keep this 
in mind in selecting your soil for commercial plantings. A drained Blueberry (Huckleberry) marsh 
is ideal. Growths of White Cedar, Leatherleaf, Red Maple, etc., are indications of suitable soil. 
But to make sure always have the soil tested for acidity. Water table should be 30 to 48 inches 
below surface. Some soils are found to be too acid and this can be corrected by the addition of 
lime. See your county agricultural agent. Low meadow lands are sometimes suitable. Set plants 
.6 feet in row, spacing rows 10 feet apart (about 800 per acre). Write us for further information. 
Here you see one of Keith’s Bearing-Age Cultivat- 
ed Blueberry Bushes. Note heavy mass of roots, 
large top growth, well branched. Loaded with fruit 
buds which develop into berries this summer. Keith’s 
Bearing-Age Blueberry Bushes are the largest and 
best Blueberry bushes obtainable. This bush is the 
six-year size and shipped direct to you from the 
nursery row. 
How to Prepare Soil 
for Blueberry Growing 
For the best results in growth and production, 
Blueberries require an acid soil which shows an 
acid test from 4.0 to 5.1 pH. Since most garden and 
lawn soils are more or less ‘‘sweet’’, they can be 
made suitable by mixing acid soils with them, or by adding Keith's Acid 
Peat Humus (see this page), two parts of it to one part of your soil. Sweet” 
soils may also be made acid by the addition of Aluminum Sulphate (2 tea- 
spoonfuls per gal. of water) to the soil during planting, and.at least twice 
during summer three weeks apart. 
Growing Blueberries in Tanks, Boxes, etc. 
(See page 3) 
Blueberries may be grown in tanks, boxes, 
etc. See how on page 3. 
Growing Blueberries in Half-Barrel (See p. 3) 
Blueberries may be grown in half oil barrel, 
tarvia barrel, etc., submerged in your lawn, 
near house, etc., (see page 3). 
Keith’s Acid Peat Humus 
Ideal for Blueberry Growing 
Keith's Acid Peat Humus has the right acidity 
and contains the necessary plant humus for grow- 
ing Blueberries. It is taken from a marsh where 
layer upon layer of organic matter has been de- 
posited during ages past. We suggest mixing it 
at least two parts to one of your soil, or better Ga Acid 
yet leaf mold taken from under trees in woods. Peat Humus 
To properly prepare a soil for Blueberries, we suggest: Mix two parts of 
Keith’s Acid Peat Humus to one part of your soil. When possible, mix in leaf 
mold, well rotted sawdust, top soil from woods. These will add organic 
(humus) matter to soil and help make and keep it acid. Soil from a Blueberry 
or Huckleberry marsh will be ideal, providing its acidity is 4.0 to 5.1 pH. 
Consult your County Agricultural Agent. He might tell you where and how 
to test your soil for acidity. 
After the bushes are planted, it is well to mulch the soil under the bushes 
(2 to 3 ft. out from base) with well rotted sawdust, leaf mold, or Keith's Acid 
The more acid your soil and the more humus it 
contains, the less Acid Peat Humus necessary. It 
is also very beneficial in building and maintain- 
ing lawns, enriching the soil around Roses, 
FOR GROWING 
BLUEBERRIES 
Peat Humus. This keeps the soil moist and acid. Water when necessary with 
water to which Aluminum Sulphate has been added. (See paragraph below). 
In the spring before growth, it is well to add a small handfull of garden 
fertilizer of an 8-8-8 formula per bush. Another application might be added 
in July, not later. 
shrubs, growing Rhododendrons, Holly, etc. It is 
a soil builder and makes plants grow. 
Price: 112-bu. bag, $1.85; 3 or more at $1.65 
each. 
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Extra Peat Humus—Good Investment 
For lasting results and for better bush growth we suggest your get- 
ting an extra bag of Keith's Acid Peat Humus to be used in planting 
along with what we send with the bushes when ordered in the 
“Ready-to-Bear Blueberry Gardens.’ The holes can be dug a little 
wider and thereby afford a larger prepared soil for the roots to ex- 
pand and grow into. If you order an extra bag along with the ‘Ready- 
to-Bear Blueberry Gardens,” a special price of $1.50 per bag will be 
allowed. 
Aiuminum Sulphate 
Chemists have found that ‘’sweet'’ soils can be made acid by the addition 
of Aluminum Sulphate (Alum), obtainable at most drug stores. And since 
Blueberries require an acid soil, ‘‘sweet'’ soils can be made sufficiently acid 
for them by the addition of Aluminum Sulphate, the amount to be used de- 
pends upon how ‘sweet’ your soil is. Sandy soils require more than loam 
soil. Generally speaking, two teaspoonfuls per gallon of water, applied one 
gallon per bush at least three times during the season, once in the spring 
before growth starts and twice during summer three weeks apart up to when 
berries begin to turn blue. When planting, apply the first gallon when the 
bushes are set. PRICE: 66c per 1 lb. in states in group 1 and 2, beyond add 
2lc per 17 lb. See bottom page 10. 
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