M SEED IN YOUR R 
newed each year, the color arrangements can 
always be varied, and your rock garden will 
never be a monotonous spot. Annuals are also 
a wonderful help for securing color and foliage 
masses during the first season the garden is 
built, while the perennials are getting a foot- 
hold. Each spring there are likely to be bare 
spots, too, caused by the winter-killing of 
some of the perennials. Fill these spaces with 
gay annuals to complete the garden picture. 
Sow Seed at the Right Time 
Practically all rock garden annuals, started 
from seed in spring, will furnish a wealth of 
bloom the same summer. A few of the peren- 
nials, if the seed is sown early enough in spring, 
will bloom the first season. The seed of most 
perennials, though, should be sown in sum- 
mer in order to make strong healthy plants 
that will be well on their way toward blossom- 
ing when spring comes. 
Suit Plants and Soil to Each Other 
Most rock plants do not require special soil 
mixtures. They do well in ordinary garden 
soil that has excellent drainage and is not too 
rich. A good loam mixed with plenty of sharp 
sand and humus is all that is necessary. Barn- 
yard manure is too rich for most rock plants. 
However, even when the same kind of soil is 
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