How to Plant Bulbs
Bulbs do not like clayey soil, nor do they like dampness; neither do they thrive on fresh manure.
Remembering this, you already know just about what kind of soil they need—well-drained, loamy soil, full of humus or well-rotted manure, and some sand; for sandy soil is needed by all bulbs.
If you do not have such garden soil, dig quite large holes with your trowel, and fill them with such a mixture. If you do not have well-rotted manure, use a sprinkling of bone meal.