The general rule of thumb for planting
is to plant two to three times as deep as the bulbs is tall.
This means most large bulbs like tulips
will be planted about 6 inches deep while smaller bulbs
will be planted 3-4 inches deep. The depth of planting should be measured
from the surface level of the soil to the shoulder of the bulb and the
eyes or crowns of the perennials
Distance between plants is measured from the center of one plant to the
center of the next.
There are two basic methods of planting. One is to dig individual holes
for each plant. This can be done with a garden trowel or one of the
special hole-cutting tools called bulb planters. Dig the hole several
inches deeper than the recommended planting depth and fill to base level
with a mixture of loose soil and Breck's Food for Bulbs and Perennials. Then place your
plant in the hole and cover it with loose soil. Using your fingers, gently
push the soil into position around the plant so there will be no air
pockets where water can collect.
If you are planting a quantity of plants in a single area, you may want to
dig an entire bed to planting depth. Then you can locate each plant just
where you want it before covering with soil. Press the soil into position
around each plant to eliminate air pockets.