 Tulips
Daffodils
Hyacinth
Crocus
Allium
Lilies
Iris
Other Bulbs
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The general rule of thumb for planting spring bulbs is to plant two to
three times as deep as the bulbs is tall. This means most large bulbs
like tulips
or daffodils
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 food for bulbs. 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.
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How-To: Planting & Care of Bulbs: Depth
