Find a location to plant Arum italicum bulbs in the spring. The Arum italicum can grow in almost any area from full sun to full shade.
Prepare the planting bed. Turn the soil with a garden fork or a tiller to a depth of 10 inches. Level the soil with a rake.
Dig holes 3 to 5 inches deep. There is a special bulb-digging tool that can be used. Space the holes 12 inches apart.
Add bulb fertilizer into the planting hole. The amount of fertilizer to use varies. Read and follow label directions for amounts to use.
Examine the bulbs. The top of the bulb is the pointed end and the roots come out on the fatter end. If you cannot tell the difference, plant the bulb sideways. The plant will grow.
Cover the bulbs with soil and then place a marker near each bulb to identify them when they begin to grow.
Water the garden area thoroughly or to a depth of 6 inches. Provide an inch of water every week during the spring, summer and fall months, but do not water if your area has received sufficient rainfall amounts.