How Deep To Plant Iris Bulbs

Place the bulb on the mound.

How deep to plant iris bulbs. Reblooming Bearded Iris Bernices Legacy- Rare Red. If your bulb is an inch 25 cm long you will plant it about 3 inches 8 cm deep. In order to give your beautiful iris the best chance of survival in your garden bed be sure to plant the iris bulb just below the soil surface.

That is measure from the bottom of the bulb to the surface of the soil. As soon as you receive your iris bulbs iris bulbs in the post try to plant as soon as possible. Full sun Plant your irises where they will receive full sun.

One common mistake first-timers make when planting irises is to plant them too deep. Work the soil amendments into the top 4 to 6 inches of soil. While it can tolerate full sun it grows best when planted in partial shade.

Increasing means make new rhizomes you can divide out later for more Iris. Dig a hole as deep as the iris bulb. However depending on the growing conditions in your region your new plants may benefit from some additional steps.

After plants finish blooming cut off the entire flowering stem leaving just the leaves. As with all small flowering bulbs they look best when planted in natural tightly planted groupings. These two varieties Iris reticulata and Iris histrioides bulbs can be planted much more closely at 4 inches apart and 3 inches deep.

At just six to nine inches it attracts bees and hummingbirds when it blooms between March and May. In climates with hot summers plant the rhizome just below the soil surface. July 7 2021.