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Planting Instructions for Iris sibirica (Siberian iris):

Bloom Time:  Early summer Light:  Full sun to part shade
Soil:  Average to rich, moist but well-drained Moisture:  Average to slightly moist
Planting Depth:  Top of crown/base of foliage 1" below soil, mulch 1" Spacing:  18 to 24"

Upon arrival:  Unpack box and check that you have everything on your packing list. Iris sibirica likes to be slightly dry when dormant, but some moisture in the bag is okay too. Plant everything within a few days.

Soil/Location:  Plant your Siberian iris towards the back of the garden in full sun to part shade in average to rich, moist but well-draining soil. They especially enjoy areas with consistent moisture but are very adaptable and even drought tolerant once established.

Moisture:  Iris sibirica doesn't like to dry out too much but are drought tolerant once established. Keep them evenly moist when possible, watering them deeply two or three times a week until they are established.

Spacing:  18 to 24" apart

Depth:  New roots sprout from the base of the foliage so make sure the top of the crown/base of the foliage is completely buried about 1" deep and then mulch them about 1" after planting to help keep them cool and moist.

General Instructions:  Amend your garden with compost or peat humus to enrich or loosen the soil. Iris sibirica grows fine in just about any good, well-draining soil, but by giving them some good compost will help them grow and bloom better. Mix a couple teaspoons of garden food or bone meal into the planting hole and plant at the depth listed above. After planting you can water in once really good and then they shouldn't need to be watered again until after they are sprouted and actively growing. Once growing water deeply two to three times a week, if needed, until they are established.

Landscape Uses:  Siberian iris are excellent for the back of the perennial garden where their foliage will provide a nice vertical backdrop all season long for shorter, clumping perennials. Combine them with Peonies, Baptisia, poppies, and other types of Iris for a great spring show.

Hallson Gardens
PO Box 220
Brooklyn, MI 49230

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