Blue Flag Compact Iris - 3 root divisions

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SKU: 5120

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Description

How to plant beardless iris

Full planting guide →
When to plant
Spring once the soil can be worked, or August through October at least 4 weeks before your first hard freeze
Depth
Siberian and blue flag iris: rhizome 1 inch deep, a little deeper in sandy soil. Japanese iris: about 2 inches deep
Spacing
Siberian: 18–24 inches apart. Japanese: 12–18 inches, or 18–24 inches to delay crowding
Sun
At least 6 hours of direct sun; midday shade in hot southern areas
Water
At least 1 inch a week after planting; Japanese iris want 1–2 inches a week and damp soil year-round
Soil
Rich in organic matter. Siberian: pH 6.0–7.0. Japanese: acidic, pH 5.0–6.5, no lime

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