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Iris

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Bearded iris thrives in raised beds — excellent drainage prevents the rhizome rot that kills iris in clay. Plant rhizomes horizontally at the surface, barely covered. Divide every 3–4 years after bloom, in late summer. Remove old foliage fans to reduce disease.

At a glance

USDA Zones
3–9
Sun
Full sun (6+ hrs)
Water
Low — drought-tolerant once established
Soil
loam, sandy
pH
neutral
Spacing
18 in. between plants
SFG footprint
2×2 ft cell footprint

Planting & harvest windows

Northern Hemisphere timing. Adjust ±4–6 weeks based on your last/first frost dates.

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Harvest

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Good companions

Recommended varieties

Add Iris to your raised bed — the planner handles spacing and companion warnings automatically.

Open the planner →
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