Iris Garden
Planting
Plant the corms approximately 18 inches apart. By the second or third year, they will be be fully filled in.
Plant in full sunlight. Shade will only reduce the number of blooms a plant produces.
Plant so the roots are in the ground but the main swollen part of the root is lying on the ground - uncovered. If you cover this over too deeply, the plant will not bloom.
Iris Garden Design
If you're only growing a few plants, arrange them in your own iris garden in a triangle shape. The point of the triangle should point towards the spot you see this garden from.
This arrangement gives a sense of depth to the small planting.
In larger plantings, try to make a large block of these plants for maximum effect. Note that if you're only growing a few iris of different colors, then another plan is to mix them into the general garden and surround them with perennials. This allows you to hide the foliage after the massive blooms are finished.
Use variegated foliage iris up front where the variegation can be appreciated.
Color choice is whatever suits your fancy but do try to arrange the flowers so that contrasting colors are beside each other (yellow next to blue) for maximum "bang" in the garden design.
Plant fragrant species next to the edge of the garden to make it easier to bend and smell them.
And those would be the main tips in planting and growing an iris garden.
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