| When to Plant: | |
| Spring |
| Blooms: | |
| Summer |
| Light Requirements: | |
| Full Sun to Partial Shade |
| Plant Height: | ||
| 18-36" | ||
| Hardiness Zones: | |
| Grow as Perennial in zones 4-9. Grow as Annual elsewhere. Find Your Zone |
| Planting Depth: | |
| 1-2" |
| Plant Spacing: | |
| 12-24" |
| Plant Type: | |
| Rhizome |
The Louisiana Iris is native to the southeastern United States but is proving to be highly adaptable to other climates and soils.
Aptly named for its region of origin, this species grows in swamps, along riversides and damp hillsides. It tolerates a wide range of moisture conditions as long as it receives at least an inch of water per week.
Soil preparation: The ideal soil is porous and drains well and yet still holds enough water for the roots. If your soil is heavy clay and drains slowly, or very sandy and does not hold water, add organic soil amendments (peat moss or ground bark). Spread a 3-4" layer of soil amendment, add fertilizer and incorporate together into the soil to a depth of 10".
To plant: Dig a hole 4-6" deep in a well drained location. Place the roots 12-24" apart. Cover with soil and water. Mulch in extreme climates.
Mass planting: When planting a large quantity of roots in one bed, excavate the entire area to 4-6" deep, work fertilizer into the bottom of the trench, set out the roots and then cover them all at once.
After flowering, cut out the flower stalk leaving the foliage.
Need to be dug, divided and replanted every 3-6 years in non-hardy zones.
