Iris, Louisiana Purple

Plant name: Louisiana Purple Iris

Scientific name: Iris louisiana (purple selection)

Plant description:
Louisiana Purple Iris is a rhizomatous perennial selected for its rich purple blooms and adaptability to moist growing conditions. This clump-forming iris develops upright fans of sword-shaped foliage and produces large, flat-faced flowers on sturdy stems in spring. Louisiana iris types are known for their vigorous growth and ability to naturalize in consistently moist soils.

Flower description:
Blooms are broad and open in form, displaying saturated purple petals with subtle veining and a contrasting signal patch near the base of each fall. Flowers typically appear in mid to late spring, with multiple buds per stem. The smooth petal texture and bold color provide strong visual impact in mass plantings.

Leaf description:
Leaves are tall, narrow, and strap-like with a smooth surface and medium to deep green color. Foliage grows in upright fans from thick rhizomes, creating vertical structure even when the plant is not in bloom.

Deciduous or evergreen:
Semi-evergreen to deciduous depending on climate. Foliage may die back in colder regions and regrow from the rhizome in spring.

USDA grow zones:
USDA Zones 5–9.

Mature height and width:
Typically 24–36 inches tall in bloom and 18–24 inches wide per clump, expanding gradually over time.

Landscape uses:
Well suited for rain gardens, pond edges, moist borders, and naturalized plantings. Its upright foliage and bold spring blooms make it effective in mixed perennial beds and wildlife-friendly gardens.

Native range:
Louisiana iris hybrids originate from species native to the southern United States and are widely cultivated in temperate regions.

Sun exposure:
Performs best in full sun to partial shade. Adequate sunlight promotes strong flowering and sturdy stems.

Water requirements:
Prefers consistently moist soil and tolerates wet conditions better than many other iris types. Adapts to average garden soil if kept evenly moist during active growth. Avoid prolonged drought stress.

Pests and problems:
Generally low maintenance. Occasional leaf spot or aphids may occur. Proper spacing and removal of old foliage help reduce disease risk.

Heat and sun tolerance: Cold tolerance:
Handles warm temperatures well when soil moisture is maintained. Cold hardy within its recommended zones, with rhizomes surviving winter dormancy underground.

Growing tips:
Plant rhizomes slightly below the soil surface in rich, moisture-retentive soil. Maintain consistent watering during the growing season to support flowering and healthy foliage. Divide clumps every few years to prevent overcrowding and maintain vigor. Position where the deep purple blooms can be appreciated against contrasting foliage for maximum visual effect.

---SHIPPING NOTICE PLEASE READ BEFORE PURCHASING LIVE PLANTS!---

 We WILL NOT refund the purchase of or the shipping cost of live plants purchased with the intent to be shipped to states that do not authorize importing live plants or to states with restrictions! Purchases to these states will be held for 30 days for pick-up at our Slidell, Louisiana store and the shipping cost associated with these purchases will be held for the care of the plant while waiting to be picked up. All sales are final. If the plant(s) purchased are not picked up within 30 days from the date of order, these items will be returned to our sales inventory and you WILL NOT be refunded. Thank you for understanding these policies.

Due to regulations, certain states have restrictions on importing plants. Please review the list below to ensure you're not attempting to order any restricted plants in your area.

**Important Note:** We do not ship any plants outside the U.S.

State-Specific Restrictions - We ARE NOT responsible for any plant(s) that are not listed in these restrictions. Purchaser bears all responsibility for making sure the plant(s) they desire to purchase are not banned from being imported to the shipping state:

Arizona: Juglans spp.  

California: Castanea spp., Juglans spp., Pinus spp., Quercus spp.  

Colorado: Some counties restrict Prunus spp. Please verify your local county regulations.  

Florida: Castanea spp., Cornus spp., Quercus spp., Cornus mas 

Georgia: Vaccinium spp.

Hawaii: Pinus spp. 

Idaho: Humulus lupulus, Mentha spp., Vitis spp.

Indiana: Fragraria spp., Rosa spp. 

Kansas: Juglans spp.

Michigan: Abies spp., Vaccinium spp.

Montana: Pinus spp.

Nevada: Allium spp.

, Mentha spp. 

New Jersey: Rosa spp.  

New York: Vitis spp.  

Oregon: Allium spp., Castanea spp., Corylus spp., Humulus lupulus, Quercus spp., Sambucus nigra, Ulmus spp., Vaccinium spp., Vitis spp.

Texas: Juglans spp. 

Washington: Allium spp., Castanea spp., Corylus spp., Humulus lupulus, Vaccinium spp., Vitis spp.  

Wisconsin: Abies spp., Pinus spp., Picea spp., Mentha spp. 

Additionally, we cannot ship plants in soil medium to the following states: AK, AL, AR, AZ, CA, HI, ID, KS, MS, MT, ND, NM, NV, OK, OR, SD, TX, UT, WA.