Iris cristata dwarf crested iris
Characteristics
Descriptions
Light Requirements
Soil Moisture
Soil Description
Height
Recommended Spacing
Bloom Time
Bloom Color
Hardiness Zone
Description
Iris cristata might be a small plant, but it's high in charm and visual appeal. The arching leaves are broad and form dense mats a mere 4" to 6" tall. It is a prolific bloomer, producing spectacular drifts of violet to lavender to white flowers. The sepals of each flower bear distinctive, crested ridges on white signal bordered with purple. The blooming period occurs from mid-spring to early summer. It occurs in bottomlands, on rocky slopes, and in woodlands in the eastern U.S. Known as dwarf crested iris, this spring gem is a delightful addition to a shady woodland garden, rock garden, or path edge.
Cultivation
Dwarf crested irises perform spectacularly well in full to part-shade, and average, well-drained soil rich in organic material. Once established, the plants are remarkably drought tolerant, and are perfectly adapted to the dry summer conditions typical of mesic deciduous woodlands. Iris cristata can be grown in part sun if the soil is kept moist. The species is low maintenance, easy to grow, and adaptable. Zones 5-8
Recommended Spacing
Space plants 12" apart on center.
Plants spread rapidly by a rhizomatous root system to form dense colonies and a formidable ground cover.
Companion Plants
Dwarf crested iris grows well with other woodland species like Polystichum acrosticoides (Christmas fern), Uvularia grandiflora (largeflower bellwort), Geranium maculatum (spotted geranium), and Heuchera americana (American alumroot)
Additional Notes
Dwarf crested iris is an ideal plant for shade gardens, where it will attract hummingbirds and bees. The specific epithet means crested, which refers to the crested ridges running along the center of the sepals. The crested flowers make Iris cristata easy to distinguish from Iris verna, which has a similar native range but lacks the crests.
Pricing & Availability
Note: Early spring shipments might include plants that have not yet broken dormancy, or have not been vernalized and will be frost-tender. Please use your best judgment when selecting your preferred ship week.
Why choose plants from the nearest grower? Choosing a the grower closest to you makes it more likely the plants are consistent with your ecoregion and better adapted to your location. In addition, shipping plants shorter distances typically uses fewer resources, something we can all get behind!
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$50 off orders of $750 or more
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Maps, Wetland Status & More
MAP OF NATIVE RANGE
Recorded County Distribution: USDA data.
Native To
| AL, AR, DC, GA, IL, IN, KY, MA, MD, MO, MS, NC, OH, OK, PA, SC, TN, VA, WV |
Legal Status
| Endangered | MD, PA |
Wetland Status
MAP OF WETLAND DELINEATION REGIONS
Interpreting Wetland Status
|
Code |
Status |
Designation |
Comment |
|
OBL |
Obligate Wetland |
Hydrophyte |
Almost always occur in wetlands |
|
FACW |
Facultative Wetland |
Hydrophyte |
Usually occur in wetlands, but may occur in non-wetlands |
|
FAC |
Facultative |
Hydrophyte |
Occur in wetlands and non-wetlands |
|
FACU |
Facultative Upland |
Nonhydrophyte |
Usually occur in non-wetlands, but may occur in wetlands |
|
UPL |
Obligate Upland |
Nonhydrophyte |
Almost never occur in wetlands |
Classification
| Kingdom | Plantae | Plants |
| Subkingdom | Tracheobionta | Vascular plants |
| Superdivision | Spermatophyta | Seed plants |
| Division | Magnoliophyta | Flowering plants |
| Class | Liliopsida | Monocotyledons |
| Subclass | Liliidae | |
| Order | Liliales | |
| Family | Iridaceae | Iris family |
| Genus | Iris | iris |
| Species | Iris cristata | dwarf crested iris |
ADDITIONAL COMMON NAMES:
crested iris
SCIENTIFIC SYNONYMS:
Neubeckia cristata
Plant Sizes
Sizes info
Shipping & Planting
SHIPPING INFO:
Shipping is free on all plants orders!
Your plants will ship using each grower’s preferred method: FedEx Ground, UPS Ground, or Spee-Dee Ground (in select midwestern states). Our growers ship orders Monday through Wednesday. The farther your plants need to travel, the earlier in the week they will ship. The goal is to have all plants delivered by the end of the week.
Shipping plugs:
Plugs are shipped in full flats, sometimes also referred to as trays. Multiple flats can be shipped in a single box. The flats are wrapped in netting or craft paper to secure the plants, and spacers are used between flats to keep the plants from being crushed.
When you unpack your plugs, the plants will have been somewhat flattened by the netting or craft paper. They will straighten out within a couple of days. You may also gently “fluff” them a bit to speed up the process. In some cases, your plants might have been cut back before packing, if the grower deemed them to have become too tall for safe packaging. Don’t worry, though, these guys know what they’re doing and would not compromise the health of the plants. They’ll fill back in in no time.
After receiving your plants’ journey in a dark box, it will be important to acclimate them to sunlight again. Over a couple of days, you should gradually move them into their preferred light exposure, and water them as per their requirement.
Although we always recommend putting your plants in the ground as soon as possible, they can stay healthy in the flats for a considerable amount of time. The key is to respect their growing requirements: if the species requires full sun, do not store them in the shade. If it is best adapted to dry soil, do not over-water.
PLANTING INFO:
Planting plugs:
We consider plugs ready to ship when the plants’ roots have filled the entire liner cell and the plants can easily be pulled out. In some cases you will have to go about it gently, wiggling the plant by the crown, and possibly squeezing the bottom of the liner to compress the growing medium and release the roots. Other times, the plants will appear to be root bound. They are not in the traditional sense. The plants are healthy but they have used up all the growing medium available to them. Plugs are at an aggressive stage of growth. As soon as planted the roots will immediately expand into your native soil. They establish faster than plants in larger containers, because they don’t have the luxury of a lot of growing media that can inhibit the roots from venturing outside of their comfort zone.
We are not going to address area preparation because the process can be complex and is always site-specific. However, as a rule, we recommend disturbing the soil as little as possible, and we do not recommend amending the soil. If you chose the right plant for the right conditions they will thrive. Any disturbance and amendments will only encourage weeds to emerge that never had a chance to do so before.
Installing plugs cannot be easier: dig a hole large enough for the roots to fit snugly inside, then water them in to eliminate air gaps. We recommend using a soil knife, sometimes referred to as hori hori, or a drill-adapted auger if it’s a large installation. If you use an auger, you will need a powerful drill. Depending on the size of the project and the type of soil, the process can be beyond what an average drill will bear. Mulching is recommended after installation to help keep weeds down while the plants establish. Be sure to keep it away from the crown of the plants. For large projects, you may want to mulch the area before planting, rather than tiptoeing through it after the fact. As a side note: if you are installing plugs in the fall, you might want to plant them so that the crown is about ¾” lower than the surrounding soil. The winter’s freeze/thaw cycles can push plugs out if the roots did not have enough time to establish and anchor them in.