'Hall of Marble' Japanese Iris (Iris ensata) aquatic iris for ponds

'Hall of Marble' Japanese Iris (Iris ensata) aquatic iris for ponds

Hall of Marble Iris is a beautiful Iris ensata, with blooms of purple and white in a marbled pattern. The blooms are large (up to 7") and ornate for a Japanese Iris, with wide falls. The thin, upright foliage creates a nice accent plant.

Hall of Marble is a semi-aquatic iris; it may be grown in very shallow water along pond edges and streambeds, and also does great in regular moist soil in the garden. Iris ensata is generally better in moist soil rather than having its crown submerged, but we have found Hall of Marble to do very well as a pond plant with its crown submerged (to a maximum of 2").

For information on the different groups of aquatic iris and their advantages and disadvantages in different climates and other specific conditions, please read our blog article Aquatic Iris for Ponds, Water Features and Terrestrial Gardens

(Iris ensata was formerly known as Iris kaempferi)

Hardiness Zone: 5-10 (avoid hot desert climates)
Light Requirements: Full Sun to Part Shade
Height: 40+" - Spread: 12" to 24"
Water Depth: Moist to Wet Soil; may tolerate water slightly over the crown, especially in the moving water of a streambed
Recommended planting container: We recommend a 10" x 6" fabric pot to grow a regular sized plant, or a 12.5" x 7" or 15" x 6" fabric pot to grow a specimen sized plant. Click on any fabric pot link to read about why fabric pots work better than hard plastic pots!

FERTILIZING: For best health and growth, we recommend fertilizing regularly (unless using the plants in a plant filtration system!). Use Pondtabbs 20 count, 60 count, or 300 count for fast release, or Aquascape 6 count or 12 count capsules for slow release (once a year) fertilizing. Aquascape is preferred for low maintenance, but Pondtabbs are useful in Spring when Aquascape is slow to start in low temperatures. Pondtabbs are also useful for a quick extra nutrient push for extra bloom, and for mid-summer fertilizing of a new plant (we don't recommend using slow release fertilizer in mid-summer or later in cold climates, as plants should run out of fertilizer at the end of the year to encourage dormancy in cold climates).

Plants are shipped bare root or in starter pots, and will require planting upon arrival. For in depth planting and care instructions visit our Planting and Care Instructions for Shallow Water and Bog Plants.

For information on using plants for pond filtration, please read our blog on this topic!