Spring Planting: this product will be shipped late April through May according to your hardiness zone.
Iris ensata. A lovely Japanese Iris with extra large flowers, 'Tiramisu' has ruffled, silvery-white petals with a jaunty grape-purple edge and a sunny-yellow eye-zone. Height 36-40". No.1 root.
Sold as: Pkg of 1
It is very important to plant as soon as possible after you receive them. If it is necessary to store them for a short time before planting them, open the plastic bags. If the roots appear dry, soak them for a few hours in warm water. Store in slightly moist peat moss in a cold, but not freezing location until you can plant. They can also be placed in pots of soil if planting will be delayed for more than 2 weeks. Use any peat-based potting soil and pots with drainage holes.
Soak bare-root perennials in water for a few hours before planting.
Irises need at least half a day of sun and well-drained soil. Without enough sun, they won’t bloom. They prefer fertile, neutral to slightly acidic soil. If your soil is very acidic, sweeten it with a bit of lime, and forbear summer watering, which can lead to rot.
Plant rhizomes singly or in groups of three with the fans outermost, 1 to 2 feet apart, depending on the size. Dig a shallow hole 10 inches in diameter and 4 inches deep. Make a ridge of soil down the middle and place the rhizome on the ridge, spreading roots down both sides. Fill the hole with soil and firm it gently.
Grow in full sun and well-drained soil. They form large clumps and live for many years. Most require dry soil during the summer in order to bloom reliably in following years.
After 2 to 5 years, when clumps become congested or lose vitality and stop blooming, divide and replant sound rhizomes in fresh soil. The best time to replant irises is soon after bloom.