Siberian Iris

About this plant

Iris sibirica 'Caesar's Brother' is a distinguished perennial prized for its intensely colored, velvety dark violet-purple flowers. These elegant blooms, borne on tall, slender stems, rise gracefully above attractive, upright, grass-like foliage, creating a striking vertical element in the landscape. Perfect for borders, mass plantings, or alongside ponds and streams, this iris brings sophisticated charm and a classic garden aesthetic. Its robust nature and ability to thrive in a variety of conditions make it a favorite among discerning gardeners. Blooming in late spring to early summer, 'Caesar's Brother' provides a vibrant splash of color when many other perennials are just beginning their show. The unique flower form, characteristic of Siberian irises, adds textural interest to the garden, and its clumping habit ensures a neat and tidy appearance. Beyond its undeniable beauty, this iris is remarkably low-maintenance, offering stunning returns for minimal effort. It establishes quickly and forms impressive clumps over time, requiring little fuss once settled.

Installation timing

When we're in season, outside of the winter months, our goal is to get your plants installed within about two weeks. That window gives us enough time to secure your plants from our supplier and find a spot on the schedule. Throughout the process we stay in touch through notifications and your existing client portal on the main A Cut Above website, which is separate from this landscaping plants shop.

Care & maintenance

Easily grown in average to wet soils. Divide clumps every 3-5 years to maintain vigor. Remove spent flower stalks to encourage neatness, but leave foliage until it yellows naturally in fall to support plant health.

Watering suggestions

Proper watering is the single most important factor in your plant's survival after installation. Newly installed plants have a limited root system and rely on you for consistent moisture while they establish.

• First 2 weeks: Water deeply every day (or every other day in cooler, wet weather), soaking the root ball and surrounding soil.
• Weeks 3–12: Water deeply 2–3 times per week, adjusting for rain, heat, and soil drainage.
• After establishment: Water deeply about once a week during the growing season, and more often in extreme heat or drought.
• How to check: Stick a finger 2–3 inches into the soil near the roots — if it's dry, it's time to water. Deep, less-frequent watering encourages strong roots; shallow daily sprinkles do not.
• Avoid: Overwatering (soggy, waterlogged soil) is just as harmful as underwatering and can drown roots.

Watering needs vary by plant, season, soil, and exposure. Because proper watering is the customer's responsibility after installation, please make sure you understand and can follow these suggestions before ordering.

Good to know: plants and trees purchased from and installed by A Cut Above include a one-year limited warranty from the date of installation. Because plant survival depends heavily on proper watering and care after installation, losses caused by improper care, neglect, animal or chemical damage, or extreme weather are not covered, and we must be given the chance to inspect a struggling plant before it's removed or replaced. Coverage is one replacement per plant. Read our warranty info.