Iris sibirica 'Caesar's Brother'

'Caesar's Brother' is an old, award-winning Iris sibirica variety that remains in great demand because few others can rival its deep, Pansy-violet coloring and exceptional vigor.

Siberian Irises combine easy care with grace and beauty. Group them together or scatter them throughout a perennial border or foundation planting. Their flowers rise above sturdy stems and slender leaves, and feature intricate, arching standards and ruffled falls. They make stunning cut flowers. Iris breeders are dramatically changing the range of colors, heights, and bloom times available in this group. Siberian Iris often begin to flower in late May, but the peak of bloom here is in the first half of June. Their thick roots drive down deeply, which makes them drought resistant (though they also thrive in damp soil) and great plants for holding steep banks in place. Each clump becomes huge, and when a group of them grows together, weeds can't grow in between. After bloom, the grassy leaves stand erect and green through the growing season. Siberian Iris struggle in the desert Southwest.

The Iris genus is named for the Greek goddess of the rainbow, and it’s easy to see why. These brilliantly colored, spring-flowering perennials are part of a huge plant family that contains upwards of 300 species. Iris range from timid and inconspicuous wildlings to the splendid and extravagant Tall Bearded Iris, which create striking vertical highlights in the late spring border. The chosen habitats of Iris range from standing water to formal borders, and there is scarcely a color or combination of colors that can't be found. Iris plants are fairly indestructible. They thrive in most parts of the country and are largely critter resistant. Adding to their appeal, they are magnets for hummingbirds and other pollinators. Even after bloom, the vertical foliage persists through the growing season. Plant a variety and enjoy a rainbow of colors that will return year after year in your garden.

For more information on growing Siberian Iris, click Growing Guide.

We want our customers to receive strong, healthy plants that are ready to thrive in their gardens and homes. Here's what we'd like you to know about our shipping practices.

Delivery Timing

We aim to deliver your plants at as close to the proper time for planting in your area as possible. To do so, we consider the USDA Hardiness Zone to which we're shipping, current and forecasted weather at the destination and along the shipping route, and whether your plants are ready for transplant.

In spring, we ship first to the warmest regions and move north as planting conditions improve. For fall deliveries, we begin with the coolest regions and work south. We frequently adjust shipping schedules when extreme weather could put plants at risk while in transit or soon after arrival.

Because different plants reach readiness at different rates and are weather-sensitive in varying degree, a single order may be delivered via multiple shipments. Plants sold as part of a collection, or that are otherwise meant to arrive together, will be shipped together. Please contact our customer service team with two weeks' advance notice if you anticipate being away at the expected time of delivery. 

Tracking information for each package is delivered via email. 

Plant & Container Sizes

We deliver plants in various sizes and stages of growth, and the product detail pages of our website indicate the form and/or pot size in which the plant will be delivered. Pot sizes range from 1 pint to 1 gallon and larger. Many perennials, roses, shrubs and vines are delivered bareroot - that is, not in a container at all. Bulbs and tubers are generally delivered bareroot and fully dormant. We choose container sizes and delivery methods based on how each plant grows best, how we can minimize transplant shock, and how to minimize unnecessary bulk/weight in shipment. 

Caring for Your Plants Upon Arrival

It is important to acclimate greenhouse-grown plants to life outdoors. All plant shipments include simple instructions for handling your plants upon arrival. Further how-to information, including planting instructions, is available on each plant's product page.

Choose a site in a sunny area where the soil is evenly moist. Siberian Iris will tolerate partial shade, and established plants will withstand dry spells, but full sun and moist soil yield the best results. Partial shade is required in warm inland areas of the West. Note that plants may grow so large in 4–5 years that moving or dividing them becomes difficult.

Using a trowel or shovel, dig the planting holes, spacing them according to the suggestions provided on your labels or cultural sheet. Set the roots in the holes, push soil back into the holes, covering the tops of the somewhat woody rhizomes with no more than 1″ of soil. Firm the soil by pushing down with both hands to eliminate air pockets. Finally, water thoroughly.

Please note: Bareroot plants dry out quickly once they are removed from their packaging. We strongly recommend that you keep the roots covered with packing material until you are ready to plant.

At White Flower Farm, we stand firmly behind every product we sell and are proud to offer a money-back guarantee on each and every item offered on our website and at our store in Connecticut. Some modest terms and conditions apply, click here for details.

Should you have any questions about how our guarantee applies to a particular product or circumstance, our customer service team will be happy to help – please contact us at (800) 411-6159 or [email protected].