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Caesar's Brother Siberian Iris flower closeup

Caesar's Brother Siberian Iris

Iris sibirica 'Caesar's Brother'

$74.00
Sale price  $74.00 Regular price 

Shipping Calculated at Checkout

SizeSM. PERENNIAL|#1 container|Ships in|Spring 2026

Not available in your area

FEATURES:

  • Hand Selected, Fresh from the Grower
  • Ships in a plant-safe designed box

Growth Facts

Hardiness Zone 3-9
Mature Height 3-4' tall
Mature Width 2.5-3' wide
Exposure Full Sun/Part Shade
Spacing 2.5-3' apart

Why Plant Caesar's Brother Siberian Iris?

During those wonderfully pleasant and mild days between spring and summer, Caesar’s Brother Siberian Iris takes the stage. It opens its exquisite flowers. The deep violet-blue blossoms carry themselves with grace and style, hovering above sword-like foliage that looks handsome all season. No finer picture could be created than a planting of Caesar’s Brother with classic partners that also bloom at this special time: Roses, Peonies, Hardy Geraniums, Clematis, and Catmint. A pond provides additional opportunities for beautiful vignettes—Caesar’s Brother luxuriates in the boggy soil at the water’s edge. Wherever it goes, this beloved Spirit brings an easy elegance with it!

New varieties come and go, but this selection from the 1920s remains one of the most popular Irises on the planet. Caesar’s Brother was bred by F. Cleveland Morgan of Montreal. Morgan wasn’t a plant breeder by trade, but a passionate amateur gardener whose family owned a chain of Canadian department stores. To produce the new plant, he crossed an Oriental Iris with a closely related Siberian Iris. Although the resulting plant is a hybrid, it is usually just referred to as a Siberian Iris. He did name one of the offspring ‘Caesar’, in case you were wondering, but nobody grows that one anymore!

How to use Caesar's Brother Siberian Iris in the landscape?

Cut flowers make a house a home. Plant some extra Caesar’s Brother Siberian Iris, so you’ll have plenty for cut arrangements. The long, straight stems and intricate, showy blooms make this Spirit tops for cutting. Harvest them right after they open.

Planting Zones

Hardiness Zone: 3-9

How To Plant Caesar's Brother Siberian Iris

Give Caesar’s Brother Siberian Iris a spot where it can soak up the sun all day. Regular water is a must for lush, healthy foliage and abundant flowers. As you may guess by the name, this Spirit is at home in cold regions and is less well suited to hot and sticky parts of the country, although Caesar’s Brother is a better performer in the southern U.S. than most Siberian Irises. Leave seedpods standing for winter interest. Cut plants down in late winter to make way for new shoots to emerge in the spring.

How To Water

Water as soon as they arrive! Irises need to be watered regularly to maintain evenly moist soil for proper establishment in the landscape.

How Does Shipping Work?

Bower & Branch Trees, the real BIG trees, don’t fit in a box! Our big trees, sizes XL and bigger, require expert delivery and care, that means our extra-large trees are shipped on Bower & Branch trucks. We are the only ones who know how to ship our big and bigger trees and plants with tender loving care. We deliver your trees and plants directly to you. Ask Bower & Branch about planting services – we'd be happy to assist in installation.

*For Big trees and Shrubs, Size XL and bigger: Review our Seasonal Shipping Timelines and Policy here.

Your trees and plants are grown across the United States at various Bower & Branch Growers. Depending on your location, your plant orders may be shipped from various locations. Please expect orders with multiple items to be delivered over a number of days as a result. Orders made up of numerous items or selections will not arrive at your home on the same day.

Shipping Delays:

From time to time, Bower & Branch Growers may determine to delay order shipment based on various factors for plant health. Weather in your region, as well as, where your plants are grown, is always considered when shipping. Extreme weather conditions may delay some or all of your order. Bower & Branch allows our Growers to make final shipping decisions based solely to benefit your trees and plants’ health and success.

How Does Sizing Work?

The size of our trees have nothing to do with the container size like you may find elsewhere–big doesn't mean just height - it’s also vigor, age, and overall health. Other online retailers are going to tell you that a plant is a seven gallon, that means nothing to your tree or plant (or you.)

Our trees for sale online are graded on large, x-large, and even bigger sizes. This is because our trees are sized by their age—the higher the letter, the more mature the tree. The age determines the trees’ overall height, size of the trunk and the overall branch density.

All of these characteristics are what you should be looking for when choosing a tree for immediate impact and instant curb appeal. Our extra-large tree and plant sizes are sure to wow you and your neighbors!

See the size guides below.

How Trees are Shipped
Size 4XL D Trees Size 3XL C Trees Size 2XL B Trees Size XL A Trees Size LARGE AA Trees

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