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Gladiolus Topiary Design for the Professional Florist

Publication Number: P3682
View as PDF: P3682.pdf

Gladiolus are an elegant yet versatile flower. As flower fashions come and go, gladiolus–often referred to as “glads” in the floral trade–are typically reserved for church and funeral floral designs. This may be due to their showy qualities, as it is a large and colorful flower with a high perceived dollar value. An unfortunate truth is that we as florists relegate them for use in those categories and do not showcase them for other designs or occasions.

Gladiolus deserve a second look! They are available in numerous colors, both active (violet, red, orange, yellow, lime) and passive (white, pink, peach, mauve, lavender) making them an ideal floral material when selecting color palettes. Exercise your color-combining work in monochromatic, analogous, or complementary schemes and think of glads as the missing key to your designs.

One of gladiolus’ attributes is its form. This strong spike is a classical line flower. It provides structure to designs, creating the skeleton into which mass and filler flowers can be combined.

The Line-Mass continuum theory in floral design describes the melding of Eastern Ikebana (line designs) with the voluminous styles of old Europe (mass designs) with line-mass in the center. Line-mass designs geometry are typically based on pyramid forms, whether symmetrical or asymmetrical. When creating a line-mass design, an efficient order of flower placements includes establishing the design’s structure first with linear flowers, followed by rounded, mass flowers and finishing with filler materials. Linear flowers provide structure, mass flowers form the muscle, and filler flowers connect the diverse materials to create the overall form. This is one of the first techniques a professional floral designer must learn.

Adventuresome floral designers can use gladioli to create numerous types of floral designs, including flowers to wear, flowers to carry, table centerpieces, and many more. In the summer months, their wholesale price is significantly lower than during the spring and fall, especially if purchased in quantity. Glads are more abundant on the domestic market and are often grown by small, local farms. Discuss special pricing with your wholesale flower suppliers, then incorporate these spectacular flowers in unexpected ways into your designs.

One way to use gladiolus in a unique way is found in this topiary design. This arrangement would be perfect for a party or event. Instead of the usual low centerpiece, why not place one of these on a round table? Two to four of them would look stunning on an oblong table for a seated dinner or buffet service. A matching pair placed on a fireplace mantel is sure to bring attention and positive feedback to your floral business.

A regular “grower’s bunch” is typically ten stems. We used five glad stems in this featured design. An important feature to this design is to allow the florets to open, providing numerous blooms. Use refrigeration as a tool to control the stages of opening. Leave the flowers out of the cooler to open at their own rate of speed. As the stems blossom, they can be moved to refrigeration to hold them at a particular point.

We feel this design is noteworthy because it takes so little material to create an impactful design. The globe-shaped topiary is a classic and like elegant gardens, stone castles, and moonlight, it never goes out of style.

Figure 1 Topiary MaterialsA general layout of the necessary materials for the gladiolus project, which includes: five stems of gladiolus, floral foam, waterproof tape, a square container and decorative stones.
Fig.1: Topiary Materials

Five tems ‘White Prosperity’ or other gladiolus variety, fresh flower foam, waterproof tape, 2 to 3-inch wired wood picks, cube container, decorative stones. You will also need a floral knife and floral shears or sharp pruning shears.

Figure 2 Topiary BaseFive green gladioli stem are inserted into a cube of floral foam.
Fig. 2: Topiary Base

Place hydrated fresh flower foam snugly within the container. This cube container’s height left about 1-inch of space from the top of the foam.

Figure 3 Gather StemsGreen gladioli stems are inserted into a cube of floral foam, held together by floral designer.
Fig. 3: Gather Stems

Next, gather the gladioli stems together at a proportional length of about twice the height of the container.

Figure 4 Cut the StemsGladioli stems in cube container are pictured trimmed at the top.
Fig. 4: Cut the Stems

Using floral or pruning shears, cut the stems at the gathering point. Set the flowering portion of the stems aside.

Figure 5 Tape the StemsA close-up image of the trimmed Gladioli stems shows that they are taped just below the cut point of the plant
Fig. 5: Tape the Stems

Bind the plain cut stems just below the cut point with waterproof tape.

Figure 6 Trim the StemsTape-bound gladioli stems are further trimmed by floral designer.
Fig. 6: Trim the Stems

Trim the top of the bound stems so that they form a point in the center. It is fine to use floral shears or pruners for this step, but it is best to use a knife to cut flower stems that are inserted into fresh flower foam. Set the stem/container unit aside.

Figure 7 Create a Foam BallA fresh piece of floral foam is shown cut into a rounded, spherical shape. The rounded foam is wrapped with waterproof tape.
Fig. 7: Create a Foam Ball

Taking a piece of fresh flower foam, sculpt it into a spherical shape using a floral knife. This unit uses about 1/6 block of the floral foam. Note that manufacturers often score standard size foam bricks into halves and thirds, so use those lines to avoid cutting away an abundance of foam.

Figure 8 Pike the Ball
Fig. 8: Pike the Ball

Wrap waterproof tape in a continuous band around the foam ball, making a cage. This cage adds support and resiliency to the sphere. Do not add too much tape. Leave room for stem placements to enter the foam. The tape will attach to itself, not the wet foam, so be sure to overwrap it to itself.

Figure 8b Mechanics PreppedA close image shows the rounded floral foam affixed to the cut gladioli stems. The second image shows the floral foam more securely placed on the stems.
Fig. 8b: Mechanics Prepped

Once the caged ball of foam is finished, press it onto the gladiolus stem unit. Be sure to have something absorbent on hand and watch for water spills on the floor. This step should result in a relatively secure bond between the foam ball and the stems. This step makes a large hole into the foam ball. If the connection seems loose, it is often best to restart this step with a new ball of foam.

Figure 9 Rigid StemsCut white gladiolus florets are pictured on a table.
Fig. 9: Rigid Stems

The next phase of this design creation involves adding gladiolus florets to the topiary ball. As seen in this image, cut florets from the stem keeping stem segments intact. If you merely remove the florets and try to use them as placements, you will find that the base of the flower is much too weak for floral foam insertion. It is important to leave the florets attached to the parent stem. The stem is rigid and will stay in place once inserted into the foam.

Figure 10 Stem InsertionsRounded floral foam is shown with three gladiolus stems inserted at the top and on both sides of the sphere.
Fig.10: Stem Insertions

Think of this ball as a world globe. Make multiple insertions of the glad stem segments into the foam ball. Your first placement should be near the South Pole while your second placement should be near the North Pole. Add floral stem segments around the Equator in a zigzag pattern. It is a good habit to step back from your work, so that you can see the overall pattern of the design. Note that a common pitfall with this design is too few flowers at the lower third of the sphere. If this design is used as a table centerpiece, the guests will see non-decorative mechanics rather than beautiful gladiolus florets.

Figure 11 Foliage AccentsSeven gladiolus leaves are shown decoratively looped around wired wood picks.
Fig.11: Foliage Accents

Go back to the stems and foliage that were set aside, gather and form individual leaves into loops. These can be bound together using a wired wood pick. Gladiolus foliage can last a long time without water; therefore, it is not necessary for it to directly contact the foam. Distribute the foliage loops to cover the non-decorative floral foam fall and to bring crisp green color to the sphere.

Figure 12 Finished DesignA beautiful arrangement of five white gladioli stems in a cubed container with decorative stones is displayed on a table with a decorative runner underneath.
Fig.12: Finished Design

Once the design is complete, add decorative stones to the base of the design, covering the foam. It is also possible to add water to the container just above the layer of stones so that their color appears saturated. In general, it is best to avoid adding flowers or unnecessary decoration to the base of the design. It detracts from the vision of this design appearing as a trained plant. We added a line of ribbon under the container to repeat the color white at the base of the design. Consider a scattering of votive candles around the design’s base for an evening event.

Note that this design stretches fresh flower foam to nearly the breaking point, therefore you may need to practice this design a few times to perfect your techniques. Give yourself grace if you need to remake the mechanics; no one is born with the ability to create perfect mechanics at every attempt.


Butler, S., DelPrince, J., Fowler, C., Gilliam, H., Johnson, J., McKinley, W., Money-Collins, H., Moss, L., Murray, P., Pamper, K., Scace, P., Shelton, F., Verheijen, A., & Whalen, K. (2005). The AIFD guide to floral design. Intelvid.

Dole, J., Stamps, R., Carlson, A., Ahmad, I., Greer, L. & Laushman, J. (Ed.). (2017). Postharvest handling of cut flowers and greens. Association of Specialty Cut Flower Growers.

Missouri Botanical Garden. Gladiolus (group). PlantFinderDetails.aspx?taxonid=264598&isprofile=0&

Scace, P.D. and DelPrince, J. (2020). Principles of Floral Design (2nd Ed.). Goodheart-Willcox, Tinley Park, IL.

A thank you is extended to Corey Wheeler, MSU Coastal Research and Extension Center Research Technician for floriculture production assistance.

Publication 3682 (POD-08-21)

By James M. DelPrince, PhD, AIFD, PFCI, Assistant Extension Professor, Coastal Mississippi Research

Copyright 2021 by Mississippi State University. All rights reserved. This publication may be copied and distributed without alteration for nonprofit educational purposes provided that credit is given to the Mississippi State University Extension Service.

Produced by Agricultural Communications.

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Extension Service of Mississippi State University, cooperating with U.S. Department of Agriculture. Published in furtherance of Acts of Congress, May 8 and June 30, 1914. GARY B. JACKSON, Director

Department: CREC-Coastal Research & Ext Center
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