Karthauser & Sons Wholesale Florist

Karthauser & Sons Wholesale Florist Wholesale Roots. Fresh Blooms. Family-owned. 65+Years Strong.

🪴Wholesale florist & grower proudly serving WI, Upper MI, & Northern IL. was born.

We offer fresh cut flowers, green & blooming plants, and essential floral supplies. Our Story

In the fall of 1957 Otto, Jerry and Neal Karthauser had an opportunity to purchase the Robert Possale Greenhouse in Brown Deer, WI and subsequently, Karthauser & Sons, Inc. With early years of hard work and dedication, the business thrived, and over 50 years later Karthauser & Sons has beco

me a well-respected and vital part of southeastern Wisconsin's growing industry. In 1985, Karthauser & Sons began construction on its current location in Germantown, WI and two years later were able to set up shop in the 180,000 square foot facility. In 2004, Karthauser & Sons developed a cut flower and growing products operation which has diversified their product line and reinvigorated their business. With Otto's passing and Jerry's retirement, Neal and his son Brian, along with their General Manager Gregg Wilke, are currently running the company. Between these three men there is an impressive 100 years of experience in the commercial flower industry.

09/05/2026

Despite all the rain. Fall mums still looking good. Get yours today!!

Late Summer Beauty!
08/23/2026

Late Summer Beauty!

Good morning Mums! It's cool, quiet, and peaceful this morning. Our thoughts go out to the people in the Appleton and Me...
07/28/2026

Good morning Mums! It's cool, quiet, and peaceful this morning. Our thoughts go out to the people in the Appleton and Menasha areas who were affected by yesterday's storms.

It's cooler in the poinsettia house today. Below 90! Last week was a rough one with the extreme heat and the smoke. We'r...
07/21/2026

It's cooler in the poinsettia house today. Below 90! Last week was a rough one with the extreme heat and the smoke. We're liking this much better.

06/26/2026

Planting fall mums. These two have it down. We'll keep you posted on the progress.

Here comes the SUN! A beautiful and bright way to celebrate summer. The sunflower is indigenous to North America, and w...
06/08/2026

Here comes the SUN! A beautiful and bright way to celebrate summer. The sunflower is indigenous to North America, and were originally cultivated by Native Americans for the seeds.

The beautiful Sincerity, and the spectacular FireBurst are pictured below. Dahlias are native to Mexico and Central Amer...
05/29/2026

The beautiful Sincerity, and the spectacular FireBurst are pictured below. Dahlias are native to Mexico and Central America and are part of the daisy family. They're the better looking more sophisticated cousin!

05/29/2026

These dahlias are ready! Their next appearance will be at a garden center near you!

It looks like another busy week. Remember, Think Flowers!
05/18/2026

It looks like another busy week. Remember, Think Flowers!

05/12/2026

If you come into the store this afternoon, you may or may not find us napping! 😴😆Many thanks to our amazing customers, wholesalers, and the best team for another successful Mother’s Day. It’s always wonderful to see old and new friends at the shop. We can’t thank you enough.

xoxo Krista
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Address

W147N11100 Fond Du Lac Avenue
Germantown, WI
53022

Opening Hours

Monday 7am - 1pm
Tuesday 7am - 1pm
Wednesday 7am - 1pm
Thursday 7am - 1pm
Friday 7am - 1pm

Telephone

+12622557815

Website

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