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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm Saturday 8am - 5pm

Koster Farms - Hydroponic Produce

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Sterling, IL
Koster Farms - Hydroponic Produce

Welcome to Koster Farms Hydroponic Greenhouse! We sell locally-grown, fresh produce year round! Located in Sterling, IL.

04/22/2026

NEW FROM KOSTER FARMS! We are excited to announce that beginning this week, we will have flower pots and hanging baskets for you! These pots have a variety of pretty flowers and trailing vines- lots to choose from. We also plan to have some herb pots soon, so people can have their own little fresh herb garden. We hope you will stop by and check out our selection, starting this Saturday and continuing through the spring and summer as long as supplies last. 🌺🌻

Come visit us at:
Twin Cities Farmers Market- Sterling, IL Saturday: 8a-12p
Wheaton French Market- Wheaton, IL Saturday: 8a-2p
Geneva French Market- Geneva, IL Sunday: 9a-2p
And starting in June, Naperville Farmers Market

04/11/2026

A bit windy today- but we’re excited to be at our first Chicago Market of the season! Come see us in Wheaton today or Geneva tomorrow to get your fresh produce!
Stay tuned for updates on our website! Where you’ll be able to order ahead to ensure you get what you want for pick up at the market!

04/02/2026

We’re excited to share our new addition to the greenhouse for this year: flowers for you all this spring, summer and fall!
Our first set of pots and hanging baskets should be ready to sell around Mother’s Day! Check in with us at any of our Chicago markets or the Sterling Farmers market to see what varieties we have! 🪴🌸

10/25/2025

Good morning!
Come see us for our last week at the Naperville market before our drop off season begins.. we’re here from 7a-12p! Message for information on how to get signed up for our Naperville drop.

For our Sterling locals the market is open all year on Saturdays from 8a-12p- stop in for your fresh greens.

Bring the kids for trick-or-treating at both markets!
Happy Saturday, we’re looking forward to seeing you! 🥬☀️🎃

09/18/2025

Friday is our harvest day for our Saturday markets here at Koster Farms! Did you know we have 5 varieties of lettuce currently?
They are: Romaine, Buttercrunch, Red Buttercrunch, Oakleaf and Batavia.
Which kinds are your favorite?
We hope to see you in Naperville and Sterling this weekend! 🥗

07/30/2024

“Lettuce” tell you the exciting news! While working in the greenhouse today, we decided the lettuce had grown so well it is ready for harvest now! This coming Saturday is the big day to try this amazing lettuce, and we want you to try it at no cost to you. So your first head of lettuce is absolutely free! Just stop by the Sterling Farmers Market and pick one up to try. Michael, Ally, and Ann will be happy to meet you and answer any questions you may have about hydroponics. We hope to see you Saturday!
Starting at 8am until noon or until lettuce is gone.
🥬
PLEASE SHARE!

Address

Sterling, IL

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm
Saturday	8am - 5pm

Telephone

+18159738432

Website

http://kosterfarms.com/

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