JCM Greenhouse Mfg.

01/22/2026

Don't miss out on our inventory clearance sale! Limited time only! https://conta.cc/4bLhpIe

11/11/2025

We are grateful for our veterans today and every day! Share your thanks below.

09/25/2025

Now is the perfect time to inspect your greenhouse plastic for signs of wear. Read more about how to tell if it's time for a replacement: https://wix.to/aODqZl4

As we transition into fall, it’s a great time for growers to examine their greenhouse's polyethylene covering (also known as greenhouse plastic). The greenhouse's polyethylene covering is crucial for the health of your plants.Greenhouse plastic coverings deteriorate with exposure to weather and th...

08/20/2025

Tired of guessing your greenhouse profitability? Discover valuable strategies in our latest guide on calculating ROI specifically for commercial nurseries! Read more: https://wix.to/kRzYXRq

Stop guessing about greenhouse profitability—here's how to run the numbers that matterWeather extremes cost commercial nurseries thousands of dollars annually. Between crop losses from unexpected storms, quality issues from temperature swings, and work stoppages during severe & inclement weather, ...

12/25/2024

01/08/2024

12/22/2023

Don't Miss Out! Last Day To Save 10% On Your Order

Don't Miss Out on Our Holiday Sale!

12/07/2023

Merry Christmas!🎅🎄
Enjoy 10% off all GREENHOUSES and GROWING SUPPLIES on all orders placed before DECEMBER 22, 2023!

Exclusive Holiday Sale: 10% Off on Greenhouses and Growing Supplies

12/07/2023

🌿❄️ Embrace the Winter Challenge in Your Greenhouse! 🌬️❄️

Winter greenhouse gardening can be a bit tricky, but with the right strategies, your plants can thrive even in the chilliest months! 🌱 Here are some common challenges and solutions:

1. **Limited Sunlight? Brighten it up! ☀️**
Challenge: Days are shorter, and sunlight is precious.
Solution: Maximize natural light by cleaning the greenhouse. Consider supplemental lighting using LED grow lights to ensure your plants get the light they need.

2. **Frosty Threats? Shield your Plants! ❄️🌱**
Challenge: Frost can damage tender plants.
Solution: Provide proper insulation. Use frost blankets or row covers to shield plants during cold nights. Watering the soil during the day can also release heat at night, protecting plants from frost.

3. **Chilly Temperatures? Warm it up! 🌡️🔥**
Challenge: Low temperatures can slow plant growth.
Solution: Invest in a reliable heating system. Electric heaters or radiant heaters can maintain the right temperature. Make sure to insulate the greenhouse with thermal blankets or bubble wrap to retain heat.

4. **Humidity Woes? Find the balance! 💧**
Challenge: Cold air holds less moisture, leading to low humidity.
Solution: Increase humidity by misting plants regularly. Use humidity trays or place water containers strategically. This helps prevent dehydration and keeps your plants thriving.

5. **Select Cold-Tolerant Plants! 🌿❄️**
Challenge: Some plants struggle in winter conditions.
Solution: Opt for cold-resistant varieties. Consider winter-friendly crops like kale, spinach, or certain herbs that can withstand lower temperatures and still produce a bountiful harvest.

Remember, a little extra care goes a long way in winter gardening! Share your own winter greenhouse tips below, and let's grow through the cold together! ❄️🌱

12/05/2023

Join us in extending warm birthday wishes to Josh, our valued production technician! 🎉