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🌿❄️ WINTER GREENHOUSE CHECKLIST FOR GROWING ZONES 2–5

18 items

Cass white

If you live in Zones 2–5, your winter greenhouse isn’t just a hobby — it’s a tiny climate-controlled miracle you're performing in the dead of winter. Consider this your curated checklist to keep your plants warm, nourished, hydrated, and thriving whe...

Sections

Heating and Insulation Essentials

Winter Lighting Set up

Humidity and Airflow Control

Watering and Irrigation

Winter Soil, Nutrition & Plant Wellness

Structural Support and Set up

Heating and Insulation Essentials

Price: ~$190–$240 This family-owned German brand built the Palma heater with real winters in mind — the kind that freeze your eyelashes and make your plants question their life choices. It delivers consistent, even warmth without drying out the air, ...

Palma – BioGreen Products

Price: ~$120–$150 These insulation panels act like a warm parka for your greenhouse, locking in heat and softening harsh temperature swings common in Zones 2–5. Twin-wall structure traps air between layers, giving you better insulation without adding...

Polycarbonate Panels for Greenhouse Construction | Sungrow Greenhouse Products

Price: ~$12–$25 Inexpensive, unglamorous, and absolutely essential, this weather-seal tape prevents heat from slipping away through tiny cracks and seams. Greenhouses — especially older ones — leak warm air like it’s their job, and this sealant helps...

Weatherseal Tape – Frost King Products

Winter Lighting Set up

Because winter sunlight is basically a part-time employee in Zones 2–5.

Price: ~$150–$250 This is the grow light for people who want function and beauty — the kind you actually feel proud to hang in your greenhouse. Soltech is a woman-owned company known for marrying design and horticulture science, and their pendant gro...

Refurbished Aspect™ LED Growlight - Lightly Loved - Soltech

Price: ~$139–$159 Spider Farmer is a small grow-tech brand with a cult following among greenhouse growers for their reliable, bright, and energy-efficient LED panels. The SF-1000 is powerful enough to support winter greens, herbs, seedlings, and even...

Spider Farmer Smart Complete Grow Tent Kit – 1-2 Plant Setup, SF1000 EVO LED Lighting, 60x60x180Pro Grow Tent, 4” Inline Duct Fan & Carbon Filter, Clip Fan, WiFi & Bluetooth-Integrated Controller, Temperature, Humidity & Day/Night Sensors, Historical Data & VPD Monitoring

Price: ~$29–$45 These slim and flexible full-spectrum bars are perfect for supplemental lighting, especially in smaller or oddly shaped greenhouses. They’re easy to mount along shelves, rafters, or wall frames — meaning you can give underlit corners ...

Full Spectrum Grow Lights – High-Performance LED Lighting for Indoor Plants

Humidity and Airflow Control

Dry air and stagnant air are winter’s twin villains. Your greenhouse must defeat both.

Price: ~$150–$200 Designed by a women-led wellness company, this humidifier is beloved for its mold-resistant construction and gentle moisture output — two details that matter a lot in winter greenhouses. While it’s marketed for home use, greenhouse ...

Humidifier for Large Room

Price: ~$100–$150 AC Infinity is a small, independent climate-tech brand trusted by greenhouse growers for producing tools that are quiet, precise, and long-lasting. The Cloudforge humidifier can run for hours with stable moisture output, helping off...

Humidifiers for Grow Tents, Rooms & Indoor Spaces | AC Infinity

Price: ~$29–$49 Silent, powerful, and thoughtfully engineered, this clip fan prevents winter stagnation while strengthening plant stems. Airflow is a crucial part of winter greenhouse health — it prevents mold, mildew, and cold pockets that can stres...

Clip-On Fans for Hydroponics & Growers | AC Infinity Inc

Watering and Irrigation

Because cold roots are grumpy roots — and grumpy roots don’t grow.

Price: ~$200–$260 SmartDrip is a small tech company building irrigation systems specifically for growers who need consistent moisture without the risk of shocking cold water. In winter, fluctuating temperatures make hand-watering risky, and this syst...

Auto Irrigation Kit – Smart Drip System for Effortless Garden Watering

Price: ~$80–$150 Bootstrap Farmer is a woman-owned brand beloved by microgreen growers, homesteaders, and greenhouse gardeners for their ultra-durable, USA-made trays. These trays don’t crack, warp, or bow — which is exactly what you want during cold...

Grow Trays Collection | Bootstrap Farmer

Price: ~$36–$48 This gentle, beautifully crafted mister provides a soft rain-like spray that keeps humidity-loving plants happy without oversaturating winter soil. Mossify is an AAPI-owned plant care brand known for thoughtful, high-quality tools tha...

Mossify Mister – Eco-Friendly Moss Care Solution | Mossify.ca

Winter Soil, Nutrition & Plant Wellness

Plants don’t stop needing nutrients just because the sun goes on vacation.

Price: ~$199–$249 SoilKit is a woman-owned soil analysis lab that gives you real, science-backed insight into what your winter plants actually need. Winter soil behaves differently — nutrients move slower, microbes hibernate, and your usual summer fe...

SoilKit: Smart Soil Monitoring System for Precise Plant Care

Price: ~$119 This family-owned fertilizer brand uses seaweed and fish-based nutrients that are gentle enough for winter but strong enough to support cool-weather growth. It's ideal for kale, spinach, herbs, and overwintered seedlings that need steady...

Neptunes Harvest

Price: ~$22–$38 Oh Happy Plants is a woman-owned, zero-waste brand creating soil blends that support warm roots and prevent winter compaction. Their winter-friendly mix includes ingredients that maintain structure even in fluctuating temperatures, so...

Oh Happy Plants!

Structural Support and Set up

Price: ~$250–$350 Handcrafted from cedar by a small-batch furniture maker, this bench holds up beautifully through humidity, temperature swings, and cold snaps. Cedar is naturally mold-resistant, making it ideal for winter greenhouse environments. Th...

Cedar Potting Bench | Harbor House Studio

Price: ~$110–$180 This independent gardening brand makes cold frames specifically to extend your growing season and protect temperature-sensitive plants. It acts like a micro-greenhouse within your greenhouse, buffering against sudden temperature dro...

Cold Frame Garden Greenhouse by Tierra Garden

Price: ~$20–$40 This family-owned agricultural brand produces frost cloth that’s reliable, breathable, and easy to layer. When winter storms roll in, you’ll be grateful to have this on hand for those “one more degree and everything will die” nights. ...

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