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Greenhouses

About greenhouses

Greenhouses and coldframes are great options to raise the ambient temperature and allow you to grow in frosty weather, get a jump-start on your seed starting, or shelter delicate plants from the elements. Choose from our selection of coldframes, greenhouse plastic, or beautiful redwood greenhouse kits.

Regulate temperatures in your greenhouse or coldframe with automatic vent openers. If you are building your own greenhouse and need plans, or just want to know more, check out the DIY books that are our staff favorites.

FREE SHIPPING on Greenhouse Kits and any accessories that are ordered at the same time as a greenhouse to the Continental US!

Solar Bells (Set of 3)
Solar Bells (Set of 3)

SEF200

$24.99 As low as: $22.49
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sef115-cat.jpg
Automatic Vent Opener - Gigavent

SEF115

$129.00 As low as: $116.10
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Automatic Vent Opener - Standard Replacement Cylinder
Automatic Vent Opener - Standard Replacement Cylinder

SEF111

$19.99 As low as: $17.99
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Automatic Vent Opener - Standard
Automatic Vent Opener - Standard

SEF110

(4)

$39.99 As low as: $35.99
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PVC Snap Fitting - 4 Way (1/2")
PVC Snap Fitting - 4 Way (1/2")

SER173

$1.99 As low as: $1.49
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Aluminum Snap On Hinge (1")
Aluminum Snap On Hinge (1")

SER259

$6.99 As low as: $5.24
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Dramm Water Breaker, Redhead - 1000PL
Dramm Water Breaker, Redhead - 1000PL

WOT311

1 Review

$13.99
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PVC Snap Fitting - 4 Way (1")
PVC Snap Fitting - 4 Way (1")

SER175

$3.09 As low as: $2.32
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PVC Snap Fitting - 4 Way (3/4")
PVC Snap Fitting - 4 Way (3/4")

SER174

$2.79 As low as: $2.09
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PVC Snap Fitting - 3 Way (1")
PVC Snap Fitting - 3 Way (1")

SER172

$3.19 As low as: $2.39
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PVC Snap Fitting - 3 Way (3/4")
PVC Snap Fitting - 3 Way (3/4")

SER171

(1)

$2.99 As low as: $2.24
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PVC Snap Fitting - 3 Way (1/2")
PVC Snap Fitting - 3 Way (1/2")

SER170

$2.09 As low as: $1.57
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PVC Fitting 5 Way 1/2
PVC Fitting 5 Way 1/2

SER268

$2.99 As low as: $2.24
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Snap Cross (1/2")
Snap Cross (1/2")

SER290

$1.59 As low as: $1.19
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Snap Cross (3/4")
Snap Cross (3/4")

SER291

$1.99 As low as: $1.49
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Coldframe Juwel All Season
Coldframe Juwel All Season

SEF106

$179.00
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Super Strong Woven Poly (24' Wide, Sold By The Ft)
Super Strong Woven Poly (24' Wide, Sold By The Ft)

SEG306

$11.98 As low as: $9.58
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Super Strong Woven Poly (36' Wide, Sold By The Ft)
Super Strong Woven Poly (36' Wide, Sold By The Ft)

SEG318

$17.98 As low as: $14.38
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Snap Cross (1 1/2")
Snap Cross (1 1/2")

SER294

$3.39 As low as: $2.54
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Snap Cross (1 1/4")
Snap Cross (1 1/4")

SER293

$2.99 As low as: $2.24
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Snap Cross (1")
Snap Cross (1")

SER292

$2.19 As low as: $1.64
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PVC Fitting 5 Way 3/4
PVC Fitting 5 Way 3/4

SER269

$3.69 As low as: $2.77
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Greenhouse Poly - Tufflite IV Clear (28' x 100' Roll)
Greenhouse Poly - Tufflite IV Clear (28' x 100' Roll)

SEG128

$298.00 As low as: $268.20
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Greenhouse Poly - Tufflite IV Clear (42' x 100' Roll)
Greenhouse Poly - Tufflite IV Clear (42' x 100' Roll)

SEG142D

$398.00 As low as: $358.20
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Greenhouse Poly - Tufflite IR Infrared (20' x 100' Roll)
Greenhouse Poly - Tufflite IR Infrared (20' x 100' Roll)

SEG120B

$279.00 As low as: $251.10
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Greenhouse Poly - Tufflite IV Clear (40' x 100' Roll)
Greenhouse Poly - Tufflite IV Clear (40' x 100' Roll)

SEG140D

$378.00 As low as: $340.20
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Juwel Coldframe - 100/90 Easy Fix
Juwel Coldframe - 100/90 Easy Fix

SEF102

3 Reviews

$159.00
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Super Strong Woven Poly (12' Wide, Sold by the Ft)
Super Strong Woven Poly (12' Wide, Sold by the Ft)

SEG302

$5.98 As low as: $4.78
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Greenhouse Poly - Tufflite IV Clear (20' x 100' Roll)
Greenhouse Poly - Tufflite IV Clear (20' x 100' Roll)

SEG100B

$249.00 As low as: $224.10
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Greenhouse Poly - Tufflite IV Clear (10' x 100' Roll)
Greenhouse Poly - Tufflite IV Clear (10' x 100' Roll)

SEG110

$129.00 As low as: $116.10
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Cinch Strap (100' Roll)
Cinch Strap (100' Roll)

SEG340

$29.99
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Super Strong Woven Poly (10' Wide, Sold by the Ft)
Super Strong Woven Poly (10' Wide, Sold by the Ft)

SEG300

$4.98 As low as: $3.98
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Greenhouse Poly - Tufflite IV Clear (16' x 100' Roll)
Greenhouse Poly - Tufflite IV Clear (16' x 100' Roll)

SEG116

$199.00 As low as: $179.10
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Greenhouse Poly - Tufflite IV Clear
Greenhouse Poly - Tufflite IV Clear (20' wide, sold by the foot)

SEG100

1 Review

$3.79 As low as: $3.03
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Triple Wall Polycarbonate Panel (4' X 8')
Triple Wall Polycarbonate Panel (4' X 8')

SEG408

$99.99 As low as: $79.99
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Greenhouse Poly - Tufflite IV Clear (24' x 100' Roll)
Greenhouse Poly - Tufflite IV Clear (24' x 100' Roll)

SEG124

$289.00 As low as: $260.10
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Free Seed Packs

With Online Orders

  • 2 free seed packs on orders of $50
  • 5 free seed packs on orders of $100

Browse Peaceful Valley Organic Vegetable Seed Packs

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  • For a healthy and safe food supply
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