/r/greenhouse

Photograph via snooOG

A sub dedicated to all things greenhouses.


The Greenhouse Reddit

Greenhouse - a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown.[3] These structures range in size from small sheds to industrial-sized buildings. A miniature greenhouse is known as a cold frame. The interior of a greenhouse exposed to sunlight becomes significantly warmer than the external ambient temperature, protecting its contents in cold weather. Wikipedia: greenhouse


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/r/greenhouse

14,245 Subscribers

1

My Hydroponic Greenhouse, 18th week of growth. Plus, making peach hotsauce.

0 Comments
2023/09/21
13:41 UTC

1

Underfloor heating advice

Hey there crew. I am currently making some renovations to my greenhouse and could use some advice. I would like to put some underfloor heating in the greenhouse but am unsure if it's going to be possible due to energy demand and or if the temperature change would be worth the investment. I'm operating in a geodesic dome covered in poly plastic around 12.5 meters in diameter and 4 meters tall. Thats approximately 122 sq meters of floor space. I have a solar system with batteries that power the pumps, internet, etc.... It's a 3000 W system with 4 6V 600 Amp batteries as backup. If I heated a tank of 100 Liters with one or two of these

https://www.growbarato.net/humedad-y-temperatura/2101-calentadores-de-agua-water-master.html

Do you think it would raise the temperature of the greenhouse a significant amount? During the winter here it gets to -5 degrees C or 23 degrees F. Inside my greenhouse it never gets below zero and typically hovers between 0 and 2 degrees C at the coldest point of the year at night. During the day it's always 10 degrees warmer than outdoors even in the winter.

Apart from doing a better job of keeping my plastic damage free and keeping my structure more airtight (which it is shamefully not as of yet), what advice could you give for proper effective underfloor heating?

I'm not sure if to put heating tubes under concrete pavers, or on top, or run the tubes next to the grow bags to focus on plants.

Any advice is appreciated.

8 Comments
2023/09/15
11:19 UTC

2

Help me!

As chilly times and winter is coming, all my vegetables aren't ripe yet in my greenhouse. It isn't as warm anymore as it should be for the plants.. I started wondering.. How to provide heat/keep the greenhouse warm during nights without an electronic heater?

4 Comments
2023/09/14
22:56 UTC

2

Can it be practical to grow in a mesh tunnel greenhouse during winter?

I would like to grow things year around, fruits, vegetables... in my backyard. If possible I would like to grow things like cherries, blueberries, peppers... I'm in mid Ohio between agricultural zones 6a and 6b. There's a huge difference in price between the polycarbonate structures and tunnel greenhouses that just use sheet plastic. Do the polycarbonate structures offer significantly better insulation during winter? Another primary concern other than spending money on energy for heating is pest control. Slugs and bugs are particularly fond of certain things I've been trying to grow like opium breadseed poppies and green beans. I'm wondering how they manage to keep pests out of the tunnel green houses when they're an obvious source of warmth for pests during the winter.

1 Comment
2023/09/05
00:54 UTC

11

What can be the best way to fill the gap between the baseboard of this aluminium greenhouse?

I just finished assembling this aluminium greenhouse. It’s summer now, so it’s ok to have the gap for airflow. But winter is coming, so I need to find a way to fill the 7-10cm gap between the greenhouse wall and the ground for insulatuon. I thought of stuffing foams or spraying liquid expandable foam in there. Any better ideas?

28 Comments
2023/09/03
02:37 UTC

3

Advice for zone (~4) want to create a structure that simulates a warmer zone for overwintering container roses

0 Comments
2023/09/01
16:09 UTC

2

Knee Wall for a Lean To Greenhouse

I'm looking to build a small lean-to greenhouse that is attached to a shed in order to care for plants during the winter and maybe grow some salad greens etc. The dimensions would be 4w x 12l x 8h. With the relatively skinny dimension, I would like to create a knee wall but I am unsure about how to go about this in terms of the foundation required. My current plan is to just use a gravel floor with pavers on top to walk on. But the knee wall will require some sort of foundation. Des anyone have any experience or suggestions?

0 Comments
2023/08/28
19:47 UTC

1

Greenhouse tent - heating

Hi all,

I have a 5x5 greenhouse tent with irrigation. What is recommended for keeping it warm during winter, that is waterproof? I live in NC, USA. All advice is welcome and much appreciated. Thank you!

3 Comments
2023/08/26
20:39 UTC

2

greenhouse flooring

I need recommendations for greenhouse flooring. My hobby greenhouse is about 12" x 10'. It was converted from and old shed to a greenhouse. The contractor simply covered the plywood flooring with 12" square tile. Over the past few years with foot traffic and watering from watering plants the floor has problems - the grout cracked and some of the tiles too. Now the flooring (the plywood under the tile) has failed and is rotten and spongy. So, I need to remove the tile and tear out the rotten plywood flooring. And then replace the flooring with - something. The floor joists are about 2 feet from ground level. I am looking for recommendations with those of you in this group who have built or repaired hobby greenhouses. I'm wondering what material you would recommend as the flooring - tile, laminate, vinyl, linoleum or ?.

7 Comments
2023/08/23
17:03 UTC

18

Trying something different for the coming cool season.

Snacking/ornamental peppers, Okra, and basil on the shelves plus I planted kohlrabi, winter choy, and "Chinese chives" in the lower beds just to see what happens.

7 Comments
2023/08/21
03:37 UTC

5

ROI on greenhouse

I’m thinking on getting a greenhouse as I want to

• eat more fresh • save more money • grow things by my own hands

However, the initial investment is 5k and it’s a big investment for me.

I was wondering if it’s worth it so I came here looking for your insights!

26 Comments
2023/08/17
16:16 UTC

0

I was asked for a video so here it is.

This is a place where I find peace.

0 Comments
2023/08/17
03:04 UTC

3

My Hydroponic Greenhouse, 13th week of growth. Lotsa hot peppers, and some hidden cucumbers.

0 Comments
2023/08/15
18:42 UTC

11

I kneed a bigger greenhouse

2 Comments
2023/08/07
18:42 UTC

8

Where to start? Beginning to plan a year-round greenhouse in southern Arizona

Any advice is appreciated! A bit overwhelmed with all the info out there! Vegetable and fruits. Books, YouTube channels, anything I am grateful for! Will be in Zone 8, also considering a hoop house

2 Comments
2023/08/06
05:23 UTC

1

Next year season

0 Comments
2023/08/05
12:34 UTC

6

I built this greenhouse how can I make it better.

5 Comments
2023/07/31
17:53 UTC

9

Pollen production help with squash plants.

It seems like my squash plants are not producing any pollen. The male flowers grow but they have no yellow pollen inside. I have been taking flowers from my neighbors to get pollen. How can I increase pollen production?

0 Comments
2023/07/30
16:55 UTC

3

Heat issues

Hello,

I have a 6x4ft Palram greenhouse in my backyard. I'm super happy with it, my dad even helped install a solar panel on the roof of it to power a humidifier on the inside.

That being said, I obviously put it in a spot with a decent amount of light. It has a roof window that I crack open as well as the front door, but that obviously "wastes" the humidity.

I have a shade cloth for it, but I worry that it is impeding my plant's need for light.

Has anyone ever tried installing those window films on a greenhouse to let light in but prevent heat? I'm aware that it would also stop some light from getting in, but perhaps there's a brand that lets in more than my shade cloth.

My plants are okay with high temperatures, but I do worry that it will get too hot if I leave the door closed and I want to avoid wilting.

Thanks!

5 Comments
2023/07/27
18:14 UTC

2

Ladder to reach top

I am looking for a ladder made to reach the top of a greenhouse. I'd like something that can just sit on the steel supports between the glass window panes and can slide along the length of the greenhouse. This ladder with be primarily for maintenance of the glass/top of greenhouse.

1 Comment
2023/07/21
13:49 UTC

3

🪷My Greenhouse Visit | Large plants and Ganging Baskets🪷

0 Comments
2023/07/20
03:54 UTC

4

How I grow Hydroponic Peppers, 3 ways

0 Comments
2023/07/19
13:18 UTC

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