Getting ready to heat your greenhouse? Well, now is the time to either check your existing heater or to purchase a new one. Our top pick, the Southern Burner natural gas or propane greenhouse heater is going to have a price increase (the first time since 2008) on November 20th. So you want to be sure to order prior to that date. This is a super greenhouse heater that will fit under a bench and not take up any valuable floor space. It requires no electricity. The heater is all aluminum and stainless steel. They will keep the temperature at the top of the greenhouse within about 5 to 7 degrees of the floor heat. There is a vented and a non vented model available. The vented model is 25,000 BTu’s and will be adequate to heat most small hobby greenhouses. If you have a larger greenhouse you would simply add a heater or two. There is a formula to calculate how many BTu’s will be required to heat your greenhouse based on the size of your hothouse, the glazing type, the indoor and outdoor temperatures. Please be sure to follow this formula, or your heater may be too small to get your greenhouse to the desired indoor temperature. Plan ahead. Winter is headed our way. Don’t be left out in the cold this year!
If you are in the process of designing or purchasing a greenhouse you probably have questions about what accessories you should purchase with the greenhouse. I get asked this a lot. Some people want to completely ignore the accessories, while others have read every article and believe they should buy everything that you can put in a greenhouse. My recommendation is to start with the ventilation package. Yes, you will need it even if you are only overwintering plants and even if you are in a cold location. I have seen sunny winter days when it was 60 degrees outside and my fan and shutters were operating. And, I keep my ventilation system set at 90 degrees. On the other hand, I hate to see people load up on a lot of items that they will never use. A heater is a good idea, if it is close to the time of year you will need it, or if any modifications to the structure are needed to accommodate for vents, etc. I think the rest of the items should be added as needed.
Here is a nice article from our friends at Garden and Greenhouse which talks about some small hand tools and re purposed items. These are things probably most of us would never think about, but will be used over and over again.
If you already have or are thinking about getting a greenhouse you should consider purchasing several inexpensive tools and related products. Although the items are not very expensive they can make a difference in how much you enjoy greenhouse gardening and how efficient you are at doing it.
This is an excellent article from our friends at Garden and Greenhouse magazine regarding the need for consistency in your greenhouse environment. In order to have the best, consistent growth it is important to have the best, consistent climate. Although I must say that I find this a little bit more on the advanced end of greenhouse growing. I do not suggest that someone jump in with every known greenhouse accessory when initially purchasing their greenhouse. I recommend getting a ventilation system, as it is an integral part of the building. You can retrofit them, but it is easier to install them when you are putting up your structure. A heater is also a good accessory to order with your greenhouse. As far as some of the other systems are involved, I suggest experimenting and finding out what you need rather than outlaying a bunch of money for accessories that your climate or plants may not need. Unless you are an experienced orchid grower, for example, you will know what humidity, etc your plants will need. Then it would be a wise decision to get your greenhouse set up with these systems at the beginning.
Consistency is the key to unlocking the maximum potential of an indoor garden or greenhouse. Plants thrive on consistency. Plants respond best to light energy, atmospheric conditions, and nutrients when they are kept as consistent as possible. Like people, plants burn sugars to provide energy for growth. In contrast to people, plants have the unique ability to create those sugars from sunlight. The creation and consumption of these sugars are actually part of a chemical equation. In other words, there are countless chemical reactions occurring at all times within and around the plant that contribute to healthy development.
When atmospheric conditions, lighting and nutrient levels are at optimal levels, the plant has everything it needs to make those chemical reactions happen without interruption. When the chemical reactions can occur without interruption, the plant’s growth rate is maximized. Maximizing the potential of a particular crop is the goal of just about every indoor horticulturist or greenhouse hobbyist. In order to maximize the potential of an indoor garden or hobby greenhouse, a horticulturist should closely monitor the consistency of the garden’s temperature, humidity, lighting and nutrient solution. Each of these factors has a significant effect on the chemical reactions that contribute to plant growth.
There are many benefits to polyfilm greenhouses. One thing is that some municipalities will consider this a temporary structure and will not require permits, wind and snow load ratings, etc. They are also less expensive than a rigid polycarbonate covered greenhouse. One disadvantage to this is that most of the greenhouse polyfilm found today has a 4 year UV protection, so you will have to figure on replacing the covering every so often. Double polyfilm greenhouses consist of 2 layers of polyfilm with an air inflation system for greenhouse film blowing air between the 2 layers. This will give you a much better R rating than just a single layer of film. Manufacturers claim that it can save you up to 40% of your energy costs. That is quite a considerable savings. I find that the inflated film is more rigid and less susceptible to damage than a single layer of film. This all happens without lowering the light transmission properties of the polyfilm. This is an excellent choice that has been used by many commercial growers through the years and is totally acceptable for a backyard greenhouse operation. Be sure to use greenhouse polyfilm that is UV protected and has an anti condensate coating on it. If the film is not UV protected you should not expect to get any more than one years use out of it, sometimes even less. The anti condensate coating keeps droplets from forming on the film. This will contribute to the overall health of your plants. Any condensation that does form on the roof will come off in sheets rather than in droplets. If you have water dripping on your plants you will have damage to your leaves, fruits, flowers and overall less healthy plants. So, when considering your first or next greenhouse, take a look at a double polyfilm greenhouse and see what benefits it will give you.
This one is for all of you d-i-yers out there. This article is from our friends at Garden and Greenhouse Magazine. It discusses the different types of hydroponic systems and how to set up your own hydroponics in your hobby greenhouse. I have owned a greenhouse full of hydroponic systems, experimenting with the different types to see which I liked the best. I think I preferred the NFT system. We used it to grow basil. It was as simple as could be.
Experimenting with hydroponic gardening is a fun and productive way for greenhouse hobbyists to expand their horticultural knowledge. The term “hydroponics” is a general name that encompasses all methods of soilless gardening. In other words, there is a multitude of ways to garden hydroponically. However, don’t let the seemingly infinite amount of hydroponic systems deter you from giving hydroponics a try. One of the best ways for greenhouse hobbyists to break into hydroponic gardening is by making a homemade hydroponic system.
You have dreamed for years about owning a greenhouse. Now the time has come. What size do you get? Most people have problems making this decision. I think the best way to start is to think about how you are going to use the greenhouse. If you have plants that you are going to overwinter, I suggest laying them out in your yard in a configuration similar to what you will do in your greenhouse. Then you just measure outside the plants and voila, you have the answer to this question. If you are growing in raised beds, decide what size beds you will have and draw them out on a piece of paper allowing for adequate walkways. The same would apply if you are using systems such as hydroponic systems. Find out their size and draw them in a configuration you like on a piece of paper. When considering raised beds and/or greenhouse staging, you need to be sure that they are not so wide that you are unable to maintain the outside plants properly. I suggest not using any wider than a 3′ bench for benching that will be against a wall. If you are using a bench in the center aisle, it is OK to use a 4′ wide bench. Keep in mind that most of us will be comfortable with a 3′ wide walkway, so be sure to draw them in as well. I do not recommend even trying to put a center bench in a 12′ greenhouse. Lots of people try and I don’t think they are too happy with the outcome. If I would do this, I would only use 2′ wide benches to ensure adequate walkways. I would get at least a 16′ width for a center bench. The best thing to remember is that we are all collectors. You know, that perfect color plant, an unusual vegetable, etc. Don’t buy a greenhouse you will be crammed into with your current plants. Always allow a little room for expansion. If you need any help with this decision, feel free to contact us at Advance Greenhouses.
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