Polycarbonate Vs. Plastic Greenhouse: The Best Greenhouse Material for Your Backyard Gardening
Every gardener wishes for space where they can grow fruits, vegetables, herbs, and flowers freely – without being limited by the seasons. This is, of course, possible with a greenhouse; however, a critical decision-making factor is choosing the right greenhouse material. In this article, we will be talking about the two most popular material choices – polycarbonate greenhouse and plastic greenhouse.
This video is sourced from Youtube@Epic Gardening
When comparing a polycarbonate greenhouse vs. a plastic greenhouse, the difference between the two isn’t just technical. In fact, the greenhouse material comparison will shape how your plants live, grow, and flourish. From insulation to durability, the best greenhouse material determines whether your backyard greenhouse becomes a thriving sanctuary or a seasonal struggle.
So, let’s explore which greenhouse material is better for backyard gardeners.
Table of Contents
• Overview of Both Greenhouse Types
• Polycarbonate Vs. Plastic: Greenhouse Material Comparison
• Best Use Scenarios for Backyard Gardeners
• Polycarbonate and Plastic Greenhouse: Pros and Cons Summary
• Which Greenhouse Material Should You Choose?
• How to Choose the Right Greenhouse Material?
Overview of Both Greenhouse Types
Here’s a quick overview of polycarbonate greenhouses and plastic greenhouses.
What is a Polycarbonate Greenhouse?
A polycarbonate greenhouse basically uses rigid, twin-wall or multi-wall panels which are made from durable thermoplastic. These panels trap heat quite efficiently while diffusing sunlight, thus, creating a very stable and protective growing environment for your plants. It’s like a fortress for your plants that is strong, insulated, and built for long-term growth.
What is a Plastic Greenhouse?
A plastic greenhouse, on the other hand, typically uses polyethylene film (or plastic sheets) that is stretched over a metal or PVC frame. These are more like a lightweight shelter that is much more affordable, flexible, and quite easy to set up.
Polycarbonate Vs. Plastic: Greenhouse Material Comparison
Let’s take a detailed look at the difference between polycarbonate and plastic greenhouse.
Insulation and Temperature Control
When it comes to greenhouse insulation comparison, this is where the biggest difference becomes quite clear.
Polycarbonate Greenhouse Insulation
- The multi-wall structure traps air, which leads to better heat retention.
- It helps maintain a stable internal temperature.
- It reduces the need for additional heating when it’s cold.
If you are looking for a greenhouse for a cold climate or a greenhouse for winter use, then the polycarbonate greenhouse is a better choice for you.
Plastic Greenhouse Heat Retention
- Since it has a thin film, it loses heat quickly.
- There are a lot more internal temperature fluctuations.
- Works well for seasonal gardening, but has a heat retention limitation when compared to polycarbonate.
If you are looking for a greenhouse for mild or warm climates, then a plastic greenhouse is much more suitable.
For instance, if you are looking to grow leafy greens through winter, then a polycarbonate greenhouse gives you that consistent environment you need for plant growth. A plastic greenhouse, on the other hand, might actually require extra heating support.
Durability and Weather Resistance
How do you know which is a durable greenhouse material? Let’s see which key factors help you make the right decision.
Polycarbonate Greenhouse Durability
- It’s impact-resistant – can handle harsh weather conditions such as high winds, heavy snow, hail, and debris).
- Comes with a UV-resistant coating that prevents yellowing.
- Can last for 10–20 years.
Plastic Greenhouse Lifespan
- Can tear easily and is prone to UV damage.
- Over time, it can degrade in strong sunlight.
- Typically lasts for 1–3 years.
If you’re looking for a heavy duty greenhouse, polycarbonate clearly is your choice, but if you are looking for something that is lightweight, then a plastic greenhouse does the job.
Light Transmission
Light is essential for plant growth, but the type of light the plants get matters too.
Polycarbonate Panels
- Sunlight is evenly spread across the greenhouse.
- Stops plants from burning.
- Ensures healthy, balanced growth for your plants.
Plastic Sheets
- Lets in direct sunlight.
- The sunlight is quite strong, but there’s an uneven distribution.
- If the climate is hot, there’s a risk of overheating.
When it comes to light transmission, polycarbonate gives that soft, nurturing glow, while plastic gives of more of a direct, intense sunlight.
Cost and Lifespan
Let’s take a look at the cost and lifespan of both a polycarbonate greenhouse and a plastic greenhouse.
|
Feature |
Polycarbonate Greenhouse |
Plastic Greenhouse |
|
Initial Cost |
Has a higher upfront cost |
Has a lower upfront cost, but there is going to recurring cost over the years
|
|
Lifespan |
Usually last for 10–20 years |
Typically, last for about 1–3 years
|
|
Maintenance |
Quite a low maintenance material |
Needs frequent replacement
|
|
Long-Term Value |
High |
Moderate |
Though the polycarbonate greenhouse cost is higher upfront, it’s a better long-term investment. Plastic greenhouse prices are much more on the budget-friendly side, but you might have to incur recurring cost over time.
When doing a greenhouse investment comparison, often a polycarbonate is the one that dominates the space.
Best Use Scenarios for Backyard Gardeners
When choosing between a polycarbonate vs plastic greenhouse, it all comes down to your lifestyle, climate, and gardening goals.
Choose a Polycarbonate Greenhouse if:
- You live in a cold or unpredictable climate
- You want a long-lasting greenhouse material
- You plan year-round gardening
- You prefer a walk in greenhouse for larger setups
- You need a weather-resistant greenhouse
Choose a Plastic Greenhouse if:
- You are a beginner who is testing out greenhouse gardening
- You have a limited budget
- You need a small outdoor greenhouse
- You garden seasonally (spring–summer)
Polycarbonate and Plastic Greenhouse: Pros and Cons Summary
Let’s take a look at the pros and cons list below.
Polycarbonate Greenhouse
|
Pros |
Cons |
|
Has excellent insulation |
Has a higher initial cost
|
|
Is highly durable and weather-resistant
|
Comes with a more complex setup |
|
Has a longer lifespan
|
|
|
Offers better plant protection
|
|
Plastic Greenhouse
|
Pros
|
Cons
|
|
Plastic greenhouses are quite affordable and accessible
|
Has a short lifespan
|
|
Much easier to install
|
It’s weak against harsh weather conditions
|
|
It is lightweight and portable
|
Has poor insulation
|
Which Greenhouse Material Should You Choose?
When it comes down to choosing the right greenhouse material, it isn’t just about the price; it is about how you would like your plant to grow, and which stage of gardening you are in – just beginning or an experienced gardener.
For Beginners and Seasonal Gardeners
If you are starting out and looking for the best greenhouse for beginners, or you are a seasonal gardener who is experimenting with home gardening, then the most practical option for you is a plastic greenhouse. They are ideal for short growing seasons, they are budget-friendly, and easy-to-set up.
Best for:
- Small spaces
- Mild climatic conditions
- Gardeners who are budget-conscious
For Long-Term and Year-Round Growing
If you are a more serious gardener or you are planning a long-term gardening journey, then a polycarbonate greenhouse is ideal for you, as it offers better durability and performance. It creates an environment that is more stable for your plants.
Best for:
- All-season gardening
- Colder or unpredictable climatic conditions
- A walk-in greenhouse setup
- Gardeners who are looking for a long-lasting greenhouse material
How to Choose the Right Greenhouse Material?
Here’s how you can choose the right greenhouse material.
Consider Your Climate: Check what kind of climatic conditions you live in. Is it cold, or does the weather keep changing? If so, then a polycarbonate greenhouse is what you need. But if the climate is warm and stable, then a plastic greenhouse would do the job.
Define Your Gardening Goals: Define your goals before choosing a greenhouse material. Are you only going to grow seasonally, or are you planning to grow all year-round? If it’s seasonal, then a plastic greenhouse is ideal, and if you are going to grow all year-round, then polycarbonate is your choice.
Balance Budget Vs. Long-Term Value: When choosing a greenhouse, it is essential that you balance budget with long-term value. A plastic greenhouse basically offers short-term savings with a lower upfront cost, while a polycarbonate greenhouse requires a higher initial investment, but ultimately, it provides you with better value over time due to its durability and insulation.
Evaluate Durability Needs: If durability is top priority for you, then a polycarbonate greenhouse is what you need. It offers better protection and strength. For calm and protected areas – where there’s minimal wind, no heavy rain or snow, where temperatures are stable and mild, and where there are structures such as walls or fences – a plastic greenhouse is a better-suited and simpler option.
For instance, this GARVEE Walk-in Greenhouse with Aluminum Frame and Polycarbonate Panels that comes with a sturdy weather-resistance build, integrated gutter drainage, adjustable top ventilation, and more can be your choice if you want something durable and long lasting.
Explore more such outdoor greenhouse options on GARVEE here!
To summarize, if durability, insulation, and year-round growth are what you need, then a polycarbonate greenhouse is your top choice. If affordability and flexibility are what you are looking for, and more so for seasonal use, then a plastic greenhouse is your best option.
In conclusion, when you choose the right greenhouse material, it not only supports plant growth, but also your entire gardening experience. So, it’s important that you choose one that actually supports the way you want to grow your plants, and rest assured, your garden will grow with you.
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