The Indoor Greenhouse: A Mini Garden In Your Home

If you’re a plant lover or just want to add some greenery to your home, an indoor greenhouse might be just what you need. An indoor greenhouse is a controlled environment that allows you to grow plants year-round, regardless of the weather outside. It’s a great way to provide your plants with the ideal growing conditions they need to thrive.

Indoor greenhouses come in a variety of sizes and styles, from small tabletop models to larger freestanding units. They can be made of different materials, such as glass, plastic, or even wood. Some indoor greenhouses are designed for specific types of plants, such as succulents or herbs, while others are more versatile and can accommodate a variety of plants. With an indoor greenhouse, you can create a mini garden in your home and enjoy fresh herbs, flowers, and vegetables all year long.

Understanding the Indoor Greenhouse

An indoor greenhouse is a structure designed to provide the ideal growing environment for plants. It can be as small as a tabletop unit or as large as a room.

When choosing an indoor greenhouse, consider the size and space you have available. Think about the structure and shape of the greenhouse. How will it fit into the available space in your home? You should also consider the interior space of the indoor greenhouse. Will it be enough to meet your gardening goals?

Indoor greenhouses come in a variety of shapes and sizes, from small tabletop units to larger structures that can take up an entire room. Some indoor greenhouses are freestanding, while others can be mounted on a wall. They can be single-level structures or shelving units that allow you the best use of your floor space.

The structure of an indoor greenhouse is typically made of materials like metal, wood, or plastic. The walls can be made of glass, polycarbonate panels or clear plastic to allow sunlight to penetrate the greenhouse for optimum plant growth.

In addition to providing the ideal growing environment for plants, indoor greenhouses can also be aesthetically pleasing. They can be used to create a beautiful indoor garden or to showcase a collection of plants.

Build Your Own Indoor Greenhouse

Small indoor greenhouses are inexpensive to buy, but you may satisfy your needs better by building your own. There are plans available, but if none of them meet your needs, you can design one yourself. Before starting, it would be worth checking the prices on ready-made units. There are some excellent deals out there.

When it comes to building an indoor greenhouse, the choice of materials is critical. The most commonly used material for the cover is plastic. Glass makes a more attractive greenhouse, but it is also more expensive, more fragile, and heavier. The frame can be wood, PVC, or metal.

Wood is a popular framing choice for a DIY greenhouse. It is easy to work with and affordable, However, you will need to maintain it to prevent rot from moisture. PVC is another inexpensive DIY option for framing. It may not be as attractive as wood, but it is lightweight, moisture resistant, and requires little maintenance.

Metal is a good choice for a larger, purchased indoor greenhouse. Rust resistant steel or aluminum frames are durable, but may not be as easy to work as wood or PVC, especially if you have limited DIY experience.

There are so many design choices for indoor greenhouses that it would be impossible to give a meaningful step-by-step building guide here. It can be a simple task you can finish in an hour, or it may take you a day or two depending on your experience and the size of the structure.

Growing Conditions and Maintenance

To ensure successful plant growth in your indoor greenhouse, it’s important to provide the right growing conditions and perform regular maintenance. Here are some tips to help you create an optimal environment for your plants:


Light is one of the most important factors for plant growth. Your indoor greenhouse should receive at least 12-16 hours of light each day. If you don’t have access to natural light, you can use grow lights. LED grow lights are energy-efficient and can provide the full spectrum of light that plants need.

Temperature and Humidity

Plants require a specific temperature range and humidity level to thrive. The ideal temperature for most plants is between 65-75°F (18-24°C) during the day and 60-65°F (15-18°C) at night. Humidity levels should be between 50-70%. If your greenhouse is too dry, you can use a humidifier to increase the moisture in the air.


Proper watering is crucial for plant growth. Over-watering can lead to root rot, while under-watering can cause plants to wilt and die. It’s important to water your plants consistently and make sure the soil is moist but not waterlogged. You can use a moisture meter to help determine when it’s time to water.

Pest Control

Pests can quickly destroy your plants if left unchecked. Regularly inspect your plants for signs of infestation, such as yellowing leaves or holes in the foliage. You can use natural pest control methods, such as neem oil or insecticidal soap, to help keep pests at bay.

By following these tips and performing regular maintenance, you can create a healthy and thriving indoor garden in your greenhouse.

Planting in Indoor Greenhouses

Whether you’re growing sprouts, herbs, vegetables, flowers, seedlings, fruits, avocados, carrots, hot peppers, or spinach, an indoor greenhouse can provide a controlled environment for optimal growth.

Before planting, it’s important to choose the right soil and containers. You can use a high-quality potting soil mix or create your own custom blend. Make sure the container is large enough to accommodate the plant’s root system and has proper drainage holes.

When planting seeds, follow the instructions on the seed packet for depth and spacing. Cover the seeds with soil and water lightly. Keep the soil moist but not waterlogged. As the seedlings grow, thin them out to prevent overcrowding.

For herbs, tomatoes, vegetables, and fruits, choose varieties that are well-suited for indoor growing. Provide adequate light, either through natural sunlight or artificial grow lights. Water regularly and fertilize as needed.

Flowers can add a pop of color and beauty to your indoor greenhouse. Choose varieties that thrive in indoor environments, such as African violets, begonias, and orchids. Provide proper lighting and keep the soil moist.

If you’re growing seedlings, make sure they have enough space to grow and develop. Use a tray or container with individual cells to prevent overcrowding. Water regularly and provide adequate lighting.

Overall, planting in an indoor greenhouse can be a fun and rewarding hobby. With proper care and attention, you can enjoy a bountiful harvest of fresh produce, beautiful flowers, and thriving plants.

Additional Features and Accessories

Indoor greenhouses come with a variety of additional features and accessories that can help you optimize your growing environment. Here are some of the most common ones:

  • Fans: You may not need a fan for a small indoor greenhouse. Simply open it to reduce the humidity inside. For larger units, fans improve air circulation, preventing mold and mildew growth. They also help regulate temperature and humidity levels.
  • Grow Lights: Chances are, you will need to add grow lights to make sure your plants can thrive with enough hours of light during the day.
  • Mini Greenhouse: A mini greenhouse is a great way to start seedlings and protect delicate plants in your home, especially those that require a more humid environment. They come in a variety of sizes and shapes, and can be used both indoors and outdoors.
  • Cabinet: A cabinet, or some other kind of storage, helps to keep your gardening tools and supplies in a convenient location. You can use one as a base for a table top greenhouse or get creative and incorporate storage space into a shelf, or other type of indoor greenhouse.
  • Shelves: Shelves provide additional space for your plants and can be adjusted to accommodate plants of different sizes. One type of indoor greenhouse is a shelving unit with a plastic cover that works great for potted plants.
  • Tools: Gardening tools such as pruners, scissors, and watering cans are essential for maintaining your plants and ensuring their health. Make sure to choose high-quality tools that are easy to use and durable.
  • Timer: A timer can help you automate your lighting and watering systems, ensuring that your plants receive the proper amount of light and water at the right times.
  • Hygrometer: A hygrometer can help you monitor the humidity levels in your greenhouse, ensuring that your plants are getting the right amount of moisture. It’s a good idea to have one even if you’re using a mini greenhouse.
  • Heater: Unless you have your indoor greenhouse in an unheated room, you probably don’t need a heater. If your circumstances require one, make sure to choose a heater that is safe and energy-efficient.
  • Containers: Containers come in a variety of sizes and shapes to accommodate a wide variety of plants. Make sure to choose containers that are appropriate for the size and type of plant you are growing.
  • Location: The location of your indoor greenhouse is important for ensuring that your plants receive the right amount of light and temperature. Make sure to choose a location that is well-lit and has access to a power source.
  • Adjustable Shelves: Adjustable shelves are a great way to accommodate plants of different sizes and shapes. They also help you make the most of your available space.
  • Accessories: There are a variety of accessories available for indoor greenhouses, including grow lights, humidity trays, and plant stands. Make sure to choose accessories that are compatible with your greenhouse and will help you achieve your gardening goals.

Choosing the Right Indoor Greenhouse

When it comes to choosing the right indoor greenhouse, there are several factors to consider. Here are some key things to keep in mind:

Size and Compactness

Consider the size of the indoor greenhouse you need. If you have limited space, a compact greenhouse might be the best option. A compact greenhouse can fit on a small balcony or patio and can be easily moved around. Look for a greenhouse with wheels for added portability.


The material of the greenhouse is also important. Polycarbonate and polyethylene are both great options for their durability and waterproof properties. Fir and cedar woods are also popular choices for their natural look and durability.


Good ventilation is essential for a healthy indoor garden. Look for greenhouses with vents that can be opened and closed to regulate temperature and humidity.


The cover of the greenhouse is also important. Polyethylene covers are affordable and easy to replace, but they may not be as durable as other materials. Plastic mats or lids can also be used to cover the greenhouse.


Price is always a consideration when choosing an indoor greenhouse. Picture frame mini greenhouses are affordable and can be a great option for small spaces. Greenhouse cabinets are also a good choice for those on a budget.

As you can see, there are many factors to consider when choosing the right indoor greenhouse for your needs. Keep in mind your budget, space limitations, and the materials and features that are most important to you.

Frequently Asked Questions

What are some of the best plants to grow in an indoor greenhouse?

There are many plants that thrive in indoor greenhouses, including herbs, vegetables, and flowers. Some popular options include tomatoes, peppers, basil, mint, and roses. When choosing plants, consider the amount of light, humidity, and temperature that your indoor greenhouse can provide.

How do I choose the right size for my indoor greenhouse?

The size of your indoor greenhouse will depend on the number and size of plants you want to grow, as well as the space you have available. Consider the height and width of the plants you want to grow, as well as the space needed for walkways and equipment. It’s better to choose a slightly larger size than you think you need, to allow for future growth and expansion.

What are some of the benefits of having an indoor greenhouse?

An indoor greenhouse allows you to grow plants year-round, regardless of the weather outside. It also provides a controlled environment, so you can adjust the temperature, humidity, and light to suit the needs of your plants. Indoor greenhouses can improve air quality and add a decorative element to your home or office.

Can I use artificial light in my indoor greenhouse?

Yes, artificial light can be used in an indoor greenhouse to supplement natural light or provide light when natural light is not available. LED lights are a popular choice for indoor greenhouses, as they use less energy and can be adjusted to provide the optimal spectrum of light for plant growth.

What materials should I use to build my DIY indoor greenhouse?

The materials you choose will depend on your budget, the size of your greenhouse, and your personal preferences. Common materials include PVC pipes, wood, and polycarbonate panels. It’s important to choose materials that are durable, weather-resistant, and provide adequate insulation.

Where can I find a reliable indoor greenhouse for sale?

There are many online retailers that sell indoor greenhouses, as well as local garden centers and home improvement stores. It’s important to choose a reputable seller and read reviews from other customers before making a purchase. Consider the size, features, and price of the greenhouse before making a decision.

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Gary Stevens

My initial goal to control the quality, health, and safety of my food led me to discover the wonders of greenhouse gardening and to share those wonders with the widest possible audience. I'll never stop learning about this fascinating topic, and I'm thrilled to be able to share it with others.

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