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Buying a Greenhouse (5)

How do you make a lean-to Greenhouse?

A lean-to Greenhouse is built using an already existing external wall as one of its edges. This is usually the outside wall of a home, conservatory, or other solid building.


The structure is built leaning against the wall, giving the lean-to Greenhouse its name. Glass panels form the rest of the Greenhouse, the transparent elements allowing light and thermal energy to be produced.


Dwarf walls made out of brick can also be added as a feature, to match the structure with the existing building.


Depending on the style of lean-to Greenhouse, you can opt for sliding or fold-out doors as entrances. Hinge windows for ventilation can also be added.


Many growers train their plants to grow up the brick wall, making full use of the lean-to Greenhouse area.

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What are the different types of Greenhouses?

There are many different types of Greenhouse, depending on your available space and style preferences. At Hartley Botanic, our Greenhouses for sale cover a range of aesthetics – from Victorian Glasshouses, Heritage, Modern, and Bespoke Greenhouses, to small Greenhouses and patio Glasshouses for those limited on outdoor space.


Dethatched or free-standing Greenhouses are stand-alone structures that are built separately from a building. Lean-to Greenhouses, on the other hand, make use of an existing external wall as one of its edges.


Greenhouses can adopt a variety of layouts and structures. Many choose to include a dwarf wall to ensure the Greenhouse compliments the rest of the property, and for greater insulation. A cement or brick base is a popular choice for Hartley Botanic Greenhouses, for sturdy structural support.

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What architectural style is the Glasshouse?

Greenhouses and Glasshouses can come in a range of architectural styles.

Victorian Glasshouses

Many people recognize the traditional Victorian Glasshouse as one of the first and finest examples of Greenhouse growing. Typically grand in style, the Greenhouse was originally primarily used by the rich and wealthy of that period. Glass was an expensive material, so it became synonymous with privilege and status. Elaborate glass buildings were designed and created by the Victorians, as a place not only to grow their exotic plants but also to take refuge and relax.

Much of today’s modern Greenhouses draw inspiration from the Victorian style, incorporating new designs for a bespoke and eye-catching Glasshouse.

Modern Greenhouses

As the minimalist style grew in popularity, this too transferred onto the designs of Greenhouses. Hartley Botanic boasts a range of sleek and modern Greenhouses that will fit perfectly into any garden. Combining contemporary styles with concealed engineering, the end result is aesthetically pleasing a subtle nod to the Victorian timber-framed roots.

Bespoke Greenhouses

Whatever your architectural vision for a bespoke Glasshouse, Hartley Botanic is here to help. One popular style is to incorporate a dwarf wall in the Greenhouse design. This allows the structure to blend with your current home, matching the bricks of the exterior walls.

For homes with smaller outdoor spaces, lean-to Greenhouses are a fantastic alternative. They make use of a current exterior wall, yet still feature the classic and eye-catching framing of a full Greenhouse.

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What is better for a Greenhouse - plastic or glass?

Glass is the strongest of all Greenhouse materials, making it a popular choice over plastic Greenhouses.


Glass Greenhouses typically have a more magnificent appearance. The eye-catching designs make them the center of any garden and the clarity of the glass gives the feeling of being outdoors. This also means that glass Greenhouses transmit the lightest – nearly 100% – retaining this quality for many years when properly taken care of.


Their durability and permanence mean that glass Greenhouses often add value to your home or residence.

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Can a Greenhouse have brick walls?

While a Greenhouse cannot have entirely brick walls, dwarf walls can be advantageous. These small walls are not only eye-catching in their design, but they also provide greater insulation for your plants.


Lean-to Greenhouses also utilize an external wall – usually brick – for one of their sides. Growers often train their plants to grow up these brick walls.

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Greenhouse Maintenance (5)

How much ventilation does a small Greenhouse need?

Ventilation is crucial to controlling the temperature and managing humidity levels inside your small Greenhouse. By having a good amount of Greenhouse ventilation, you provide your plants with the nourishment they require to survive.


The easiest way to ventilate small or mini Greenhouses is by having roof or side vents that provide regular cooling air changes throughout. This is known as natural ventilation.


Mechanical ventilation involves using fans or other devices to ensure the air is kept circulating throughout your Greenhouse.


The standard rule is, for every 50 sq ft of floor area, you should aim to have ten sq ft of ventilation for your small or mini Greenhouse, whatever your method of choice.

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How do you build a greenhouse misting system?

Greenhouse misting systems are a perfect way to care for your plants. Although they can be bought, you always have the option to build one yourself.


While you don’t need many materials to create a misting system, you do need to ensure you have a plan before going into the building stages.


Here are some top tips on building a greenhouse misting system for a small greenhouse.


  • Make sure all your parts fit together and check the measurements. You don’t want to reach the installation stage to find out your parts don’t fit.
  • Focus on your water source. Check that a tube adaptor will fit, that the pressure control is appropriate and how far you’ll place the tap from your greenhouse.
  • Create the misting system based on what plants you are growing and the climate.
  • Having a misting system is not a substitute for having good ventilation. Before you create a misting system, ensure you have strong ventilation.


To build a small greenhouse misting system, you first need to place a filter (ideally mesh) onto the tap. Once you’ve screwed the adapter onto the tap, push the “barbed” end into the tube and make sure it fits properly.


Then, you need to run tubing from the tap along your greenhouse or shelving. It is best to attach a few zip ties on the way to keep everything in place. When this is done, add your end cap to the end of your water supply tubing.


Wherever you’re hoping to insert a nozzle, cut the tubing, insert the compression fittings you have chosen and press in a nozzle at the bottom of each compression fitting.


Finally, you’re ready to turn on the water. You must turn the water on slowly to ensure you have the correct water pressure for the nozzles.

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How do you maintain a small greenhouse?

A small greenhouse is an exciting addition to any garden, but maintenance should be done regularly to create the perfect environment for whatever you choose to grow.


By cleaning, disinfecting and sweeping your greenhouse, you are sure to keep pests away and have a controlled area. It is also important to deal with any weeds and remove any plants that develop diseases, as they can be transferred around your greenhouse very easily.


One of the best ways to maintain your small greenhouse is by undertaking daily observations. This way, you can be on the lookout for any pests or see any areas that need an urgent clean.

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How much ventilation does a small greenhouse need?

Ventilation is crucial to controlling the temperature and managing humidity levels inside your small greenhouse. By having a good amount of greenhouse ventilation, you provide your plants with the nourishment they require to survive.


The easiest way to ventilate a greenhouse is by having roof or side vents that provide regular cooling air changes throughout. The standard rule is, for every 50 sq ft of floor area, you should aim to have ten sq ft of ventilation.

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How would you change the broken glass in the door of a greenhouse?

To replace broken glass on our doors – Simply remove the infill strip in the center of the glazing capping. This will expose the stainless-steel screws securing the capping to the door which clamps the glass in place. With the screws removed the capping will pull away allowing the glass pieces to be removed. Re-installation is a reversal of the removal process.

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Heating a Greenhouse (5)

Do small Greenhouses work in winter?

A small Greenhouse is a fantastic way to keep your plants protected during winter. Shield from frost and the cold elements and ensure optimum growing conditions are maintained.


An unheated small and mini Greenhouses allow you to grow hardy winter vegetables, as well as begin propagating. In winter, small Greenhouses work by trapping as much light as possible from the sun during the day and converting it into thermal energy to keep the inside warm.


If you need some extra insulation over winter, consider bubble wrapping your small Greenhouse. This is the most cost-efficient way of heating a Greenhouse, however other artificial methods (such as electric heaters) are also available.

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Will a small Greenhouse keep plants from freezing?

Small Greenhouses are fantastic insulators, meaning they will keep your plants from freezing during winter.


The glass panels of a small Greenhouse work by letting in as much light as possible from the sun, trapping its thermal energy. Objects inside the Greenhouse – such as plants and soil – are heated, and remain warm and protected from the elements.


The size of the Greenhouse doesn’t matter either. They all work in an identical manner, so even mini Greenhouses will be efficient at keeping your plants from freezing. Proper insulation is key to maintaining healthy plant growth, especially during cold weather.

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Do mini Greenhouses protect from frost?

Mini-Greenhouses are great protectors against frost during winter. Many growers use Greenhouses to protect their plants from the elements over the colder months, including frost and other harsh conditions.


Temperatures are typically around five degrees higher inside a mini-Greenhouse, keeping your plants from freezing.


You may want to consider further artificial ways of heating your mini-Greenhouse, particularly during an extreme winter or if you have plants that prefer a warmer climate.

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What can you grow in a greenhouse over winter?

It’s simple and easy to use an unheated Greenhouse during winter. By using heating or artificial light, many species of plants can grow in a Greenhouse during the winter months.


Most Greenhouses are used to protect plants from the effects of low temperature during winter – the heat-trapping materials ensure that your plants are protected from cold weather and harsh conditions, while also continuing to grow. This, when combined with other sources of artificial heating, means Greenhouses often work well in winter.


The specific plants and vegetables that can be grown in a Greenhouse over winter depend on your location, the size, and the level of heating of your Greenhouse.

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Why should you put bubble wrap in a greenhouse?

Gardeners add bubble wrap to their greenhouses primarily to add another layer of insulation. Bubble wrap retains any valuable heat from the day, which can be used to protect against frost at night.


It is important to remember, however, that bubble wrap retains heat. So, during the warmer months, it is critical to monitor the conditions inside your greenhouse to avoid any plants wilting.

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Preparing the site for a Hartley Greenhouse (5)

Can I put a Greenhouse on my balcony?

If you’re limited on outdoor space and want to place a Greenhouse on your balcony, the Hartley Botanic Patio Glasshouse is a great option.


The patio Glasshouse uses an already existing external wall as one of its sides. The narrow design makes it perfect for balconies, where larger Greenhouses may not fit.


Patio Glasshouses work by trapping heat from the sun and turning it into thermal energy, keeping your plants warm and protected from any external elements. During summer, hinged top panes and double sliding doors ensure that the patio Greenhouse is kept well ventilated.


The compact design maximizes the available growth area without compromising on quality. Patio Greenhouses can be maneuvered into smaller spaces, ideal for balcony growers.

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How do you build a brick base Greenhouse?

Once your deposit on your Hartley Botanic Greenhouse is placed, we will provide the drawings for your builder to construct your brick base Greenhouse.


In general, brick based Greenhouses are preferred by our growers as they offer a more robust foundation with a neater finish. The Greenhouse is placed over the brick and tightly secured.

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Can you put a Greenhouse on bricks?

For large Greenhouses, brick bases are often preferred, as the brick provides a neater edge for the Greenhouse to lip over and a strong base on which it can be secured.


You should consult a good local builder when planning your large Greenhouse base. We will provide brick base plans to work to.

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Do you measure and install the greenhouse on two levels?

Yes, we would visit site, measure, and prepare a quotation for you. If you then placed an order our technical office would visit to take accurate measurements to enable us to prepare detailed drawings for the base to be built. We would then install the greenhouse onto your pre-prepared foundations.

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Delivery (2)

How long does it take for my order to be made and delivered?

Every greenhouse is made to order, delivery time depends on size of greenhouse and time of year. In order to estimate the delivery time for your desired greenhouse model, please contact the Hartley team.

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Can you deliver abroad?

We deliver and install Glasshouses and Greenhouses all over the world. In fact, we have delivered and installed in over 20 Countries in the past two years. We welcome enquiries, which would usually be dealt with by our UK Sales team. Get in touch with [email protected] for more information.

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Existing Hartley Botanic greenhouses (2)

How can I open a stuck greenhouse lock?

If the lock was last used some time ago the bolt may have become stuck due to moisture, debris, corrosion etc. We would suggest a penetrating / water dis-placing oil applied liberally into the lock mechanism. This should release the lock.

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