27 Greenhouse Accessories

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Greenhouses are the ultimate growing environment for people who are dedicated to the hobby of gardening. As well as the structures themselves greenhouse accessories can come in a wide variety of shapes and forms with multiple uses and adaption’s.

Greenhouse accessories can further allow the gardener to extend their growing season allowing for more exotic plants in the summer and grow hardy vegetables in the winter. Electric fan heaters, digital thermometers, grow lights and greenhouse manuals all make for, exciting greenhouse accessories. These can make great gifts for birthdays or just a special occasion. Maybe you have just bought your first greenhouse and excited about the new possibilities for your up and coming growing season.

​The idea of greenhouses and growing under cover goes back a long way. By allowing UV light to pass through a glass house allows warm air to accumulate within the structure.

This provides the perfect sheltered growing environment for young plants or even more exotic varieties. Buying a greenhouse can accelerate a gardeners ability to grow earlier and later in the growing season. Greenhouses also give the ability to grow more resilient fruits and vegetables straight through the winter months. Some of these include spinach, cabbage and lettuce.

Greenhouse accessories can increase the productivity of your space even further. This can be achieved by providing deeper soil, pest control, heating and also even a little bit of humour. Greenhouse accessories allow for customisation and specific growing enhancements for specific planting types.

​So why not check out our extensive list of cool greenhouse accessories below? You will not be disappointed with our comprehensive list.

Greenhouse heater

Most greenhouses warm up extremely quickly on sunny days especially in spring when conditions outside can be still very cold. This means seedlings and young plants get to burst into life much quicker that anything possible outdoors.

On the other hand however on cloudy days and the depths of winter greenhouses can be extremely cold at night. In fact at night greenhouse temperatures can match those of outside meaning winter mercury below freezing. This can be problematic especially if greenhouse gardeners wish to keep exotic plants alive all year or raise plants early in the season.

In spring greenhouse temperatures can fluctuate so much young plants can become overwhelmed and stressed. Hence serious gardeners regularly invest in a robust greenhouse heater. This fantastic greenhouse accessory can keep the greenhouse extremely warm even in the depths of winter.

​This results in a complete revolution of the gardening calendar and allows a gardener to enjoy their hobby even in the depths of winter time. 

Timber Planter

Sometimes the only thing that can limit greenhouses growing capabilities is its growing medium. Soil is one of the most important factors in providing healthy plants in any environment.

The reason why this is so important in a greenhouse is normally plants are grown in pots. The reason for this is most greenhouses sit upon a solid concrete base. Gardeners know that plants grow much better in the soil than in pots. This is because the greater volume of soil means a more consistent moisture content.

​Pots are prone to drying out and over watering making most greenhouse gardening far from optimal. Pots also can mean less nutrients available than in larger volumes of soil. One of the best greenhouse accessories to rectify this problem is a raised timber planter. This planter will allow you to add a large volume of soil and deeper growing medium perfect for allowing your plants grow to their very best potential.

Cold frames

Cold frames work on the same principle as greenhouses but are much smaller and usually used for hardening off young plants in spring. One of the added bonuses of cold frames is they can be situated against the wall of a building which provides heat and shelter.

This means cold frames can easily take advantage of microclimate adding to more warmth during those colder parts of the season. These are a popular way of germinating seeds early in the year and due to their compact nature rarely suffer from pests.

Traditionally cold frames have come in a box shape with an opening top but there are now many on the market with some actually resembling miniature greenhouses. Some of the best cold frames in my opinion are the cupboard cold frames which are basically a glass wardrobe.

​These are perfect for starting off rows of seeds in springs or growing heat loving crops like chillies or even melons. These cold frames if situated on a south facing wall can be warm all year round making them ideal for overwintering less hardy plants.

Cupboard cold frame

This cupboard cold frame has all of the conveniences of an orderly cupboard but at the same time acting as a greenhouse. The swinging doors ensure heat is easily locked in while shutting pests outside. This cold frame can be kept outside against a wall or even used as a propagation area inside the greenhouse.

​Its stacked shelf system means you can germinate multiple seedlings knowing they are safe from all risk of frost. The cold frame is made of rigid plastic meaning no replacement covers or the risk of broken glass.  This cupboard cold frame is perfect for starting off young plants in spring allowing them to get to a hardy size before planting outside.

Greenhouse shelving system

Greenhouse gardening is a subject all of its own and requires a level of knowledge and skill. A typical greenhouse or polytunnel has various zones of heat and humidity.

Generally the higher up in the greenhouse the hotter and more humid the greenhouse becomes. This means plants can be positioned to a height which directly facilitates their optimum growth.
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 For example young seedlings positioned near the top of the greenhouse will benefit from extra heat and out of reach of ground dwelling pests. The only real way to take advantage of these greenhouse zones is to obtain a good  shelving system. This shelving system is easy to assemble and will ensure the efficient use of vertical space within your growing area.

Seed tray staging

Seed tray staging racks are fantastic greenhouse accessories enabling you to germinate multiple seeds by stacking growing systems vertically. This is particularly useful in the spring and summer when greenhouse space is taken up by copious amounts of young developing seedlings.

Another benefit of these staging structures is they help prevent garden pests like slugs and snails reaching the new plants. Seed tray staging is effective for both commercial and domestic growing undercover with a wide range of materials and styles to suit your needs.
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These useful greenhouse accessories allow you to maximise the vertical spaces within the structure and are not restricted to just germination. During the height of the growing season these multiple levels can also be used to grow hanging varieties of plants. Tomatoes are a great example of fruiting plants which can be grown down structures such as seed staging to maximise greenhouse growing space.

Mobile seed sprouting trays

Seed sprouting trays at first glance are similar greenhouse accessorries to the seed tray staging above. The main difference with these is they generally focus on quick and condensed growing of crops such as cress and microgreens.

Taking advantage of the humid, warm and light conditions of the greenhouse much tasty dense foliage can be produced very quickly. These sprouting trays can be sowed in succession allowing for a continuous supply of fresh growing material. The mobile nature of these growing trays mean they can easily be worked with to even an industrial scale.

​As well as food production on a commercial scale they can also be used for quick germination for standard vegetable growing. Growing trays can use hydroponics or soil based systems.

Greenhouse potting tray

Greenhouse gardening can be a pleasure but it is also high pace, especially during the growing season. The greenhouse in early April can be as hot as a typical summer day outside meaning plants grow at an exceptional rate.

​This means growing areas can soon become overcrowded and messy. One of the best greenhouse accessories for this problem is a potting tray. This allows you to condense any mess or potting materials in one area as you work. This potting tray enables the greenhouse gardener to move soil and pot up new plants with a minimum of fuss and mess.

Mobile potting bench

For larger greenhouse and polytunnel gardening operations a sturdy and comfortable place to sit and work is always worthwhile.  Gardeners can always be tempted to crouch or keel awkwardly when carrying out tasks such as taking cuttings and sowing seeds.

​This can mean extra strain on the knees and even lead to injury. Hence a great greenhouse accessory can be this mobile potting bench. This mobile work station provides a comfortable place to work on all those timely greenhouse projects throughout the gardening calendar.

Seedling heat mat

There is no better way to spring young plants and seedlings to life than the warmth of a heat mat. These cool garden gadgets plug into the mains electricity supply and very easy to use.

​Simply place the mats under pots and seed trays to provide the extra warmth they need. These are particularly useful in the greenhouse during late winter and early spring time when it is still very cold. They come in a wide variety of sizes and shapes to suit every gardeners needs.  

Electric heated propagator

Even though the greenhouse is generally a warm and comfortable place to grow all sorts of plants sometimes extra heat and shelter is needed. This is particularly the case with trying to germinate and grow more exotic varieties.

Most greenhouses in temperate climates can still become very cold at night. Some warm loving plants prefer consistent warm temperatures especially during germination and early life. One of the most effective greenhouse accessories to cater for this is an electric heater propagator.

​This compact growing compartment makes germination easy and very effective even if night time temperatures drop below freezing.

Outdoor digital thermometer

One of the great things about growing under cover in greenhouses is the ability to grow inside a controlled environment. Every greenhouses temperature will fluctuate throughout the season depending on how large it is and its positioning.

​Getting to know your greenhouses varying temperature fluctuations is essential to mastering optimum growing within your space. This outdoor digital thermometer is a perfect way to do just this. It allows you to make a record of temperature readings throughout the growing season allowing you to better manage your gardening operations.

Soil testing kit

Generally greenhouse growers have the ability to choose their soil type due to the fact most things are grown in pots or raised beds.

On the whole this is a great advantage but smaller planting areas means a greater chance of fluctuations in a soils fertility, acidity and moisture content. Seeing all these factors are essential for growing success it is beneficial to monitor the soils condition.

​A great greenhouse accessory is this small, digital soil testing kit. It allows you to take accurate readings on the soil quality so you can both monitor and perfect your greenhouses growing medium with ease.

Seed pack tin

One thing that greenhouse growing allows you to do is germinate seeds for a longer period throughout the year. Germinating seeds is one of the most exciting parts of gardening so greenhouse growers are never short of new exciting projects.

Greenhouses however being rather humid places can provide problems for a typical seed growing gardener.  Typically open seed packets made of paper can become moist and soggy when left in the greenhouse for too long.  

​Also the extreme temperature fluctuations inside greenhouses can have a negative effect on germination rates. This seed pack tin will enable greenhouse gardeners a strong and sealed place to keep their seeds so they are always dry and ready to use.

Insect hotel

Many have often thought that greenhouses are a sealed and separate environment separate from the rest of the outside world. This is not actually true with plants still requiring pollinating insects and ecological balance to flow throughout the space.

Greenhouses can soon become infested with a pest species that has no natural control methods. Most greenhouses have to be opened up during the summer months to allow for suitable ventilation. This means it is a better cause of action to encourage predator species such as solitary wasps and pollinators such as bees.

​Insect hotels like the one above are perfect greenhouse accessories encouraging beneficial ecology to the greenhouse. 

Slug trap

Unfortunately for all gardeners slugs and snails seem like they are here to stay. Greenhouses generally are good at keeping these little plant munching pests out but especially slugs can get in.

​Slugs and snails can cause a tremendous amount of damage to small plants very quickly so it is best to take no chances. This slug trap with help catch any slugs or snails that slip through the net so your plants will not get wiped out any time soon.

The greenhouse gardener’s manual

​This comprehensive guide to growing undercover is the ultimate greenhouse reference accessory. The book enables gardeners to get the very most out of their growing both spaciously and seasonally.  This resource is packed with information which can excel your greenhouse projects from germination all the way through to harvesting and overwintering.

Digital weather station

Greenhouses are thought of as separate environments from the outside but these manmade biospheres do have their own microclimates. The transparent sides do not only hold in light and heat but also moisture.

​These micro climatic features can have a dramatic influence on what can be grown inside the greenhouse. A great way to monitor these inside conditions is with this digital weather station. This hi-tec greenhouse accessory is perfect for monitoring humidity and temperature even from your smart phone.

Mighty dripper greenhouse irrigation bag

Greenhouse growing although fun and productive does have its drawbacks. One of the biggest drawbacks being the very manual nature of keeping the space well watered.

Many greenhouses rely on pots and raised beds to grow within a confined area. Smaller bodies of soil mean much more chance of the ground drying out leading to poor growing conditions. Not benefiting from the natural hydraulic cycle no amount of rain will keep a greenhouse watered.

The first obstacle here is to firstly remember to irrigate in warm weather and also the method of watering. When watering smaller pots and raised beds it is common for water to run over the top of dry soil or simply run away at the bottom. The best way to water in a greenhouse is little and often to ensure maximum absorption.

​This can be achieved by an electrical timer and drip feed pipes but this can be expensive and unsustainable. This Mighty dripper greenhouse bag on the other hand is ecological and will water your plants slowly. It can hold up to 10 litres simply fill the bag, hang it above the soil and point the pipe where you wish the water to go.

Plant labels

Growing inside a greenhouse gives the gardener so much choice and flexibility in what they want to grow. Unless you have a huge commercial polytunnel however space can be at a premium.
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Trying to fit in all of the things you wish to grow can be a challenge. Hence it is a good Idea to label all of the things you have inside the greenhouse. These quality plant labels are extremely useful greenhouse accessories with the option to reuse them multiple times.

Small wildlife pond

For many the idea of a small wildlife pond taking up space within the greenhouse is a ludicrous notion. However wildlife ponds can help raise the humidity levels which can benefit some plants.

Rain water from the greenhouse roof can be collected and channelled into a pond providing a natural way to water greenhouse plants. The best reason however to install a pond is to encourage beneficial creatures that will eat greenhouse pests.

​Small amphibians such as frogs and newts will help eat through pests such as slugs and burrowing beetles.

Gardeners trowel set

A great thing about greenhouse growing is that you can organise all plants within a compact growing situation. This means you can spend extra attention to specific sections of your greenhouse maximising the care you give your plants.

Greenhouse growing typically utilises raised beds and pots which can make it easier to work the soil and keep weeds at bay. This means growing undercover can be an up, close and personal affair requiring smaller hand utensils than larger gardening tools.

​This gardening hand tool set make perfect greenhouse accessories helping you to plant, sow and weed in your glass house.

Greenhouse grow light

Even though greenhouse’s have the extraordinary ability to create an environment much warmer than the climate they reside in, night time temperatures can still drop dramatically.

Early on in the season greenhouses can get very cold making it difficult for young plants to become strong. One of the best ways to mitigate this problem is to invest in this Greenhouse grow light.

​These greenhouse accessories can keep your plants warm and growing well even in the middle of winter. This grow light is perfect if you want to produce micro greens in the depths of the colder months.

Greenhouse sign

Sometimes greenhouse gardeners just need a little time to escape away and do the things they love. This makes shutting yourself away in the greenhouse a perfect retreat.

​This intimate relationship gardeners have with their greenhouses means they often wish to add their own personalisation. A great way of doing this is by mounting a greenhouse sign. These can be personalised or have a funny message. This greenhouse accessory is bound to have your guests laughing their socks off.

Paper pot maker

If there is one thing that can be said about gardeners it is that they care about the environment. Nurturing and growing young plants is one of life’s delicate miracles.

In modern times it is becoming clearer that ecological destruction is on the increase. What we do in our homes and gardens also has an impact on the greater environment. One of the biggest polluters of gardening comes from the plastic used in pots.

​Plastic pots are commonly only used once and then thrown away making them completely unsustainable. This paper pot maker allows greenhouse gardeners to utilise waste paper into perfect pots for growing seedlings and young plants.

Sowing and harvesting calendar

Due to the fast nature of greenhouse growing gardeners have to be on their toes. Sowing seeds at the correct time can be vital to ensure plants get as developed as possible before the season.

Being organised in this way will ensure the greenhouse gardener has as much productive growing as possible. There is no better way of reminding gardeners what should be grown and harvested when than this sowing and harvesting calendar.

​This is one of the best greenhouse accessories for organising your gardening season under cover.  

Thank you for reading our article on Greenhouse Accessories. If you would like to see more greenhouse products check out our article on top Greenhouse gifts here. 

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