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    Vitavia 8x12 Jupiter 9900 Greenhouse

    The Vitavia Jupiter 8x12 Greenhouse: Grow with Ease and Confidence. Enjoy high eaves, ample ventilation, and rust-resistant frame for worry-free gardening. Backed by a 12-year warranty for peace of mind.

    More Sizes:

    Select your Glazing:

    Which glass do I need?

    Horticultural Glass

    This is standard greenhouse glass with 2' x 2' panes that overlap and join with S clips. This glass breaks into shards.

    Toughend Glass

    Recommended! Toughened Glass is much stronger than Horticultural glass and won't crack. If it does break it disintegrates into hundreds of small pieces.

    Polycarbonate Glazing

    Polycarbonate Glazing is ideal for family gardens where safety is the No 1 priority. It's virtually unbreakable and won't shatter.

    Select your Colour:

    Add a Base Plinth (Recommended):

    Do I need a Base Plinth?

    Vitavia Greenhouse Base Plinth

    Add a galvanized steel base plinth for strength and stability. Ideal for placing straight onto slabs or concrete. Includes corner posts for soft ground installations. Your greenhouse MUST sit on a raised plinth. You can build one from bricks, timber or easiest is to buy this base plinth with your new greenhouse.

    Vitavia Base Plinth in Silver
    £96

    Get it installed by Professionals:

    Installation requires that you purchase the Base Plinth Option above. You MUST have a surface of slabs, concrete or decking. NOT soil or gravel.

    Get it installed by Professionals?

    Installation

    Please Note: Installation requires an optional base plinth (if available) on a flat, level surface like slabs, concrete, or decking that meets the minimum base size. The package includes the greenhouse, ventilation, and downpipes only; accessories and groundwork are excluded. This may extend the standard delivery time by 2-4 weeks.

    Installation is only available in these postcode areas: B, BA, BB, BD, BL, BN, BS, CA, CB, CH, CO, CR, CT, CW, CV, CV, DA, DE, DE, DH, DL, DN, DY, EH, GL, GL, GU, HD, HG, HP, HU, HX, IP, KA, KT, LA, LE, LL, LN, L, LS, M, ME, MK, ML, NE, NG, NN, NR, OX, OL, PE, PR, RG, RH, SE, SG, SK, SM, SN, ST, SW, SY, TF, TN, TS, TW, WA, WF, WN, WR, WS, WS, WV, YO.

    Installation
    £580

    Add Ventilation?

    Qty 1
    Curtain Shading
    + £27
    Qty 1
    Auto Louvre Opener
    + £48
    Qty 1

    Ventilation information

    Auto Roof Vent Opener - £38.00
    Auto Roof Vent Opener

    This automatic opener for your roof vents will automatically open your roof vents to ventilate your greenhouse when it becomes too hot.(Does not include the roof window)


    Curtain Shading - £27.00
    Curtain Shading

    Curtain shading will protect your plants from sun scorch and provide shade to moderate temperature. 6ft x 8ft.


    Louvre Window - £45.00
    Louvre Window

    A louvre window brings fresh cool air into your greenhouse to moderate the temperature inside. An essential add on.


    Auto Louvre Opener - £48.00
    Auto Louvre Opener

    This automatic opener mechanism will open your louvre window for you when you’re not around. No need to worry about ventilation, this does it automatically for you! (Does not include louvre window).


    Add Staging?

    £10 off
    1 Tier Staging Silver
    + £69
    Qty 1
    Qty 1
    Folding Staging Silver
    + £52
    Qty 1
    £6 off
    Silver Shelf
    + £29
    Qty 1

    Staging information

    1 Tier Staging Silver - £69.00
    1 Tier Staging Silver

    This 1 Tier Vitavia silver greenhouse staging gives you a handy work surface and storage area. Dimensions: 76cm (H) x 50cm (D) x 120cm (W)


    2 Tier Staging Silver - £88.00
    2 Tier Staging Silver

    This 2 Tier Vitavia silver greenhouse staging gives you a handy work surface with additional low level storage. Dimensions: 76cm (H) x 50cm (D) x 120cm (W)


    Folding Staging Silver - £52.00
    Folding Staging Silver

    This silver staging simply folds out from the frame of your greenhouse when you need it and is supported by 2 folding legs.


    Silver Aluminium Shelf - £29.00
    Silver Aluminium Shelf

    Silver aluminium shelf that fixes to side of greenhouse. 122cm x 15cm


    Add Extras?

    Max/Min Thermometer
    + £23
    Screwhooks
    + £7
    Qty 1
    Water Butt Connecting Kit
    + £17
    Qty 1

    Extras information

    Rainwater Downpipe Kit - £16.00
    Rainwater Downpipe Kit

    Kit contains 2 x Downpipes to collect the rainwater from the gutters in your greenhouse.


    Max/Min Thermometer - £23.00
    Max/Min Thermometer

    This thermometer will tell you your maximum daytime temperature as well as record the lowest night time temperature in your greenhouse.


    Screwhooks - £7.00
    Screwhooks

    These handy screwhooks screw into the roof bars of your greenhouse for to attach wire or string to for growing vine plants like tomatoes. 10 screwhooks per pack.


    Water Butt Connecting Kit - £17.00
    Water Butt Connecting Kit

    Hose and connector fittings to connect your Vitavia Downpipe to your Vitavia Water Butt.


    Add Greenhouse Flooring?

    Fastfit 8x12 Greenhouse Floor Kit
    + £330

    Greenhouse Flooring information

    The Fastfit 8x12 Greenhouse Floor Kit is the most cost effective and simple way of providing a level floor for your Greenhouse.

    Fastfit 8x12 Greenhouse Floor Kit - £330.00
    Fastfit 8x12 Greenhouse Floor Kit

    The 8x12 Greenhouse Floor Kit comes with a simple to construct click together system complete with water permeable membrane to provide essential drainage for your greenhouse whilst keeping the weeds at bay. Quick and easy preparation means no waiting times for concrete to dry.

    NOTE: This kit must be placed on a level and compacted surface that will not subside. It is essential that a greenhouse is built onto a hard, level surface to ensure stability and a long working life.

    NOTE: Our fitters only install greenhouses onto slabs or concrete and therefore is not compatible with this floor kit.


    The 8x12 Silver Vitavia Jupiter 9900 Greenhouse has high eaves and a great practical growing area with easy access through it`s double doors.

    The Jupiter Greenhouse is a greenhouse for serious growers. Being 8ft wide with double doors means plenty of space for plants of all kinds and easy access for equipment and wheelchair users. The Jupiter has nice high eaves at 4ft 11" that gives great working space and makes growing tomatoes and climbing plants a lot easier.

    This Vitavia Jupiter 8x12 has 4 opening roof vents for ventilation, a smooth sliding double door and integral gutters.

    Also known as the Vitavia Oregon.

    • 2570mm (8ft 5") Wide Aluminium Greenhouse - Practical width for serious growing.
    • 3mm Horticultural Glazing - Great Light Transmission .
    • 4 Opening Roof Vents - For good ventilation.
    • Anodised Aluminum Frame - No rust or discolourisation!
    • Double Sliding Doors with latch - Wide Access for .
    • High Eaves (1510mm) - Ideal for Tomato and Vine Plant Growing.
    • Integrated Gutters - Collect all that lovely rain water for your plants.
    • Extra Bracing and Corner Plates - For strength in roof and corners.
    • Optional 60mm Galvanised Steel Base Available Below - For rigidity and strength.
    • 12 Year Warranty - on frame and base.

    Delivery is currently within 4 weeks to UK Mainland.

    Delivery within 8-10 weeks for Green Venus and Apollo 5000 Models.

    Your exact delivery day will be confirmed with you at least 3 days before the scheduled day by email.

    Optional Installation: If you have chosen optional installation, this may add 2-4 weeks to your delivery time as stated on the website. Our installation service is provided by Greenhouse Installations UK. If you require staging or shelving assembly, you can arrange it directly with the installation team.

    Greenhouse Size Diagram

    Greenhouse Dimensions

    A: Greenhouse width

    2570mm (8′ 5″)

    B: Greenhouse depth

    3830mm (12′ 6″)

    C: Ridge height

    2300mm (7′ 6″)

    D: Eaves height

    1510mm (4′ 11″)

    E & F: Door Size

    1220mm (4′) x 2000mm (6′ 6″) (aperture)

    Minimum Base Size

    2570mm (8′ 5″) x 3830mm (12′ 6″)

    Optional Greenhouse Base with Corner Posts

    Place on hard or soft ground! Our Vitavia steel bases come with corner posts for installation on soft ground. These 18-inch posts can be sunk into soil and concreted in place for stability. For hard surfaces like slabs or concrete, simply omit the posts.

    Horticultural Glass Panels
    High-Quality Horticultural Glass for Optimal Growth

    Our horticultural glass provides superior light transmission, durability, and UV protection, ensuring optimal growth conditions for your plants.

    Anodized Greenhouse Frame
    Durable Anodized Frame for Long-Lasting Performance

    Our anodized frame offers enhanced durability, resists corrosion, and requires low maintenance. It's designed to withstand harsh weather conditions, providing long-lasting protection and a sleek, modern look for your greenhouse.

    Vitavia Greenhouse
    Vitavia Greenhouses

    Vitavia Greenhouses are known for their high-quality construction, featuring corrosion-resistant aluminium frames and a range of glazing options. Designed for both novice and experienced gardeners, they offer durability, style, and excellent growing conditions.

    Vitavia Greenhouse 12 Year Warranty
    12 Year Warranty

    Vitavia greenhouses come with a 12-year warranty on the greenhouse frame. This warranty covers any manufacturing defects in materials or workmanship. However, it does not cover glass or polycarbonate. The warranty is only valid if the greenhouse is assembled according to the provided instructions

    Frequently Asked Questions

    • Do I need a Vitavia Base Plinth?

      Yes, you'll definitely need some kind of base for your greenhouse. Here's why:

      1. The front door end of the frame sits a bit lower than the rest of the greenhouse.
      2. This means it needs to hang over something sturdy, like timber battens or a Vitavia Steel Perimeter base.
    • Why choose a Vitavia Steel Perimeter base?

      It's a great option because it:

      • Helps make sure your greenhouse is nice and square
      • Keeps everything level before you start adding the glass

      Think of it as giving your greenhouse a solid foundation to stand on. It's like making sure your house has good footings – it just makes everything more stable and secure. Remember, a well-set base means a happier, longer-lasting greenhouse!

    • How do I prepare the base for my greenhouse?

      For best results, build your greenhouse on a perfectly square and level slab or concrete base, or use anchor spikes if you have a Vitavia Base. You'll find the exact measurements and instructions for using the spikes in Section '0' of your assembly guide.

    • How is the Greenhouse Packaged?

      Your greenhouse frame and base will arrive in long, thin boxes made of sturdy cardboard. The glass packaging depends on what you've ordered: boxed for horticultural glass, or as individual sheets for full pane toughened glass.

    • Where do I find the assembly instructions?

      The assembly instructions will be in the main greenhouse box, and it will clearly state “assembly instructions in this box”. You can email us at [email protected] and we can email them to you also.

    • How long does it take to build?

      Building your greenhouse is typically a weekend project: set aside Saturday for the framework and Sunday for glazing. Remember, it's crucial not to leave the greenhouse partially glazed, and the time may vary depending on the size of your greenhouse.

    • Where should I start with my greenhouse assembly?

      Begin by thoroughly reading the assembly instructions, then prepare the ground, assemble the base frame, build the greenhouse frame, and finish with glazing - in that order. Follow the instructions step-by-step, including the summary at the front of the manual, to ensure a smooth assembly process.

    • What if I'm missing parts or something is damaged?

      If you discover any missing or damaged parts, don't worry - we're here to help! Simply email us at [email protected] with your order number, and we'll get in touch with you as soon as possible to resolve the issue.

    • Do you provide installation services?

      If you're interested in this service, just add the Installation option above. One of our Professional Greenhouse Installers will install your new greenhouse for you. All we need is a properly prepared flat slab or concrete base to fit your greenhouse onto.