Greenhouse Advice

The next split in a polytunnel cover can begin where the film touches the frame. Heat and friction at that contact deserve checking before you buy another sheet; Premier Polytunnels recommends protective tape on the hoops for those reasons. If you need to replace a polytunnel cover, inspect what lies underneath first. Then compare a patch, a new sheet and a complete greenhouse on the same area of ground.

Can you build your own greenhouse for less than a £999 kit once the door opens, the panels are fixed and the frame is anchored? The answer can be yes, especially with materials and tools already to hand. Buying new changes the calculation. Below, a dated materials basket, a used greenhouse and a NORDIC kit share one cost sheet, with unfinished costs kept in view.

You have found the greenhouse, the price is right and the checkout is one click away. Before you press it, spend twenty minutes on the seller. A greenhouse bought online is usually paid for in full, made or packed to order and delivered on a pallet weeks later, so the questions that matter are who you are paying, what exactly arrives, who moves it from the kerb and what happens if a part is missing.

Could you hold a 6 m sheet of polycarbonate over a steel arch while someone screws it down? That is the hardest moment in building a SteelRoot Plot 3.14, and it is why the product page asks for two adults, a dry weekend and ordinary tools. The frame bolts together, the sheets screw on, and only the two end walls are cut. Here is the whole job, from the kerb to the last strip of tape.

Two beds and a working path suit most UK greenhouses. The layout maths for 2.6 m, 3.14 m and 4 m frames, bed depths and fill volumes, and why creosote sleepers stay outside.

Every greenhouse plant is watered by you, because no rain reaches it. That is the whole job of a watering system: to deliver water to the roots steadily, without wetting the leaves, on the days you are busy or away. Start with what you grow, in beds or pots, and how often you can be there; a can and a water butt cover a small house, and drip lines or capillary matting take over as it fills up.

Ventilation decides more in a UK greenhouse than heating does. Here is how much airflow you need, what roof vents, side vents and wax-cylinder auto-openers each do, and how to keep humidity and grey mould down.

A timber greenhouse can have steel at every joint. NORDIC pairs 45 × 45 mm FSC Swedish pine with 1.2 mm galvanised steel angle brackets at every node, plus screw-and-washer glazing fixings. Those are specifications you can check before ordering, even when a photograph tells you very little about the construction. Use the same questions to compare wooden greenhouse kits, then check the base, the assembly instructions and the care you are taking on.

Searched "Scandinavian greenhouse" or "Swedish greenhouse" and come away unsure what you are actually buying? The label points to a look and a way of thinking about cold weather, not...

Use this page for planning the site and base. For the money side, read the greenhouse installation cost guide. For the build sequence, read the weekend greenhouse assembly guide. What...

Ask "are polytunnels allowed on allotments?" in any plot-holders' forum and you will get a dozen confident answers that contradict each other. The reason runs simple. No single national rule...

If you have searched for a polycarbonate polytunnel in the UK, you probably want the long walk-through shape of a tunnel without the polythene film that goes baggy, tears and...