Greenhouse Stores Blog

Fruit to Grow in a Greenhouse UK: 12 Crops, Ranked

Matt W · 12th Jun 2026

Twelve fruits thrive in a UK greenhouse and eight need no heater at all. Installer-measured temperatures, a difficulty table and advice on the right house for figs, grapes, citrus and melons.

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Early Crops Under Glass: Steal a Six-Week Head Start

Matt W · 10th Jun 2026

Beetroot, carrots, peas, broad beans and spring onions all crop 4-6 weeks earlier when started under glass. Our installers share the exact UK sowing calendar they use, plus the cold frame kit that makes it work.

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How to Harden Off Seedlings: UK Timing & Step-by-Step Method

Matt W · 10th Jun 2026

Hardening off acclimatises indoor seedlings to outdoor life over 7 to 14 days. Skip it and tender plants die fast. Our UK schedule, cold frame method and frost-watch tips, from installers with 16 years on site.

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Why Do Plants Grow Faster in a Greenhouse? We Measured It

Matt W · 10th Jun 2026

Plants grow faster under glass thanks to trapped heat, shelter and a longer season. We measured a 19C lift inside on a sunny April day and soil three weeks ahead of open ground. From installers with 16 years on site.

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Rainwater Harvesting for Greenhouses: Butts & Diverters

Matt W · 9th Jun 2026

Why rainwater beats tap for seedlings and ericaceous plants, how to size a water butt to your greenhouse roof, and how to fit a diverter in under an hour. From installers with 16 years on site.

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Year-Round Salad Growing in a Greenhouse: UK Guide

Matt W · 8th Jun 2026

Pick fresh salad leaves every month in a UK greenhouse. Matt shares a month-by-month sowing calendar, the hardiest winter leaves, successive sowing and cut-and-come-again tips from 16 years growing under glass.

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25 Greenhouse Ideas, Uses & Designs UK: From Balcony to Walk-in

Matt W · 8th Jun 2026

Twenty-five greenhouse ideas for UK gardens, from a balcony mini to a walk-in Victorian. Shaped by 14 years of real installs, with a frame to match every space and budget.

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Wooden Greenhouse Guide UK: ThermoWood, Timber & Maintenance

Matt W · 3rd Jun 2026

After 16 years fitting Swallow wooden greenhouses, we compare ThermoWood with softwood, set out real fitted costs, the yearly maintenance job and the five models we install most across UK gardens.

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June Gardening Jobs UK: 12 Tasks From Expert Greenhouse Installers

Matt W · 1st Jun 2026

June is the first real harvest month and peak watering season in UK gardens. We cover daily greenhouse watering, side-vent fitting for cross-flow airflow, aphid control and what to sow now for a late-summer harvest.

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Greenhouse Combi Sheds UK: Half Greenhouse, Half Storage Buyer's Guide

Matt W · 27th May 2026

Greenhouse combi sheds give you a shed and a greenhouse in one footprint. Our UK installers compare 5 Swallow ThermoWood models from £4,082 - which one fits your garden best, with free delivery and fitting included.

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Your First Year With a Greenhouse: A UK Month-by-Month Beginner's Diary (From a 16-Year Installer)

Matt W · 22nd May 2026

What does the first year with a greenhouse really look like? A UK month-by-month diary from a 16-year installer — what to sow in January, when to harden off, how to over-winter, and the five rookie mistakes that quietly cost beginners a season.

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Greenhouses for High Wind & Snow Load UK: Best Frames for Scotland, Wales & Exposed Coasts

Matt W · 19th May 2026

Which greenhouse survives a Scottish Highland winter? Two ranges come back to us a decade later with no failures: the Elite Titan 1000 heavy-gauge aluminium range and the Swallow wooden range in thermo wood. UK wind zones, frame gauge, anchoring, glazing, snow load, plus a 10-point site survey checklist for exposed plots.

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Vertical Greenhouse Gardening UK: How to Grow Up, Not Out (Installer's Guide)

Matt W · 19th May 2026

Vertical greenhouse gardening turns a 4.5m² floor footprint into roughly 13m² of usable growing area by stacking four zones — floor, staging, climbing, and apex. From UK installers with 16 years on site. Two-tier staging, vertical strings, and apex hanging baskets for under £150 of kit.

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Greenhouse Roof Shapes UK: Apex, Lean-To, Orangery, Dwarf Wall & Combi Compared by Installers

Matt W · 19th May 2026

Five UK greenhouse roof shapes compared by installers: apex (gable), curved-eaves, lean-to, orangery lantern, dwarf-wall and combi greenhouse-shed. Real prices, heat retention data, decision tree, plus the four shapes we deliberately do not stock and the honest reasons why.

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Pest Repelling Plants for UK Greenhouses: Research-Backed Companion Pairs

Matt W · 18th May 2026

Which pest repelling plants actually work in a UK greenhouse? French marigolds cut whitefly by ~38%, tagetes suppress root-knot nematodes, nasturtiums trap aphids. We cover the science-backed seven plus the myths most blogs repeat without evidence.

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Coffee Grounds in the UK Garden: What Actually Works (and What Doesn't)

Matt W · 15th May 2026

Are coffee grounds good for plants? After 16 years installing greenhouses and watching customers experiment, we cover fresh vs used grounds, the slug deterrent myth, the compost activator role, and which UK crops actually benefit from a mulch.

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Twin-Wall vs Single-Wall Polycarbonate Greenhouse UK: Installer Comparison

Matt W · 14th May 2026

Twin-wall or single-wall polycarbonate? After fitting both for 16 years, we compare U-values, light transmission, hail resistance and lifespan — plus when single-wall makes sense and which UK greenhouses to buy at each spec.

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How to Build a Brick Plinth for a Greenhouse: 7 Steps from UK Installers

Matt W · 13th May 2026

How to build a single-course brick plinth for a greenhouse - trench dimensions, concrete mix, mortar ratio, squaring formula, and the interior floor setup we use on every install. From the team that has fitted greenhouses across the UK since 2009.

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Auto Vent Opener Installation UK: How to Fit and Adjust

Matt W · 13th May 2026

Step-by-step guide to fitting an automatic greenhouse vent opener: 5-minute install, brand comparison (Bayliss MK7 vs XL vs Vitavia), temperature adjustment, and the three fitting mistakes that wreck openers in the first season. From installers with 16 years experience.

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Wireworm Damage in UK Gardens: Spot It, Stop It, Beat It

Matt W · 12th May 2026

Wireworm UK guide - identification, the 3-5 year click beetle life cycle, damage thresholds, and six control methods that actually work (potato traps, winter digging, brassica rotation). From installers with 16 years experience.

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Black Bean Aphid: How to Spot, Stop and Save Your Crops

Matt W · 12th May 2026

Black bean aphid identification and control UK guide - the matte-black aphids on broad beans, damage thresholds, the pinch-and-hose technique, biological control and companion planting. From installers with 16 years experience.

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Homemade Pesticides UK: 7 Recipes That Work (And the Law)

Matt W · 12th May 2026

Homemade pesticides UK - 7 tested recipes, what's legal under HSE rules, the law you need to know, and the cultural practices that mean fewer sprays in the first place. From installers with 16 years experience.

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Garden Room Planning Permission UK 2026: Need It Or Not?

Matt W · 12th May 2026

Garden room planning permission UK 2026 - permitted development rules, the 2-metre boundary trap, building regs thresholds, costs, and a head-to-head of England/Scotland/Wales/NI rules. Plus 8 UK garden rooms and greenhouses we install. From installers with 16 years experience.

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Seed Germination Temperatures: The Complete UK Reference Table

Matt W · 12th May 2026

The complete UK reference for seed germination temperatures - 40 crops tabled with min/optimal/max ranges, days to emerge, and sowing notes. From installers with 16 years experience.

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