Excellent 
Expert Advice
Learn to be a better grower with hints and tips from the growing experts
What's Going On With Your Roots?
Roots might not be your top priority - it's the other end of plants that you care about! But, bigger roots = bigger fruit. Your final yield is directly related...
Read more
Don’t waste a Watt – Which Reflector Do You Need?
Around 50% of the light emitted by your bulb is beamed down by your reflector. It's key that you get the right one. Here's how to pick. Types of Reflector...
Read more![[Leaf Health] How to Stop Leaf Damage](http://www.growell.co.uk/cdn/shop/articles/take-a-leaf-out-of-the-growell-book---keep-your-plants-healthy.jpg?v=1673371529&width=700)
[Leaf Health] How to Stop Leaf Damage
Read our handy buying guide to work out which tent you need.
Read more
Water, Water Hardness, pH and Feeds
Not all water's created equal. Your water type has a big impact on the feed you need, and how you manage your pH. Here's what you need to know. Water...
Read more
Air - Your Grow Room's Atmosphere
What is Air? Air (or atmosphere) is the gaseous envelope that surrounds this planet. It's mostly of a mix of gases, but also contains solid and liquid particles. The two...
Read more
Rooting Around for a Booster?
Strictly speaking, you don't need a root booster. But pretty much everyone uses them, for good reason. Everyone's got their favourite rooting boosters, additives and stimulants! Here are our top picks!
Read more![[Growing in Soil] Get Your Hands Dirty](http://www.growell.co.uk/cdn/shop/articles/getting-your-hands-dirty---growing-in-soil_1.jpg?v=1673371542&width=700)
[Growing in Soil] Get Your Hands Dirty
Soil's one of the most forgiving medias there is. You don't have to tweak your pH Roots are insulated and protected from the cold The right soil already contains microbes...
Read more
Building Your First Indoor Grow Room Setup
OK, you’re convinced. You want to set up a grow room and raise plants indoors…but where do you start? If you’re new to this, stick to the basics and keep things simple....
Read more