Hartley Magazine

All the latest news, hints, tips and advice from our experts

Written in United Kingdom

Blossom end rot – problem solved.

Blossom End Rot, where the end of tomatoes becomes circular, black and flattened, occurs in peppers and aubergines, squashes and watermelons but is most often seen in tomatoes. It is caused by lack of calcium in the fruits. Plants in soil, growing bags and potting composts rarely lack a supply of calcium but what they […]

Grow Your Own Mango Plant

You can easily grow your own greenhouse mango tree. If you decide to grow a mango the first step is to find a suitable mango. Most mangoes grown in America, according to the National Mango Board (www.mango.org) are either ‘Tommy Atkins’ or ‘Palmer.’ Tommy Atkins has slightly green and orange-red skin than does Palmer, which […]

Written in United Kingdom

Go Forth and Multiply – Clematis Cuttings

One of the great things about owning a Hartley greenhouse is the sense of escape in a modern world fraught with difficulty. It’s like your own miniature TARDIS and when you walk down the garden path and through the door you’re lost in another world. It doesn’t matter about the vagaries of the British climate […]

Written in United Kingdom

Garden Rebellion

As global heating escalates, we can’t go on gardening as usual. It’s time for disruptive gardeners’ questions – and for some serious answers from our ‘experts’. ‘Thought I’d never make it!’ A middle-aged, tanned and fragrant woman slid in through the back door. ‘What’s going on out the front?’ She dabbed sweat from her forehead. ‘We’re […]

Cold Hardy Cactus: Opuntia with punch!

Part of the delight in growing hardy cactus, for me anyway, comes in not having to move pot-grown specimens into the conservatory as the temperature drops. The hardy sorts of opuntia (aka prickly pear cactus) are especially attractive and common throughout the intermountain and prairie regions of the West. Opuntia aurea, hardy from Zone 5-10, […]

Historic Gardens—What the past tells us about today—and tomorrow

I love the feeling of time travel that comes with visiting restored gardens. One of my favorites is Aspet—a garden designed around the home of artist and sculptor, Augustus Saint-Gaudens (1848-1907). The 30-acre garden and 200-acre grounds are now a National Historical Park in New Hampshire. When I visit gardens like this, one question always […]

Written in United Kingdom

Indian Shot with bright flowers

Indian Shot or Cannas are happiest in frost free greenhouses or a conservatory, they can even go outside all summer. But their lush foliage and incandescent blooms look better for longer under cover where their tropical appearance also seems more appropriate. Found in almost all frost free parts of the world the Cannas are possibly […]

Plants Need Secondary Macronutrients Too

You fill a watering can with dissolved fertilizer and start feeding your greenhouse plants. But do you know exactly what’s in the solution you’re using? Most greenhouse owners know that plants require nitrogen (N), phosphorus (P), and potassium (K). These are the primary macronutrients, the word “macro” referring to nutrients needed in relatively large amounts. […]