Hartley Magazine

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

Written in United States

Greenhouse Heating Part 3: Keeping heat inside

Heating a greenhouse can be expensive over a long, cold winter, and not just at night. Winter sunshine doesn’t provide a huge amount of heat, and the cold air outside lowers greenhouse temperatures even more. Inside my greenhouses here in New England, summer temperatures outside can easily soar to over 100˚F, but during winter the […]

Written in United States

Greenhouse Heating Part 2: Heater Choices

Having decided on the power source you want to use to heat your greenhouse (see my Greenhouse Heating, Part 1 article), you still have another major decision to make: What heating unit are you going to buy? The options are often numerous and not easy to narrow down. Here are some factors to consider as […]

Written in United States

Greenhouse Heating. Part 1: Power Source Choices

In New England, heating a greenhouse in winter makes the difference between being able to grow citrus trees or tropical herbs and flowers versus growing only plants that can tolerate cold and even an occasional freeze. For many greenhouse owners in northern climates, growing the tropical and semi-tropical options is just too tempting. This means […]

Written in United States

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 States

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. […]

Written in United States

Fertilizing Greenhouse Plants

Because potting mediums rarely provide enough nutrients for long-term growth, most greenhouse plants need fertilization. Plants three main macronutrients (those needed in relatively large amounts) are nitrogen (N), phosphorus (P), and potassium (K). On the fertilizer package, the proportion of each is given by a numerical ratio, with the order always being N to P […]

Written in United States

Fine Gardening with a Greenhouse

For many gardeners, owning a greenhouse is the epitome of fine gardening. Not only does a greenhouse enable you to cultivate plants throughout the year; it also allows you to grow plants that otherwise wouldn’t survive in your climate. Desert plants, alpine plants, rainforest tropicals, and more are all possible no matter where you live […]

Written in United States

The Potting Shed

If you own a greenhouse, where do you keep your tools and supplies, such as trowels, rakes, scoops, shears, pots, potting soil, fertilizers, pesticides, cleaning gear, and other necessities? All these things collectively take up a lot of space, especially in a small greenhouse. Clutter inside a greenhouse competes with and detracts from the plants, […]