Cacti and succulents are plants with thick, fleshy stems and leaves that have evolved to store water in dry climates. In recent years, they have become enormously popular for house plants. You see them for sale everywhere, including most big-box stores. Some of the most common varieties are aloe plants, jade plants, sempervivum, kalanchoes, agaves, […]
It doesn’t matter whether you have a large or small, old or modern greenhouse, you will use potting soil. I use a lot of potting soil, bales of it in fact. I’m talking about real potting soil. Mixtures that are instead called “garden soil,” or something similar, are a different animal entirely. They can contain […]
For some greenhouse owners finding space for potted plants can be difficult. Shelving attached to the greenhouse structure can usually only support a few small plants. It is not recommended that you attach shelves to the structure. Many greenhouse structures are designed to support the glazing and to resist wind loads rather than carry heavy […]
There are many reasons to grow your own vegetables during the COVID-19 pandemic. It will cut down on trips to the grocery store where observing the shopping requirements can be stressful and where certain kinds of produce can often be in short supply. Plus, veggies straight from the garden are a highly nutritious, pesticide-free addition […]
Most years I go to the Philadelphia Flower Show. The show is held in March and is filled with incredible numbers of flowers. Last year, in the entry hall alone there were more than four thousand flowers, all in bloom and all on display. Considering that Philadelphia is in the northern part of the United […]
Small greenhouses – those under, say, 50 ft2 (4.65 m2) – often have great appeal because finding space for them is less of an issue. But still, even a small greenhouse can be a significant financial investment, and most gardeners want to get good value for their money. To help maximize that value, there are […]
After twenty years or so of giving talks and lectures about greenhouses and plants, I have found that there are a few questions that potential owners often ask. Probably the most common question is, ‘How large a greenhouse should I buy?’ If the questioner is an experienced gardener, my answer is, “Buy the largest greenhouse […]
Orchids are probably the largest genus of flowering plants with nearly 30,000 species. Because these plants are fairly easy to hybridize there are somewhere around 100,000 hybrids. Orchids grow almost all over the world, yes, even in the arctic circle, but mostly they grow in tropical rain forests. That said, orchids can be found in […]
When deciding where to put a greenhouse, the first question to ask is what do you plan to grow. If the answer is orchids, for example, your greenhouse should probably not be in bright sun for too many hours each day. On the other hand, if growing out-of-season vegetables is your goal, you’ll likely want […]
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 […]
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 […]
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 […]
