Hartley Magazine

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

Written in United States

Growing Organic Fruits and Vegetables Year-Round

Have you noticed that produce has become more expensive in supermarkets lately? One reason is the cost of transporting fruits and vegetables from the southern hemisphere, another is unfavorable recent weather in California, a major supplier of produce, and a third is a decreased number of migrant workers available for harvests. If you’re a greenhouse […]

Highlights of the Philadelphia Flower Show

The weather forecast was foreboding, with the third major winter storm in two weeks about to hit the northeast. But the blinding snow and lashing winds that my Amtrak train hurtled through on its way to Philadelphia belied the beautiful, springtime ambiance awaiting me inside the 2018 Philadelphia Flower Show. This premier horticultural event, presented […]

Heritage Gardens in Sandwich, MA

This spring I visited Heritage Gardens in Sandwich, Massachusetts, to see the rhododendrons in bloom. These 100 acres were formerly the estate of Charles Dexter, who, beginning in 1921, spent years propagating and raising thousands of rhododendrons.  He gave many to friends and neighbors without keeping records of these gifts, which is why new Dexter […]

Heritage Gardens in Sandwich, MA

This spring I visited Heritage Gardens in Sandwich, Massachusetts, to see the rhododendrons in bloom. These 100 acres were formerly the estate of Charles Dexter, who, beginning in 1921, spent years propagating and raising thousands of rhododendrons.  He gave many to friends and neighbors without keeping records of these gifts, which is why new Dexter […]

Heritage Gardens in Sandwich, MA

This spring I visited Heritage Gardens in Sandwich, Massachusetts, to see the rhododendrons in bloom. These 100 acres were formerly the estate of Charles Dexter, who, beginning in 1921, spent years propagating and raising thousands of rhododendrons.  He gave many to friends and neighbors without keeping records of these gifts, which is why new Dexter […]

Mandevilla Care

Mandevilla is a genus of flowering vines with showy, trumpet-shaped blossoms in various vibrant colors, making them highly popular for patios and decks.  In cold climates, however, they must be brought indoors for winter. Fortunately, a greenhouse is an ideal winter haven for Mandevillas as long as the temperature there stays above 50˚F. Before bringing […]

Growing Cape Primrose

Cape Primrose, or Streptocarpus, is a genus of beautiful flowering plants that contains numerous species, most of which are easily grown in a heated greenhouse. These plants superficially resemble those of the genus Primula but are not related to them. In many ways, the five-petalled Cape Primrose flowers remind me of orchids. Each has somewhat […]

Written in United States

Out-of-Season Potatoes! In Your Greenhouse

Growing potatoes in your greenhouse may not seem very exciting or even particularly worthwhile. After all, you can buy a bag of spuds for a few dollars. But imagine growing high-value fingerlings such as Russian Banana, Rose Finn, or Blossom. These can be hard to find in a grocery store, especially during winter. And they […]

Written in United States

Tomatoes 101 – Year Round Love in the Greenhouse

In northern parts of America greenhouse owners are just now starting tomato plants from seed ready for the new season. Under lights on the heat mat I have some fifteen varieties growing. These will be transplanted into larger pots until they are ready for my garden and the gardens of friends. But often tomato varieties […]

Written in United States

Late Blight in Tomatoes and Potatoes

For greenhouse owners and gardeners in the Carolinas and Georgia, here is some disturbing news: Some tomato plants in Beaufort County, South Carolina, have recently been infected with late blight disease, the same highly infectious scourge that caused the Irish potato famine in the 1840s. Tomatoes and potatoes are related species, both belonging to the […]