Hartley Magazine

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

Growing Vegetables in a Winter Greenhouse

With the cost of produce steadily rising, greenhouse owners may want to try growing their own vegetables this winter. Quite a few plants will continue growing in cool conditions as long as they don’t freeze. The minimum temperature in your greenhouse should be somewhere above 40°F during the night and on cloudy days, although at […]

Keeping Mandevilla in Your Greenhouse

Mandevilla, with their numerous, large, brilliantly colored flowers, are highly prized for the tropical look they give to summertime decks and patios. Knowing that these plants originate from South America, mostly Brazil, gives a clue to the conditions they prefer – warm temperatures and plenty of sunshine. In general, mandevilla need at least six or […]

Growing Dahlias in Your Greenhouse

Dahlias come in many colors, shapes, and sizes, which is a major reason for their popularity. If you’re a fan of huge flowers, you can grow dinner-plate variety dahlias, with blooms up to a foot across. If compact blooms are your preference, you can grow small, pompom dahlias with tight flowers balls only about two […]

A Country Garden Starts in the Greenhouse

A month or two ago, I was watching an English whodunnit and was impressed by the country gardens where the story took place, so I decided that this year I would expand my English country-style flower garden. I purchased seeds for hollyhocks, cleome, rudbeckia, coreopsis, primrose, and columbine and planted them in my basement germination […]

Seed Starting in a Small Greenhouse

At this time of year, many greenhouse owners are getting ready to start seeds. I find that pepper seeds take up to three weeks to germinate, so I usually start them first, followed by eggplants, tomatoes, and flowers. However, there’s a problem starting heat-loving plants in a small greenhouse in late winter. The seeds of […]