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Let the Arboretum brighten up your day with a virtual or in-person tour of the Louise Muncie Roehm Greenhouse!
Fat Plants, Air Plants, and Carnivorous Plants, oh my! "Step onto my peristome," said the Pitcher Plant to the fly . . .
Built in 1997 as a reproduction of the original greenhouse, which was located in front of Wisner House, we use ...
Orchids, birds of paradise, a huge (3 feet in diameter!) water lily and a modernistic multi-level 25 foot bamboo waterfall amid a lush rain forest, await at this year’s annual Philadelphia Flower Show. Celebrating its 189th year as the country’s longest-running horticultural event, this year’s show is sure to impress with its celebration of water, entitled, “Wonders of Water.” Tropical jungles, temperate forests, native woodlands and arid landscapes will abound.
It's not the temperature, as they say: it's the obliquity. And yet, the connection with winter weather and decreasing temperatures is very real.
At this point, you may be wondering what on Earth I am writing about, and in fact, you would be very close to answering your own question. Our planet Earth is tilted, or rather, the Earth's axis of rotation is tilted with respect to the ecliptic, and the degree of tilt is referred to as obliquity. If you're wondering what that means, it means ...