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Conkers anyone?

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Conkers anyone?

Every time someone asks me "what are the shiny brown things?" that they got from the  ground underneath the Ohio buckeye (Aesculus glabra), I wonder what they did as kids in the fall.  I grew up in England where we had horse chestnuts (Aesculus hippocastanum), very similar trees but bigger and with spiny fruit casings instead of the smoother ones in the picture. The fruit inside look the same though. We...

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Beautiful, Sunny, and Temperatures in the 70's!

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That's the prediction for this weekend's Pumpkin Festival. It looks like we will have perfect weather, but we can't do it without you! We really need your help this weekend. We especially need Entrance Cashiers from 8 a.m. - 12:30 p.m. or noon - 5 p.m. on Saturday and Sunday. If you have some prior cashier experience please consider this position! There are many other positions available also such as attendance counters, beverage...

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Another Great Water Conservation gem

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Another Great Water Conservation gem

But there is much much more to savor: another large quadrangle featuring most of the Plant Select palette combined with many other perennials, grasses and annuals. The annuals had  been largely crisped by recent frosts when I visited: I was intrigued that the Octagonal xeriscape beds, however, showed hardly any frost damage: they were resplendent by contrast, showing that the watersmart style promoted by Denver Botanic Gardens is a great...

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Why do leaves change color in the Fall?

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Why do leaves change color in the Fall?

So, what causes the change in leaf color? In leaves, both the green chlorophyll and the yellow-orange carotenoid pigments occur within the chloroplasts. Since there are more chlorophyll pigments than the carotenoid pigments, the leaves appear green. In the fall, the chlorophyll pigments decompose allowing the caretenoids to express themselves as orange and yellow. In some plants, the leaf cells produce red pigments, the anthocyanins. In these leaves, once the...

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The Return of the High-Altitude Gardener

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The Return of the High-Altitude Gardener

At long last the High-Altitude Gardener has returned to the Denver Botanic Gardens Web site. This searchable online database features some of the favorite plants of the Gardens' horticulture staff that are also some of the best plants to grow in this region. You can link to the High-Altitude Gardener by clicking on one of the images above or look for it on the Gardens' Web site under Gardening Resources.

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