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Gardening 101: Blue Cardinal Flower, A Statuesque Native Perennial for Late Summer

Lobelia siphilitica, Blue Cardinal Flower Blue cardinal flower, also known as great blue lobelia, is a tall native perennial that blooms for long weeks at the end of summer. Like its striking cousin, ...
The Cincinnati Enquirer

These plants are your best bets for summertime blues (in the garden)

Our landscapes all have the potential to be very colorful. You can find a plant for every color in the rainbow, and the color blue is extremely popular. This week, I would like to share with you some ...
extension.purdue.edu

Blue Roadside Flower - Chicory

Above image by Smithsonian Institution on USDA-NRCS PLANTS Database. As you travel Indiana’s backroads in July and August, you can observe what we might call one of nature’s rarities – a distinct sky ...
Penn Live

This blue African flower can survive Pennsylvania winters: George’s Plant Pick of the Week

* What it is: Lily-of-the-Nile is a tough, long-blooming, perennial blue flower that’s very common in its native South Africa and warm-weather parts of the U.S., but it’s always been just out of our ...
The Conversation

The mystery of the blue flower: nature’s rare colour owes its existence to bee vision

Adrian Dyer receives funding from The Australian Research Council. At a dinner party, or in the schoolyard, the question of favourite colour frequently results in an answer of “blue”. Why is it that ...