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Blue Flowers | 5 Popular Varieties for the Garden

Blue Flowers | 5 Popular Varieties for the Garden
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Believe it or not, it’s time to start planning summer flower gardens. When thinking about colors, consider blue—one of the most sought after colors for flowers in gardens. Why are blue flowers so popular? Part of their appeal may be that it’s a rare hue to find in plants naturally.  And while very few native blue flowers can be found in New England, gardeners have introduced non-native blue flowers and flowering shrubs to their gardens over the years to add allure and to balance out common colors in their garden scheme. Here are 5 blue flowers to imbue your garden with a sense of cheer reminiscent of a bright and clear summer sky.

blue hydrangea hedgeBlue Hydrangea
These large showy blooms make for great floral arrangements and are a fun and easy flower to dry. The color of the hydrangea flower is determined by the PH level of the soil in which it grows. Aluminum needs to be present in the soil for it to be acidic enough to produce blue blooms. Adding pine needles or crushed egg shells to the soil can increase the intensity of the blue color in a hydrangea’s blossoms. If the soil is naturally acidic, nothing needs to be added. PH test kits can be purchased at greenhouses.

Also known as Quaker Ladies, these tiny low-growing wildflowers appear in delicate clusters.  Each flower in the cluster has four light blue and white pin wheel style petals, usually with a sunny yellow center. Popular in the May baskets of yester- year, these beauties are one of the first wildflowers to show in spring.

Although there are many species of forget-me-nots, the common garden variety resembles the bluet, right down to the sunny yellow center; however, they are larger in size and darker blue with five petals rather than four. Forget-me-nots also grow in clusters that do best in moist surroundings and can tolerate partial sun and shady conditions in the garden.

Blue Iris
These perennial flowers spread fast and are easy to care for. Once planted, they will begin growing and multiplying each year, putting on a stunning show with their vivid hues. Dividing the blue iris bed every few years is recommended to maintain a healthy plot. Share your thinned out blue iris plants with your true blue friends!

Great for window boxes and hanging planters, these small blue flowering plants will grow to spill out of baskets in charming disarray. Well-draining soil and partial sunlight will help these flowers to grow their best. They are also known to attract butterflies!

Shelley Wigglesworth


Shelley Wigglesworth


Shelley Fleming-Wigglesworth is a certified Maine Master Gardener and award winning newspaper columnist from Kennebunk, Maine. She has been writing for the York County Coast Star for more than a decade as a freelance columnist and features writer. In 2010 she began writing her own gardening column “The Master Gardener’s Notebook” for Tourist News. She also teaches gardening classes at local schools and colleges
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2 Responses to Blue Flowers | 5 Popular Varieties for the Garden

  1. May 10, 2014 at 9:52 am #

    Would a variegated willow tree choke a 2 year old hydrandea?

  2. Shelley Wigglesworth May 13, 2014 at 10:19 am #

    Thank you for your question. Most willow species have invasive root systems and eventually can cause destruction to other plantings in addition to septic systems and foundations. Even though it may take some time for the root system to get to the hydrangea it would be better suited if planted in an area where willows are not in close proximity. Happy planting!

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