LATE SPRING BLOOMERS for MN: Perennials

Max Frei cranesbill  Geranium sanguineum ‘Max Frei’ Height: 8 inches Spread: 12 inches Flower Color and Season: Fuchsia late spring to early summer Foliage: dark green. Red in fall

Tiarella spring symphony Spring Symphony Tiarella Slightly fragranced, pink flowers Height: 6″ Spread: 8-10″ Dark green foliage, mounded shape with flowers that bloom in May-July. Shade-loving plant that is great as a groundcover or as a border/edger

Blue star amsonia  Amsonia tabernaemontana Height: 24 inches Spread: 36 inches Flower Color and Season: Blue late spring to early summer Foliage: light green. Yellow in fall

Gold Dicentra Bleeding Heart! Aren’t these flowers sweet?! These perennial shrubs generally grown 24-30” x 18-30”, depending on the variety, and bloom in the spring-early summer. This is a low-maintenance, partial sun or shade shrub that is considered a cottage garden classic! FUN FACT: Depending on where you’re from, this shrub known as either a Bleeding Heart or Lady in the Bath! Lady in the Bath?! Yes!! Because if you turn the flowers upside down, that’s just what they look like

Peony – These flowers are just breathtaking! Blooming in late spring to early summer, peonies have 6 flower types, 4 colors, and varying fragrance levels, so there is sure to be a variety that would work in your landscape! Peonies prefer a sunny spot with well-drained soil but are a perfect choice for a Minnesota garden because the cold winters are the perfect chill needed for bud formation. FUN FACT: In Greek mythology, Paeon, a student of the god of medicine and healing, was saved by Zeus from his mentor’s jealous wrath by being turned into a flower, the Peony!

[]Columbine  The resilient columbine grows best in full sun or light shade, with moist, fertile soil. The flower has a deep history in many cultures, and for many centuries, Christians believed that the columbine represented seven gifts of the Holy Spirit, including: wisdom, intellect, reverence or piety, strength, advise, knowledge and fear of God. FUN FACT: The root of the name columbine, columba, is Latin and means dove. But the columbine’s true Latin name is Aquilegia which translates to mean eagle. It was so named because the spurs of this flower reminded some observers of the the talons of an eagle. How neat is that? That’s pretty neat!

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Planting Harsh Sites- BLACK WALNUT TOXICITY

Living with Black Walnut Trees

When dealing with mature trees many times we just think about the shade factor and if the tree has dense or dappled areas under it. Also root competition comes to mind as well as dry ground from rain being caught in the canopy before it can get to the soil. But some trees emit substances that can negatively affect near by plants and Black Walnut is one of the most notorious for harming it’s neighbors.

As a popular choice for shade canopy, Black Walnut is also grown for its lumber production and dye properties in its ‘fruits’. The concern lies in the production of Juglone which is in the roots, leaves, nut husks and even carried by water dripping of its leaves during rain. Areas effected by a tree go well beyond the canopy through the root structure and may effect nearby roots as far as ½” away.

The only real solution to black walnut toxicity is to install tolerant plants. Fortunately there a few plants that show little or no effect in relation to Juglone toxins. Many symptoms are a mimic of diseases or physiological disorders so look up before diagnosing a plant. Even cutting the tree won’t solve the problem since the roots still contain the chemical.

Plants to steer clear of are: Nightshade (tomatoes, peppers etc), yews, Pines, Azalea, Potentilla, Hydrangeas and lilacs. Some resistant to Juglone include: Cherry, Crabapple, maples, dogwoods, carrots, onions, snap beans, arbor vitae and daylilies. Checkout the Morton Arboretum  for a comprehensive list of plants.

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