Bloom Report (Updated Aug. 17) - Enjoy the robust blooms of August.  Check out the roses and dahlias, all blooming nicely. In the Perennial Garden, the phlox, waterlilies and gray-headed coneflowers are highlights. The prairie garden is bursting with color - the purple and blue spikes of the anise hyssop and hoary vervain, the whites of the flowering spurge. The flamboyant orange canna lilies, found in several gardens, are not to be missed! The entry and gatehouse gardens are a riot of warm, bright hues. Also noteworthy: the gardens fronting the Oswald Visitor Center and Snyder Building, and the MacMillan Terrace Garden, sensory garden, annual and home demo gardens.

All photos by Arboretum volunteer Dave Poplau unless otherwise specified.

Campanula
Astilbe
Dianthus by Dave Poplau

Campanula/Harebell

Astilbe/Astilbe
Dianthus
Mint
Orange Daylily
Marigold
Agastache Rugosa/Korean Mint

Hemerocallis/Daylily

Tagetes/Marigold

Asiatic Lily
Balloon Flower
Persicaria
Lilium/Asiatic Lily
Platycodon Grandiflorus/Balloon Flower Persicaria Polymorphos/Persicaria
 Rugosa Rose
 Meadow Sage  Prairie Rose
Rosa/Hybrid Rugosa Rose
Salvia Nemorosa/Meadow Sage

Rosa/Prairie Rose Shrub Rose

 Garden Rose
 Rudbeckia
 Periwinkle
Rosa/Garden Rose Rudbeckia/Black Eyed Susan
Catharanthus/Periwinkle
Bellflower
 Bloody Cranesbill
 Yucca
Bellflower
Cranes Bill
Prickly Pear
Thistle
 Clustered Bellflower
Clematis
Echinops Ritro/Globe Thistle
Clustered Bellflower
Clematis
Coral Bells
Daisy
Hosta
Coral Bells
Daisies
Hosta/Plantain Lily
     
Snapdragon
Sneezeweed
Allysum
 Antirrhynum Majus/Snapdragon
Helenium Amarum/Sneezeweed
Lobulara Maritima/Sweet Allysum
Chamomile  Petunia  Phlox
Ratricaria Mecutita/German Chamomile  Petunia/Petunia  Phlox Maculata/Meadow Phlox
Zinnias
 Yarrow  Coneflower

Zinnia/Zinnia

Achillea Millefolium/Yarrow

 Echinacea/Coneflower
 Verbena  Hydrangea
 Allium
Verbena/Verbena Hydrangea/Hydrangea
 Allium/Allium
Angelonia Begonia Coreopsis
Angelonia/Angelonia Begonia/Begonia Coreopsis/Coreopsis
Globe Amaranth Hybrid Dianthus Potentilla
Gomphrena Haageana/Globe Amaranth
Hybrid Dianthus/Hybrid Dianthus
Potentilla/Potentilla

 

 

 

 

 

 

 


Guide to Plants in Full Bloom and Where to Find Them  - 

Week of Aug. 10

Anise Hyssop (Agastache foeniculum) bee friendly, crushed leaves smell of licorice, native to Minnesota. (minnesotawildflowers.info)

Location at Arboretum: Prairie Garden, Iris Pond

Flowering Spurge (Euphorbia corollata) native to Minnesota, poisonous - sap causes skin irritation. (minnesotawildflowers.info)

Location at Arboretum: Prairie Garden, Iris Pond

Wild Quinine (Parthenium integrifolium) resistant to insects and diseases, listed as an endangered species in 1984, native to southeastern parts of Minnesota. (minnesotawildflowers.info)

Location at Arboretum: Prairie Garden, Iris Pond

Gray-headed Coneflower (Ratibida pinnata) native to Minnesota, attractive to birds and butterflies, root was used to treat toothaches. (morningskygreenery.com)

Location at Arboretum: Prairie Garden, Iris Pond, Slade Perennial Garden

Hoary Vervain (Verbena stricta) tea from leaves was used to treat stomach aches, Native Americans made flower from roasted seeds, good for prairie restoration projects - easy to grow almost anywhere, native to Minnesota. (morningskygreenery.com)

Location at Arboretum: Prairie Garden, Iris Pond

Waterlily (Nymphaea) young leaves and unopened flowers can be boiled and eaten as vegetables, seeds can be ground into flower, flowers are entomophilous - pollinated by insects, usually beetles. (Wikipedia)

Location at Arboretum: Slade Perennial Garden Fountain

Researched and compiled by Rebecca Splichal, student intern

 

Week of August 3

Garden Phlox (Phlox paniculata) blooms for 6+ weeks, often used as background plants, pinch back before bloom to get fuller plants with more flowers. (University of Minnesota Extension)

Location at Arboretum: Spiegel Garden, Visitor Center Terrace, Terrace Garden, Slade Perennial Garden, Cloistered Herb Garden, Fragrant Herb Garden, Naturalistic Garden, Sensory Garden

Gayflower (Liatris spicata) prairie wildflowers, no fertilizing required, easy to grow, fall division every 2-3 years. (gardeningknowhow.com)

Location at Arboretum: Terrace Garden, Purple Garden (West entrance to Oswald Visitor Center), Sensory Garden, Prairie Garden

Joe-pye Weed (Eupatorium) drought tolerant, deer resistant, attracts birds, low-maintenance. (bhg.com)

Location at Arboretum: Spiegel Garden, Slade Perennial Garden, Purple Garden (West entrance to Oswald Visitor Center), Naturalistic Garden, Sensory Garden

Annuals (Annual season is at its best!) known for their stunning displays, can bloom all summer long (some require dead-heading), can change design every year for variety. (finegardening.com)

Location at Arboretum: Front and Back Terraces of Snyder Building, Front Terrace of Oswald Visitor Center, Annual Garden, Home Demo Garden (Vegetables in particular), Sensory Garden

Hollyhock (Alcea rosoa) easy to grow from seed and easily reseed, attracts hummingbirds and butterflies, can be used as a moisturizer or laxative. (Wikipedia)

Location at Arboretum: Cloistered Herb Garden

Amur Maple Tree (Acer ginnala ‘Embers') beautiful fall color, tolerates shade, tolerates alkaline soils. (University of Arkansas Extension)

Location at Arboretum: Maple Collection

 

Week of July 20

Daylilies (Hemerocallis) require little to no care, adaptable to most soils, many varieties and flower colors to choose from. (University of Minnesota Extension) *Most beautiful in the early morning, before the heat of the day*

Location at Arboretum: Daylily Collection, Home Demonstration Gardens, Sensory Gardens

Asiatic Lily (Lilium candidum) easy to grow perennial, very hardy, require no staking, thrive in many types of soil. (University of Minnesota Extension)

Location at Arboretum: Asiatic Lily Collection, Sensory Garden

Hydrangea Tree (Hydrangea paniculata) easy to grow, grows well in well-drained areas, many varieties and colors available. (hydrangeatree.net)

Location at Arboretum: Spiegel Garden, The Dahlberg Welcome Terrace, Garden for Small Spaces in Home Demonstration Area

Yarrow (Achillea millefolium) can help break a fever and fight cold and flu, lowers blood pressure, used in herbal cosmetics, fragrant. (gardenguides.com)

Location at Arboretum: Naturalistic Garden, Slade Perennial Garden, Visitor Center Circle

Bee Balm (Monarda) divide every 3 years to prevent spreading, deer resistant, attractive to bees. (thegardenhelper.com)

Location at Arboretum: Slade Perennial Garden, Naturalistic Garden

Sumac (Rhus) beautiful red coloring in fall, there are native varieties to MN, considered small tree or large shrub. (landscaping.about.com)

Location at Arboretum: Elm and Honey locust Collection