After that, depending on the weather and soil type, watering may be adjusted to every two or three days. If the garden area is large, and a sprinkler is necessary, try to water in the morning so that plant foliage has time to dry through the day. It produces spikes of blue flowers on plants growing 9 to 12 inches tall and blooms from June through August. Add organic matter such … Their fragrance is notably different: sage has a strong herbal scent, while lavender smells more like perfume. Blue Flower Tip: Bigleaf hydrangeas … Even gardeners facing deer pressure can grow this perennial. Blue False Indigo: These Ontario native plants are part of the pea family, so their blossoms look like those you’d see on your typical pea shoot, but instead are a stunning purple-blue jewel tone. Shadowland® ‘Waterslide’ (left) and ‘Diamond Lake’ (right) Hosta, With the new addition of ‘Diamond Lake’, we now have two outstanding blue hostas in the Proven Winners lineup. Hardy in zones 3-7, full sun to part shade, 3’ tall, 5. Grows in zones 3-9. Tip: It's easier to control pH levels in a pot, so consider planting your hydrangeas … Lavender offers many of the same benefits as Russian sage—sun and drought tolerance, deer resistance, and attractiveness to pollinators. Welcome to Bluestone Perennials We’re a second generation, family owned and operated perennial nursery since 1972. Its flowers appear for many weeks beginning in early summer, attracting pollinating bees, butterflies and hummingbirds to the garden. To keep your petals blue, aim for a pH of about 5.2 to 5.5. The following list of perennial flowers will help you choose just which permanent plants you want to invite into your garden to stay. All Rights Reserved. It blooms in the summer season forming large clusters of blue flowers which makes it a perfect addition to a garden which has spring bulbs and wants to continue blooming after they dry. This award-winning vining clematis is super easy to grow and blooms reliably every year on both old and new wood. Expect to see some sporadic rebloom in late summer. Once plants have died to the ground they are easy to clean up by simply cutting back to about 4” (10cm) above the ground. Clusters of periwinkle blue, star-shaped flowers top this easy to grow, native perennial cultivar every year in late spring to early summer. Hardy in zones 5-9, full sun to part shade, 4-7’ tall, 6. Here are ten we think are definitely worth finding a place for in your landscape. Clusters of periwinkle blue, star-shaped flowers top this easy to grow, A perfect perennial for Canadian gardens, Buddleia (also known by the nickmane “butterfly bush”) will thrive if planted in a sunny spot. Snapdragon-like blooms from early to mid Summer. Hardy in zones 4-9, full sun to light shade, 2 ½-3’ tall, deer resistant, 4. Its deep blue flowers are highlighted by a large white eye. Perennials are herbaceous (non-woody) plants that die to the ground each winter and grow anew from the roots each spring. As an added bonus, this particular variety emerges from the ground in spring with stormy purplish black stems. Get your bigleaf hydrangeas to turn clear, sky blue by increasing the acidity of the soil. Determine which application method is best for the situation and select a product with a nutritional balance designed to encourage blooming (such as 5-10-5). These blue flowers are also fantastic for attracting bees and butterflies. Firm the soil down around the plant by hand, tamping with the flat side of a small trowel, or even by pressing down on the soil by foot. ‘Stand by Me’ Clematis (Bush Clematis). Other cultivars grow as high as 3 feet. Pincushion flower (scabiosa). It blooms from May to August, in part shade or shade, and requires only a well-drained soil. Perennials should be dug up and divided every 3-4 years. They both thrive on neglect and are perfect for busy gardeners who have little time to be fussing over their plants. Hardy in zones 5-9, full sun, 12-18” tall, deer and rabbit resistant, 9. To remove the plant from the container, gently brace the base of the plant, tip it sideways and tap the outside of the pot to loosen. Removing old flower stems keeps the plant’s energy focused on vigorous growth instead of seed production. Leave the entire plant for the winter and cut it back to the ground in early spring, just before new growth starts. 3 ½ out of 5.The variety Butterfly Blue was the perennial plant of the year in 2000 and butterflies do love it. Prepare the garden by breaking up the existing soil (use a hoe, spade, or power tiller) to a depth of 12-16” (30-40cm). Thanks to the effect of the Great Lakes, Ontario, Canada gardens experience warm, humid summer weather and cold winters with heavy snowfall. Foliage is deep-green, fine and linear. They just opened up a newly constructed greenhouse in St. Catharines last…. Pruning stimulates tender new growth that will damage easily when the first frosts arrive. If icy blue fits your color scheme best, choose ‘Crystal Blue’. Perennials can be planted anytime from spring through fall. Color Spires salvias are particularly prolific, blooming heavily in late spring and reblooming sporadically through the growing season. Despite their larger size, Blue Oat Grass plants are ideal as rock garden perennials, in desert gardens, and shine with brilliant blue accents along pool edges. Perennials in bloom month by month. Depending on the flowering habit, snip off faded blooms individually, or wait until the blooming period is over and remove entire flower stalk down to the base of the plant. Reduce the need to fertilize in general by applying a 1-2” (3-5cm) layer of mulch or compost annually. Perfectly suited to informal, naturalized settings. They won’t find its fuzzy, fragrant foliage so tasty, but bees, butterflies and hummingbirds will adore its blossoms. Bees and hummingbirds are attracted to the deep red stamens in the center of each blossom. Push the soil gently around the roots filling in empty space around the root ball. Find locations near you that offer Proven Winners products. A number of perennials … Some colors can be found in abundance in the landscape, but blue often isn’t one of them. Moist foliage encourages disease and mold that can weaken or damage plants. Dig the hole up to two times larger than the root ball and deep enough that the plant will be at the same level in the ground as the soil level in the container. You might say this one is a little more purple than blue, but we couldn’t pass up a chance to tell you about one of the very best perennials in our lineup. Flowers & Fruit: Flowers numerous in 1-sided, short, arching branches near the top of the stem; petals bright blue, forming an irregular corolla with the upper lobes longer than the lower ones and 4 of the 5 … A soaker hose is a great investment for keeping plants healthy and reducing water lost through evaporation. Vining plants require vertical space to grow, so provide a trellis, fence, wall or other structure that allows the plant to grow freely and spread. The Iris features lovely , colorful petals … Buds are yellow which open to sky blue flowers that mature to hues of blue, violet, and purple. Iris. A splendid choice for adding soft texture to the landscape. Magic Show® ‘Wizard of Ahhs’ Veronica (Spike Speedwell). When planning your perennial garden, keep in mind the fact that some of these plants … That means flowering perennials need to thrive in the moist, sunny climate while being hardy enough to survive winter. Its taller, bushy habit makes it ideal for filling space in the middle of the border where it will need little more than sunshine and occasional water during dry spells to flourish. ‘Denim ‘n Lace’ Perovskia (Russian Sage). Clay soils hold moisture longer than sandy soils, so expect to water more frequently in sandy settings. Set the plant in the hole. Find out where you fall in the USDA Hardiness Zones database. The beautiful perennials below will add dynamic blue … Prepare the garden by breaking up the existing soil (use a hoe, spade, or power tiller) to a depth of 12-16” (30-40cm). There are plenty of rich violet blue flowers to harvest from Sweet Romance all season long. Do not prune plants after September 1st. Be inspired with our Gardener's Idea Book and Winner's Circle® newsletter, Top 10 Blue Perennials for Dreamy Gardens. Its fragrant foliage keeps deer away, but pollinating bees and hummingbirds will always find this plant when it’s in bloom. These include some of the most beloved garden favorites of all time, including azaleas, roses, hibiscus, honeysuckle, peonies, and many more. Try growing ‘Still Waters’ up through an airy, dark foliage shrub like Black Lace® elderberry or up a trellis on a dark wall for maximum effect. Thoroughly soaking the ground up to 8” (20 cm) every few days is better than watering a little bit daily. Hardy in zones 4-8, full sun to light shade, 14-16” tall, deer resistant, 10. Like a patch of violet blue paintbrushes standing ready to color your garden, this ahh-mazing new spike speedwell is incredibly floriferous. Kathy is an avid gardener who loves to grow perennials and vegetables in her zone 5 Ontario gardens. It is an ideal … Check the plant label for suggested spacing and the mature height of the plant. Blue is a soothing color that evokes a feeling of calm, tranquility and elegance when added to any garden. Perennial tickseed self-sows, enabling it to naturalize with vigor. If you're not from Ontario, don't go away! Excellent for borders, rock gardens, or mass plantings. Each perennial … Hardy in zones 4-9, full sun to part shade, 2-2 ½’ tall, deer resistant, 2. Heritage Perennials® are only sold through independent, top-quality garden centers throughout Canada and in many US states, from New England to the Pacific Northwest. Avoid applying fertilizer late in the growing season. Perennials, like roses and peonies, are the investment pieces of the plant kingdom, but that doesn’t mean they don’t require plenty of care. This is especially important if the roots are dense and have filled up the container. It’s best to install cages early in the spring, or at planting time, before the foliage gets bushy. A list of perennial flowers from A to Z for your garden. Welcome to the Ontario Wildflowers website Your "online field guide" to Ontario's wildflowers. First came ‘Waterslide’, a remarkably distinctive, medium-sized, light silvery blue hosta with long, somewhat narrow, rippled leaves. This award-winning vining clematis is named after world-renowned clematis breeder Brother Stefan Franczak of Warsaw, Poland, so you know it must be pretty amazing. Its beautiful blue color and size make it the perfect … It has beautiful blue-green lacy foliage with pink flowers. Rotate the container and continue to tap, loosening the soil until the plant pulls smoothly from the pot. This stimulates new growth that can be easily damaged by early frosts. Like clockwork, perennial flowers and plants pop up every blooming season with fresh buds, refreshed colors, and bold aromas. Hardy to zone 2. Makes a dependable mixed border plant. Large, ruffled blossoms appear on both old and new wood from early summer to late summer. The new ‘Diamond Lake’ is a larger variety with broad heart-shaped, heavily corrugated leaves and light ocean blue coloring. If … Perennials are relatively easy plants to grow, given the right location and proper care. Additional flowers appear on the new growth as the plant matures through the growing season. Allow soil to dry between thorough waterings. One of the few true-blue flowers, hydrangeas can change color based on the pH level of their soil. To check for soil moisture, use your finger or a small trowel to dig in and examine the soil. One of the most durable, long-lived perennials for the landscape is Baptisia, commonly known as false indigo. New plantings should be watered daily for a couple of weeks. Perennial plants reward you with flowers every year. Still Waters™ Clematis (Vining Clematis). A big, sky blue hydrangea flower is absolutely breathtaking. Low maintenance perennials with beautiful flowers include coneflowers, hydrangea, irises, peonies and day lilies.. ... You can also grow pink or blue hydrangeas. 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