Nancy H. Traill A warm spring will advance the times I give, which are derived from observations over the past few years when the springs have been unusually cool. Hardy, a good-doer for many in Southern Ontario. Some hedges are purely decorative, while others serve primarily a practical function. ©2020 The Scotts Company LLC, all rights reserved. 'King's Luminous Pink'* Kinds of Evergreen Azaleas Almost all evergreen azaleas are hybrids and there are thousands of them. At its peak by the 1st of June for me, earlier if the spring is warm. 'Helen Curtis' However, I now fertilize twice a year - in the spring and early summer - with a high nitrogen fertilizer because of the greedy roots of nearby maples. (Kurume). Easy to grow, azaleas make a colorful complement to any landscape. Flame azaleas grow in U.S. Department of Agriculture plant hardiness zones 5 to 7. Chucked it. Blooms late May through June. , But I know others who have grown evergreen azaleas with fair success in Orono, Ontario (Zone 5b), and even in Zone 5a, in Orleans, near Ottawa, and within Ottawa itself (the Dominion Arboretum) in spite of severe minimum temperatures during the 1993-94 winter. Meconopsis grandis R. kaempferi Rose, semi-double. I have found it hardy and reliable, though it died on someone else in Toronto. 'I'll Be Damned'* Definitely a good-doer, leafy, unfussy, and with plant-smothering blossoms. Shade is the biggest ‘problem’ in many gardens, especially if you have mature shade trees like maple on your property. Intro: Azaleas are flowering bushes that have impressive, showy flower blooms in the summer. 'Pink Pancake' Beautiful spring gardens, small or large, can be created b… Companion plants that like the same conditions: heaths and heather, mountain laurel, leucothoe, bog rosemary, pieris, bearberry and blueberries. Or was, because I tossed it out. Dig a hole that's twice as wide as your azalea's root ball. A good location is where they receive either dappled sun all day or sun in the morning and light shade in the afternoon. Each of these conditions is important to grow Azaleas and Rhododendrons successfully. Be sure to keep the mulch 1 to 2 inches away from the base of the azalea. The area covers USDA Zones 5 to 7, with adequate to plentiful rainfall, though with occasional drought in the summer. 9.  Squirrels seem to be uninterested in their buds, which are no larger than pips throughout the winter and (so my squirrel friends tell me) about as appealing. (Girard). How to Grow and Care for Azaleas in Containers. To increase blooming in rhododendrons pinch tips of new … (Kurume). Greenhouse azaleas are those beautiful, multicolored joys of spring, those bright spots in the grocery store or garden nursery when everything else is winter gray. A good-doer. A cutting that died during the '94-'95 winter. The best time to prune azaleas is in the spring, right after they bloom. 'Dayspring' They have been neither for the plantsman in Orono, Ontario. How to Grow Azaleas: Azaleas are acid loving plants. 'Hinode Giri' Blooms mid June. In Orleans, Ontario, it survives with snow cover, as a semi-evergreen. (Glenn Dale). Spring and fall, when temperatures are cool, are excellent times. At 86°F/30°C the summer blooming 'Balsaminiflorum' and 'Tachisene'* still look fresh. You can quickly test soil pH with an inexpensive soil pH tester probe. Very low and must be covered with branches in the winter (but worth trying in areas with reliable snow cover). A bias in favour of evergreen azaleas is nothing to be ashamed of, nor is the conviction that they deserve more testing in Southern Ontario. 'Girard's Kathy'* 6.  The flowers virtually smother the plants. Best Azalea Cuttings Growing evergreen azaleas from cuttings is typically much more successful than their deciduous counterparts. Some Glenn Dale (Washington, D.C.) hybrids are also good choices, and I have great hopes so far for 'Festive', which has white flowers, striped and sectored with dull rose. A hedge is a living wall composed of plants. ). In Orono, Ontario, I am informed that the plant has survived for 15 years, but struggles. A bright red, new in my garden, but reliable for other people in Southern Ontario. The extremely deep waters of the Great Lakes, which almost entirely surround Southern Ontario, are a great climate modifier; they do not freeze in winter (except for the shallow Lake Erie) and act as heat basins, warming the surrounding land. Azaleas can also make exceptional candidates for containers. Rhododendrons and azaleas grow best in sites protected from wind, and with light With the short zone 3 growing seasons, you don’t want to waste your space on plants that need to be babied. As things are, evergreen azaleas are underused in Southern Ontario. 'Snowball'* Good places might include spots under trees, or along the north side of your house. 'Nancy of Robinhill' A bright reddish-purple, fully evergreen in Toronto. They come in many flower colors, including pink, red, white, yellow, and purple. (Domoto; old Kurume from Japan). 'Delaware Valley White' 2.  The leaves to not mildew, unlike those of deciduous azaleas. Growing rhododendrons in Southern Ontario is not impossible, but with our hot, dry summers and harsh winters, it is a challenge that is not for the faint of heart. Place it in the middle of the hole, and fill in the gap with a 50:50 mix of the soil removed from the hole and Miracle-Gro® Garden Soil for Trees & Shrubs. Instead of struggling to grow unsuitable plants it is best to concentrate instead on shrubs that naturally grow and thrive in shade. (Hager). (Gable). With thousands of varieties, there are rhododendrons and azaleas for just about every landscape situation. 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