The best time for pruning azaleas is shortly after they finish blooming in the spring but before they begin to set buds in the summer. When you fertilize azaleas is less important than pruning timing. If you need to fertilize again, do so before August, as Encore Azaleas are sensitive to heavy fertilization. Cut these branches back by a third to a half. There are two pruning techniques used for azaleas… Log in. Once the azalea has flowered in spring, it will begin to grow new foliage; flower buds set a few months later. A general rule of thumb is to fertilize in early spring before flowering and again in later spring after flowering. In order to understand the maintenance requirements of an azalea, you need to understand how and when they grow. Avoid fertilizing plants stressed by drought during the summer months. Fertilize only when the plants show signs of needing fertilizer for azalea. Azalea: Light pruning(12 inches or less) after flowering but not after July 10th (Early spring – February – and autumn pruning removes next year’s blossoms). How To Plant, Prune, Fertilizer, Water, Grow And Care For Native Azaleas And Deciduous Rhododendrons Posted by Brent Wilson on 8/18/2016 to Fertilizing & Watering Tips A little good advice goes a long way when it comes to success with growing the beautiful deciduous rhododendrons, commonly called native azaleas by many gardeners. Brian Schiffer has been active in the landscape and nursery industry for over 15 years and has been writing home gardening newsletters in the Portland Metro area for over a decade. Learn which plants thrive in your Hardiness Zone with our new interactive map! This is simply a guideline, however, as fertilizer timing is not crucial. The exact time varies depending on weather and climate; however, you generally run the risk of affecting bud growth by early July. Azaleas – When to Fertilize. A well-fed plant will grow stronger and be hardier than a plant that lacks nutrients. Follow the same timing as for normal azalea maintenance. "Greer's Guidebook to Available Rhododendrons, Third Edition"; Harold E. Greer; 1995. Don’t ever fertilize during a drought when the plant will not have access to sufficient water. In these situations, prune and feed the plant heavily in order to rejuvenate it and make it healthy again. Azalea. Plan the perfect garden with our interactive tool →, azalea rhododendron image by Canoneer from, rose flowers of an azalea after a rain image by Maxim Toporskiy from, red azalea with feather image by stresskiller from. Apply liquid fertilizer directly to foliage and roots for an additional nutrient boost. Without water, plants are unable to absorb nutrients, so it is best not to fertilize if water is unavailable. Third factor is pruning. Azaleas are types of rhododendrons people commonly plant in their yards for their spring flowers and evergreen foliage. As those products decompose, they use up the nitrogen in the soil. Click to email this to a friend (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Google+ (Opens in new window), Click to share on LinkedIn (Opens in new window), https://www.flowershopnetwork.com/blog/newsletter-may-2003/, Personalities & Flowers: The Advocate (INFJ), Decorating Your Home with Christmas Flowers, Personalities & Flowers: The Debater (ENTP). Besides degrees in landscape construction and plant propagation, he holds certifications as a nursery professional, arborist and landscape professional. In fact, they respond very well to pruning, so they're perfect for growing as hedges or trimming into standards. Trim all of the other branches on the plant as though you were shaping the plant. Azaleas require minimal care to do well, but you need to fertilize and prune occasionally to keep them looking their best. This method is used to remove leggy branches that extend beyond the canopy of the plant, remove damaged or diseased wood, or reduce the size of the plant. Thinning refers to the removal of branches back to the main trunk or another branch. Flower Shop Network is your source for finding a real local florist. Azaleas can be pruned to remove unwanted growth and diseased or damaged growth, and to shape them after flowering. Prune azaleas lightly with pruning shears after they finish blooming if you want to control their size and shape. Pruning. Fertilize once at the beginning of spring. This means removing some of the older stems to … Because they have only one flowering cycle during the year, any damage to the developing flower buds will affect next spring's flowers. Pruning too early (before flowering) will destroy the flower buds, as will pruning too late in the season. This is simply a guideline, however, as fertilizer timing is not crucial. If you are pruning an azalea in order to rejuvenate the plant because it is spindly or sparse, locate three to five of the largest branches on the azalea bush. Old and unmaintained Azaleas sometimes need a more rigorous cleanup, however. How To Plant, Prune, Fertilizer, Water, Grow And Care For Native Azaleas And Deciduous Rhododendrons Posted by Brent Wilson on 8/18/2016 to Fertilizing & Watering Tips A little good advice goes a long way when it comes to success with growing the beautiful deciduous rhododendrons, commonly called native azaleas … The important part is that you fertilize at some point during the year. If you prune your azaleas at the wrong time, you might cut the future blooms off. Signs of old age are prevalent insect and disease infestations, little to no yearly growth, poor flowering and abundant moss and lichen growth. Fertilize established azaleas in early spring and again 12 to 16 weeks later, and you'll provide the nutrients they need for the year. Like rhododendrons, azaleas begin to develop their flower buds in mid-summer for next spring's blooms. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Pruning. However, overgrown azaleas should be pruned in … The rule of thumb is to prune your azaleas immediately after they finish blooming or at least within that month. A well-fed plant will grow stronger and be hardier than a plant that lacks nutrients. Showing results 1 - 20 of 332 for fertilizing azaleas. If you use fresh sawdust or wood chips as mulch on your azaleas, you’ll probably need to fertilize the plants. Filter Results. Timing is important in azalea maintenance, as cutting them back at the wrong time of year can suppress flowering or damage the plant. You do not want to fertilize your azaleas during the dormancy period. When you fertilize azaleas is less important than pruning timing. Remove crossing or crowded side branches back to a main branch. Azalea – Pruning, Winter Care and Fertilizing. The important part is that you fertilize at some point during the year. If you want tall-growing azaleas to stay compact, prune … Removal of spent flower heads is important for promoting next years bloom as well as a good overall shape. A general rule of thumb is to fertilize in early spring before flowering and again in later spring after flowering. However, very little pruning is required. These plants should be pruned in late spring, after they have flowered. You still may notice diminished flowering the next year as the plant recovers. A general rule of thumb is to fertilize in early spring before flowering and again in later spring after flowering. The best time for pruning azaleas is shortly after they finish blooming in the spring but before they begin to set buds in the summer. Cut back azaleas during the window between flowering and bud development. Always follow label instructions and water well, no matter the brand. The secret to keeping large, growing azaleas healthy is renewal pruning every three to four years after the late winter or spring flowering. When you fertilize azaleas is less important than pruning timing. Cut away the old blooms and do not remove more than one-third of the wood. Pennington UltraGreen Azalea, Camellia & Rhododendron Plant Food 10-8-6 starts feeding right away, but it continues feeding azaleas for up to four months. There are two pruning techniques used for azaleas: thinning and heading. All Rights Reserved. In order to understand the maintenance requirements of an azalea, you need to understand how and when they grow.