This will revitalize the plant. These types of hydrangeas produce flowers on older wood, so you don’t prune them hard. Invincibelle Spirit hydrangea bushes are easy plants to grow if you simply locate them in the right spot, to begin with. Hydrangea paniculata ‘Limelight’ pruned to form a tree. She lives in the Boise aea of Idaho where the summer highs are in the triple digits and the average low in the winter is 30 degrees (it does get lower). Repeat this process each year until the entire bush is rejuvenated. The process is relatively simple, as long as you follow the basics of hydrangea care. They start to push out new growth once warmer temperatures are felt, but then when the weather drops again, it can cause serious damage to that fresh growth. Cut these down to the ground. The further south you go in their range, the less sun you should give them, but you can grow them in full sun in the northern parts of their range. Use your pruning shears to cut old, under-producing stems back to within 2 inches of the ground immediately after the bush has finished flowering. Plants grow to be the size and shape that their genetics dictate, and trying to fight those genetics is foolish, especially if the plants have already gotten too tall. Hydrangeas that bloom on new wood require pruning in late winter or early spring. Don’t cut your hydrangea shorter than 18 inches (46 cm) above the ground. Assuming it's a macrophylla and not a reblooming cultivar, then if you cut it down now you will have no chance of flowers next year. Hydrangea serrata can be pruned in the same way. Choose only the most mature blooms. All hydrangeas do not do this, as my father-in-law has one that's about three feet high which grows new leaves from the old stems each year. Posted by Tamara Horne April 1, 2018 April 1, 2018 Leave a comment on Why, When and How to Prune Annabelle Hydrangea. Can I cut branches back and, if so, at what period? When Cutting Back Hydrangeas Can Be Helpful: (1) All dead stems should be removed from hydrangeas every year. This again will give beautiful leaves but few, if any, blooms. Cut the hydrangeas in the morning when it’s cooler. Hydrangeas are an eager shrub. Leave the old flowers on over winter as this provides protection to developing buds during a cold snap. It’s best to wear gloves while you cut the flowers. You can also use the nodes as your reference for cutting. It’s tough, though, to use pruning hydrangeas as a way to control plant height. In the summer they would stand about 8 feet tall, I would normally remove dead branches in the summer but now they are all cut down to the ground. While deadheading your hydrangeas can be helpful for new growth, Myers says too much pruning can be detrimental. Before pruning, be sure to know what type of hydrangea you have. Comments 0 Comment. Photo: www.fast-growing-trees.com Question: I have a hydrangea tree, but its branches are too long, so when it rains, the branches and flowers bend down to the ground. Although the only essential work is to remove dead wood in spring, these species flower more prolifically when pruned back annually to a framework of branches. Neglected, overgrown vines can be cut back to ground level in early spring to rejuvenate the plant. Grow hydrangeas in a partially shaded, sheltered spot, in moist but well-drained soil. Use a balanced fertilizer such as 16-16-16 at the time they start to bloom. I tried submerging mine for a second time when the florets started wilting again, but they just turned brown and disintegrated (this can also happen if you leave them submerged for too long), so it's really a one-time trick. Prune mophead and lacecap varieties in spring and other varieties in summer. New leaves only grow from the base. And, they are not limited to … Whichever type of hydrangeas you have, the plant will benefit from removing dead stems every fall or early spring. Then in spring simply dead-head them, cut back an inch or two down to the nearest set of healthy buds. Cut back 1/3 of the main branches to the ground on older hydrangeas (like H. macrophylla) that grow on 2-year old wood. I have some beautiful hydrangeas that after 15 years are nearly 5ft high and across. I noticed this weekend that he had cut them down to about an inch from the ground. We’ve got you covered.) Cut 1⁄2” to 1” above a budding node at a 45-degree angle. … Mulch annually with well-rotted manure or compost. You can cut off the dried flowerheads then or leave them on the bush for winter and even up the remaining stems. Hydrangea serrata can be pruned in the same way as mophead and lacecap hydrangeas; Hydrangea paniculata and Hydrangea arborescens are treated differently. 5. 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