Topping a mature arborvitae requires removal of lots of twigs and usually results in exposing nude twigs. The overhead view of a topped arborvitae is terrible, with lots of brown, dead-looking twigs. The shrub will not evenly regrow needles to mask the bald, exposed area caused by harsh topping. via
What happens if you top an arborvitae?
Topping is often done when a tree's height becomes problematic. When the top of an arborvitae is cut off, however, it creates a very flat and unsightly appearance. No new growth will occur once the upward growing branch tips have been cut, and no horticultural benefit exists for topping an arborvitae. via
How much can you cut off the top of arborvitae?
You can safely remove up to 2 feet off their tops. Make the cut near a lateral branch. It's best to do this in early spring before new growth begins, so move quickly. via
How do you trim the top of an arborvitae?
To trim arborvitae properly, trim the terminal tips of the foliage. Make sure not to remove more than 30% of the tree's foliage. Also make sure to only cut into green, young wood. Work in sections as you cut your tree to make less mistakes. via
Is it OK to trim the tops of arborvitae?
Arborvitae will produce growth from dormant buds on old wood. The lower branches need sunlight and air flow to grow so you will need to continue to trim these trees. Both the vertical shoots at the top and throughout the tree should be trimmed so that they don't shade and prevent air flow for the bottom branches. via
How do you stop arborvitae from growing taller?
If you must prune the top of an arborvitae, it's best to lightly trim back the tips of the plants as they approach the maximum height desired. For example, if you want the arborvitae to get no taller than 8 feet, begin to tip-trim the top of the shrub once it gets 6 feet tall. via
How do you rejuvenate an arborvitae?
Pruning arborvitae may also entail removing branches and growth that shoots out of the border of the plant. Removing these will make the plant seem fuller and healthier. Cutting it down to just a few inches off the ground may rejuvenate an arborvitae that is overgrown or weak. via
What do you do with an overgrown arborvitae?
When the arborvitae is badly overgrown, you should trim it in stages to avoid cutting down to bare wood, as the tree cannot regenerate green foliage growth at that point. Overall, trimming cuts should always be thoughtfully considered and implemented with a light touch. via
Will arborvitae grow back after turning brown?
Brown arborvitae can be saved from conditions that cause it to brown, but it usually doesn't change back to the healthy green it once was. That doesn't mean the entire tree can't be saved, however. Give the tree time to see if it's able to recover or if the new growth from the tree is any different. via
Can I keep an arborvitae small?
Pruning Arborvitae to Shorten a Tall Hedge
The plant can maintain itself after flowering and maintain the height you are looking for. If you are making drastic changes to its height, it is best to cut back a foot or so a year until you have the size you want. via
How do you limit the height of a Green Giant arborvitae?
They will need to be pruned each year after the annual growth hardens off. Start at the top reducing the height as much as possible, then prune the sides from the top down. Attempting to or keeping them approximately 1/4 their normal size will likely shorten their lives. via
What is the best fertilizer for arborvitae?
Best Fertilizer For Arborvitae
We recommend using slow release fertilizer that has 50% nitrogen and has a high first number, like a 12-6-4 or 10-8-6 mixture. Granualized fertilizer works the best because it helps prevent the roots from burning and allow you to only fertilize once per year. via