Asked by: AriƱe Menager
home and garden landscaping

How do you fertilize a Green Giant Thuja?

Last Updated: 23rd February, 2020

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Green giant thujas will grow up to 4 feet per year if watered regularly and fertilized once or twice per year.
  1. Place 2 tablespoons of a slow-release fertilizer in the hole before planting the thuja.
  2. Apply a slow-release fertilizer in the early spring before new growth appears.

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Thereof, what is the best fertilizer for green giants?

For your Thuja Green Giant plants you need a fertilizer that has a high first number, and the other two should be equal or lower than that nitrogen number. Numbers like 10-8-6, or 15-5-10, or 20-20-20 are all good formulas to use.

Beside above, how often should you fertilize Green Giant arborvitae? Generally, Thuja Green Giants don't need to be fertilized. But you can give your Thujas a boost once or twice a year with a well-balanced, slow release fertilizer, like formula 10-10-10 or 14-14-14.

Also, should I fertilize Green Giant arborvitae?

You should fertilize your arborvitae during the growing season. Offer the first feeding just before new growth begins. Fertilize at the intervals recommended on the container. Stop fertilizing arborvitae one month before the first frost in your region.

How do you fertilize arborvitae trees?

Healthy arborvitae benefit most from annual fertilizer applied in early spring before new growth begins. Use slow-release, granular fertilizer with a higher first number, such as 12-6-4 or 10-8-6. Broadcast granules at a rate of one-third pound for each foot of the plant's height.

Related Question Answers

Mirco Manent

Professional

Is Miracle Grow good for arborvitae?

Arborvitae can handle compacted, wet soil, as well as highly alkaline conditions. You may still find it necessary to apply a fertilizer, such as Miracle-Gro, to help the tree reach its full potential, which can range from 10 to 30 feet tall, according to University of Illinois Extension.

Signe Busta

Professional

How long do green giants live?

Estimate. According to the University of Washington, most arborvitae trees live between 40 and 150 years. So you can safely assume that a well-cared for thuja green giant, grown in the proper USDA hardiness zone, will live for at least four decades.

Odis Lili

Professional

How often do you water a green giant?

Wondering how often to water thuja green giant? Water every day or two for the first 2-3 months, until the plants are established. After that, they should get one inch of water every week or ten days. If you're having a dry spell, or your soil is very sandy, you should water more often.

Valle Thomas

Explainer

Are coffee grounds good for arborvitae?

Their original height was between 5 and 6 feet and they are now between 8 to 8.5 feet. Also, I have read in several books that coffee grounds are good for fertilizing evergreen trees like arborvitaes because the grounds provide acidity. Coffee grinds, although somewhat acidic, would not be a substitute.

Fiamma Fawn

Explainer

How wide do Green Giants get?

Thuja Green Giants get their iconic name by growing up to massive heights between 20 to 40 feet tall. They also spread out and grow to be about 12 to 20 feet wide.

Leonilda Porras

Pundit

How fast do green giants grow?

Green Giant shrubs can climb to a towering height of 50 to 60 feet at maturity, with a spread of 12 to 20 feet. Furthermore, their growth can be as fast as 3 feet per year.

Madicke Liebisch

Pundit

How long does it take for a Thuja Green Giant to become established?

Thuja Green Giant Growth Rate
Three feet a year is normal in the early years. Up to five feet a year is possible, under ideal conditions. With growth rates like that, after a few short years you have 15 foot, 20 foot and soon 30 to 40 feet trees.

Rosalvina Lecea

Pundit

How do I know if my arborvitae is dying?

If you expose the roots on your arborvitae they should be light-colored and healthy looking. If the roots are dark and friable they are damaged and won't function normally. You may also have a discolored area at the base of the trunk of the tree from Phytophthora fungus.

Liberato Inesa

Pundit

How often should you water newly planted green giant arborvitae?

Arborvitae will tolerate a moister soil than many evergreens, but they will "drown" if kept overly wet. Generally, the idea for newly planted shrubs is to water more often at the very beginning and then decrease it gradually so that watering about every five days to once a week is usually enough.

Aranza Lubian

Pundit

When should I feed my Green Giant arborvitae?

Green giant thujas will grow up to 4 feet per year if watered regularly and fertilized once or twice per year.
  1. Place 2 tablespoons of a slow-release fertilizer in the hole before planting the thuja.
  2. Apply a slow-release fertilizer in the early spring before new growth appears.

Shiva Zeno

Teacher

How do I make my arborvitae thicker?

How to Get Arborvitae Thicker
  1. Check your arborvitae's growing conditions to make sure they are ideal. Arborvitae needs full sun, nutritious soil and ample water.
  2. Prune to let more light in. Your arborvitae's bushy top growth may be preventing light from reaching its lower branches.
  3. Fill in thin spots.

Benyamin Kalisch

Teacher

How do you prune a Green Giant arborvitae?

Each time you shear, remove all dead and broken branches with hand pruners, and then shear back about one half the length of the new green growth. When you do choose to shear your "Green Giant" arborvitae, water it well a day or two before and apply a granular fertilizer every two weeks to help it recover.

Bi Burbano

Teacher

How do you keep arborvitae from turning brown?

Regardless of the type of arborvitae you plant, your best bet for avoiding winter burn is to wrap the arborvitae in burlap. Placement in the landscape can also help prevent browning: Avoid planting arborvitae on the south side of a wall (the sun can be an enemy in winter) or in an area exposed to high winds.

Bonoso Valyavsky

Teacher

Should you top arborvitae?

Insight. 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.

Carrol Hollerbach

Reviewer

How fast do Green Giant arborvitae grow a year?

Green Giant ArborvitaeThuja standishii x plicata 'Green Giant' The green giant arborvitae is a large, vigorous, fast-growing evergreen—shooting up by as much as 3 feet per year until maturity. Its natural pyramidal to conical form boasts dense, rich green foliage that darkens or bronzes slightly in the winter.

Sassi Lage

Reviewer

How do I get rid of bagworms on my arborvitae?

If the infestation on the arborvitae shrub is light enough, grab a pair of scissors and snip the bags off the plant. Dispose of the bags away from the garden so the caterpillars can't find their way back, or burn them to kill the bagworms. Hand culling is best from late fall to early spring, before the eggs hatch.

Yasyn Deacon

Reviewer

Why are my green giants turning brown?

If your Thuja 'Green Giant' is growing poorly, turning to reddish brown foliage, and seems to be dying, it could be root rot caused by soggy or saturated soil conditions. Let the soil line get a little dry between waterings. Water in the mornings so the soil has time to dry out during the day.

Junmei Zorzetto

Reviewer

How do you care for a Green Giant Thuja?

How to Care for a Thuja Green Giant
  1. Select an appropriate planting location for your Thuja Green Giant tree based on its growing requirements.
  2. Plant your tree in rich, moist, well-draining soil at the same level it was planted in its nursery container.
  3. Water your Thuja Green Giant tree regularly to keep its soil nice and moist.

Sadaf Vreden

Supporter

Do Thuja Green Giants shed?

There are just six species of Thuja and all of them are trees of varying sizes, usually upright and conical in shape when mature. The bark is brown and stringy, often shedding in strips.