What is the best fertilizer for Thuja Green Giant?

Asked By: Donika Quattrociocchi | Last Updated: 22nd March, 2020
Category: home and garden landscaping
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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.

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Accordingly, how do you fertilize a Green Giant Thuja?

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.

Similarly, what do you feed Thuja? Thuja plants are low-maintenance and do not need much care to thrive. To prevent common Thuja problems such as browning, make sure to water properly and feed with a liquid fertiliser. As a rule of thumb, most Thuja cultivars under 3 years of age will do well if watered every other day.

In this way, should I fertilize Thuja Green Giant?

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.

What's the best fertilizer for Arborvitaes?

Arborvitae trees need either a slow release of granular fertilizer or a single nutrient fertilizer such as the nitrogen. The single-nutrient fertilizer, nitrogen, is crucial for this tree. Nitrogen is considered the best fertilizer for your arborvitae because it helps it to have a healthy reproduction and growth.

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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.

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.

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.

Why are my Thuja trees turning brown?

The Reason Why Arborvitae Foliage Turns Brown
The combination of wind, sun, freezing temperatures, and lack of available water in winter can cause arborvitae foliage (and the leaves of other evergreens, as well) to turn brown. This happens because they are drying out.

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.

How much sun does a Thuja Green Giant need?

Thuja Green Giant should do great with 6 hours of filtered sunlight every day. We've seen them planted in much heavier shade. Prepare a planting location that receives 6 hours of sun a day. Test pH of soil.

How much do green giants grow a year?

The green giant arborvitae is a large, vigorous, fast-growing evergreen—shooting up by as much as 3 feet per year until maturity.

How wide do Green Giants get?

Thuja Green Giant Spacing. Thuja Green Giants typically grow to be about 10-12 feet wide at maturity. Most people use Green Giants as a privacy screen.

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.

Are Thuja Green Giant roots invasive?

Root System. The root systems of arborvitae are generally shallow depending on the variety and may spread to the dripline or edges of the branches, according to North Dakota State University. Green Giant Arborvitae are not known for having invasive or aggressive roots.

Where can I use 10 10 10 fertilizer?

Apply the 10-10-10 slow-release fertilizer at a rate of 10 pounds per 1,000 square feet of lawn to provide the lawn with 1 pound of nitrogen. Do not exceed this rate. Position a fertilizer spreader over a sidewalk, driveway or other hard surface.

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.

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.

Do green giants grow in shade?

Light Requirements. “Green Giant” will grow in both full sun and partial shade, and tolerates drought well. However, although it puts up with both heat and dry soil, in hot summer climates it does not appreciate intense afternoon sunlight.

Will Thuja grow back?

On your arborvitae trees the upright shoots from the green parts of the horizontal branches will eventually grow out and up vertically to fill in the top open area of the arborvitae, but it will take several seasons to see . The cut-off top will not regrow.