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The Daily Insight

How much sun does a Green Giant arborvitae need

Author

Dylan Hughes

Published Mar 28, 2026

Thuja Green Giants are highly adaptable and can grow well in the spectrum from full sun to partial shade. These trees do best with a minimum of four hours of direct and unfiltered sunlight per day.

Can emerald green arborvitae grow in shade?

Emerald Green Arborvitae thrive in full sun but can grow in partial shade as well. Too much shade will lead to sparse growth. To flourish, these trees need at least six hours of direct sunlight per day.

What kills Green Giant arborvitae?

Both underwatering and overwatering can easily kill a Thuja ‘Green Giant’. Indications of insufficient water include needle tips turning brown and yellow foliage, while overwatering results in discolored, drooping branches. Like most evergreens, the Thuja ‘Green Giant’ prefers an acidic soil.

Can Arborvitaes survive in shade?

Arborvitae (Thuja) perform best when planted in a minimum of six hours or more of direct sun per day. However, they can tolerate light shade in areas that only receive four hours of midday sun per day. … Arborvitae lose their dense habit if grown in full shade.

How fast do Green Giant Arborvitaes grow?

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.

Are Green Giant arborvitae shade tolerant?

Sun and shade Thuja Green Giants are highly adaptable and can grow well in the spectrum from full sun to partial shade. These trees do best with a minimum of four hours of direct and unfiltered sunlight per day.

What is the difference between Green Giant and emerald green arborvitae?

Green Giants have large, wide bases and grow narrower towards the top, giving them a pyramidal shape that causes them to look like giant Christmas Trees. Emerald Green Thujas have a brighter green glow, which causes them to shine with a bright green hue in the sunlight.

Which evergreens do well in shade?

  • Aucuba.
  • Boxwood.
  • Hemlock (Canada and Carolina varieties)
  • Leucothoe (Coast and Drooping species)
  • Dwarf Bamboo.
  • Dwarf Chinese Holly.
  • Dwarf Nandina.
  • Arborvitae (Emerald, Globe, and Techny varieties)

Which arborvitae is best in shade?

The American arborvitae cultivar “Emerald” or “Smaragd” (Thuja occidentalis “Smaragd”) is adapted to partial shade, and does well as a hedge plant, growing to heights of up to 14 feet. It is hardy in U.S. Department of Agriculture plant hardiness zones 2 through 8.

Do Arborvitaes grow in the winter?

Depending on where you live, they may be planted in late winter if soils are workable, or you may have to wait until early spring when the earth has thawed.

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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.

How far from a fence should I plant a Thuja Green Giant?

If your screen or hedge is against a building, plant 6 feet from the wall, to protect the foundations. If you are planting against a fence, plant 3 feet from the fence so that the lower part of the plants remains bushy and the hedge remains on your side of the property line.

How many Green Giant arborvitae do I need?

Simply plant two rows of trees and stagger the rows. We recommend 8 feet between each plant and 4 feet between rows but you can experiment with this. Just makes sure that each tree is 5 feet away from another. Example of Thuja Green Giant Staggered Row Spacing.

Will deer eat Green giant arborvitae?

Deer are pests that eat arborvitae, but green giant arborvitae is the only one that I’ve planted that has not been damaged by deer. They will taste it but apparently don’t like the flavor. … The plants listed in that article as most deer-resistant are conoy viburnum, switchgrass and green giant arborvitae.

Do Green Giants turn brown in winter?

Thuja green giant arborvitae turning brown is part of the plant’s normal growth cycle, along with the browning of many arborvitae varieties, and often trees require no treatment. Although American arborvitae are evergreen, the trees’ inner branches turn brown and drop during fall and winter.

How can I make my Green Giant grow faster?

Water and Fertilizer for Thuja Green Giant For the quickest growth in that first season, water-soluble fertilizer gives the best results. This soaks right down into the root zone, and it is quickly absorbed and used by the trees. Look for a blend made for evergreen hedges and follow the directions.

Which grows faster Leyland cypress or Green Giant arborvitae?

Green Giant Arborvitae is the best fast-growing Leyland Cypress alternative. It is essentially disease-free, with moderate drought resistance and excellent tolerance of heat and humidity. It can grow up to 3 feet per year and can be maintained with 1 or 2 pruning sessions per year.

Is there a difference between Green Giant Arborvitae and Thuja Green Giant?

Fast-growing evergreen Thuja standishii x plicata “Green Giant” is often promoted as the ideal tree for impatient gardeners. While different suppliers may refer to this tree as Arborvitae “Green Giant” or Thuja “Green Giant,” they are the same species.

What is a Thuja Green Giant?

Thuja ‘Green Giant’ is a large, needled, evergreen, conifer tree that is a hybrid cultivar of T. plicata and T. … This tree does best in a moist, full-sun location with light afternoon shade. It tolerates a wide range of soils and, in optimal conditions, can grow 3-4 feet per year.

Why is my Green Giant 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.

Do Arborvitaes turn brown in the fall?

Answer: The browning of the inner foliage is probably due to seasonal needle drop. It’s normal for evergreens (pine, spruce, fir, juniper, arborvitae, etc.) to shed their oldest (innermost) needles in fall. The innermost needles gradually turn yellow or brown and drop to the ground.

How do you take care of a Green Giant arborvitae?

Although they prefer slightly acidic soil, they adjust fine to soils that are alkaline and very acidic. After planting your Thuja Green Giant, keep the soil moist but not soggy or oversaturated. Thujas won’t do well if they sit in standing water, so avoid low areas of your yard where standing water could collect.

What hedge grows in full shade?

  1. Hicks Yew (Taxus x media ‘Hicksii’)
  2. European Beech (Fagus sylvatica) …
  3. Green Giant Arborvitae (Thuja x ‘Green Giant’) & Virescens Western Red Cedar (Thuja plicata ‘Virescens’) …
  4. Teton Firethorn (Pyracantha ‘Teton’) …
  5. Schip laurel (Prunus laurocerasus ‘Schipkaensis’) …

How much do Arborvitaes grow in a year?

This tree grows at a slow to medium rate, with height increases of anywhere from less than 12″ to 24″ per year.

What is a good shade Bush?

  • Oakleaf Hydrangea. For a nearly carefree shrub, you can’t beat this native hydrangea. …
  • ‘Pink Charm’ Mountain Laurel. …
  • Rhododendron. …
  • Opening Day Doublefile Viburnum. …
  • Virginia Sweetspire. …
  • Camellia. …
  • Serviceberry. …
  • Japanese Pieris.

What is a Techny arborvitae?

The Techny Arborvitae is a clone of its parent plant the White Cedar or American Arborvitae. This special cultivar was found growing in Mission Gardens in Techny, Illinois and due to its strong characteristics has been cloned ever since and is sometimes called the Mission arborvitae.

What is a fast growing shade tree?

  • Quaking Aspen (Populus tremuloides) …
  • Northern Red Oak (Quercus rubra) …
  • Northern Catalpa (Catalpa speciosa) …
  • Red Sunset Maple (Acer rubrum ‘Franksred’) …
  • Hackberry (Celtis occidentalis) …
  • Pin Oak (Quercus palustris) …
  • River Birch (Betula nigra) …
  • Sawtooth Oak (Quercus acutissima)

Can Nandina grow in shade?

Nandina can grow in full sun to shade and a range of soil types, but it prefers moist, well-drained, fertile soil. It is adaptable to extremes of soil and exposure and it relatively pest and disease free.

Do Arborvitaes have lifespan?

Arborvitaes are classified as trees. But, it is okay, if you refer to them as shrubs or bushes. Long lived: The average life expectancy of arborvitae tree 50 to 150 years.

Why are my Arborvitaes dying?

Most often, arborvitae trees brown and die due to either over-saturated soil or extreme drop in temperature. Another potential reason for your tree dying could be due to not having enough sunlight. … Whether you over-watered your tree or the weather has been extreme, it is crucial to act fast to save your arborvitae.

Is Miracle Gro good for Arborvitaes?

Miracle-Gro Miracid Plant Food is designed to be used for acid-loving plants such as hydrangeas, azaleas, and rhododendrons; it is not appropriate for evergreens such as arborvitae. You can browse our other water soluble fertilizers here.