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Thuja Green Giant- Jumbo Gallons
ENLARGE IMAGE Ship Size: 3'+ feet tall 1 gallon pots. Ideal size with excellent success rate for large scale plantings!
  • Thuja Green Giant grows over 18' tall in just 5 years
  • Thuja Green Giant grows an amazing 3' a year
  • Thuja Green Giant makes the perfect fast-growing hedge
  • Our Well-branched Jumbo 1 gallon size
  • Thuja Green Giant is fast growing up to 3 ft per year

Thuja Green Giant- Jumbo Gallons

Fast growing arborvitae tree grows up to 3' a year in sand or clay! Best selling privacy screen!
Item: #THUGG1G
ZONE 5,6,7,8
As low as $24.99
  • Jumbo 1-Gallon pots tall for faster results!
  • Perfect fast-growing Hedge Plant
  • Evergreen foliage; stays colorful all winter
  • Thuja Green Giant thrives in full sun to part shade
  • Easily adapts to sandy or heavy clay soils
  • Plant in groups of 6, 12, or 24 for best results
  • Space 5' apart for fastest coverage
  • Ship Size: Hefty 1 gal pots; 3' + tall, floor to tip
  • View all Evergreen trees & hedge plants
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Buy 6 or more for $27.99 each$12.00
Buy 12 or more for $26.99 each$36.00
Buy 24 or more for $25.99 each$96.00
Buy 48 or more for $24.99 each$240.00
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Thuja Green Giant- Jumbo Gallons Description

Thuja Green Giant - The Ultimate Fast Growing Privacy Screen. Beautiful as a specimen tree or windbreak with extremely uniform pyramidal shape, good disease and pest resistance, and intensely fragrant  foliage that makes wonderful cut branches for Holiday arrangements!

No other plant can beat Thuja Green Giant Arborvitae for creating a colorful, fast growing, evergreen privacy fence in your garden. This award winning introduction from the U.S. National Arboretum is regarded as the most distinguished landscaping tree in America, and it's our #1 best selling privacy tree; guaranteed to give you years of ever-increasing beauty!

When you order trees from GreatGardenPlants.com, you'll receive 3+ feet tall Thuja plants in 1 Gallon Containers! These plants have been grown for over 2 years, and carefully hand selected for highest quality before shipping.

Top TEN Reasons for Planting Green Giant Arborvitae

  1. Grows over 3' a year
  2. One of the fastest growing evergreens
  3. Adaptable to both clay & sand
  4. Disease and pest resistant
  5. Luxurious green color all year
  6. Superb privacy screen or windbreak
  7. Thrives in intense heat & humidity
  8. Intensely fragrant foliage
  9. Drought tolerant once established
  10. Exceptional Customer Support

Fast Facts about Thuja Green Giant

Growth Habit:  --- If watering and fertilizing are maintained, Green Giant Thuja can grow 3 ft or more each year, eventually reaching over 50-60 feet tall with a base measuring between 8-10' .  There are few trees that can grow that fast and still withstand high winds, heavy ice and snow loads.

Hardiness and drought tolerance:   --- Once established, Green Giant Thuja can withstand periods of drought, even thriving in the intense heat and humidity of Atlanta, Georgia. Best grown in Zones 5-8.  

Soil, Water, Light Needs:   --- Thujas are highly adaptable, will grow in a wide range of soil conditions, and thrive in both sandy, and heavy clay garden soils. They need evenly moist soil, but cannot tolerate wet, soggy or water logged areas. Those living in warmer, southern planting zones, or those who have very sandy soils that tend to dry out quickly may choose to mulch in order to cool the soil, preserve moisture, and feed the trees. If you choose to mulch, never use more than 3 inches of mulch, keep mulch a few inches away from trunk to prevent rot, and never use plastic over the roots. Thuja love sun, and thrive best in full sun, but will grow in light shade, though the foliage will not be as dense, and the tree will not grow as tall.

Pest & Diseases Info : --- Very robust and resistant to pests and diseases. Even bagworms leave it alone.  Deer generally leave it alone, but are known to nibble in areas where other browse is not available. No plant is deer proof if deer are plentiful and hungry. If you have problem with deer nibbling, you might want to purchase a product called Plantskydd, one of the most effective deer repellents we know of.  This will prevent the deer from continuing to feed.  Wait until spring to see if new growth breaks out. If not, you might need to replace the trees.

How does it compare to other evergreens?  --- Green Giant arborvitae is more drought tolerant than Leyland Cypress, and less prone to pests and disease than many other evergreens. Its disease resistance, adaptability, and dense foliage, make a great choice over other evergreens like hemlock and spruce in the North

Pruning and Shearing:--- If left unpruned, Thuja Green Giant will form a graceful pyramidal shape 40 - 60 ft. tall, and foliage that stays dense all the way to the ground. Once established, they respond wonderfully to pruning in early summer (after they've had their spring flush). You can use a hedge sheer or trim by hand, but trimming by hand, particularly when cutting back the main leader, and the competing verticals will look more natural. The leaders on the young Green Giants tend to grow quickly, outpacing the main body of the tree, and can leave it looking leggy, so trimming back the leader by one third in late spring or early summer will encourage the plant to be more uniform and bushy. If you choose to shear your Thuja into a hedge shape you'll be doing this 2-3 times from spring to midsummer. Prune off dead and broken growth with a hand pruners, then shear only the new growth back by about half. Make sure to water and fertilize to help the plant recover from shearing.

Fertilizing:--- Like most evergreens, Thuja do not need to be fertilized at planting time. Fertilizing each spring, once established is all that is needed. We use Osmocote Slow-Release Fertilizer, available at any good garden center. Top dress in spring as new growth is emerging; April 15, or "tax day" is a good reminder for annually fertilizing. This will feed your Thuja for weeks & is needed only once per year.

When to Plant:

Thuja can be planted in early spring or in fall, six to eight weeks before hard cold and frost set in, when the weather is cool.   You can continue to plant in early summer if you are in a northern climate, and weather remains cool. The most important thing is going into winter is that Thuja are well hydrated. The cold isn’t the problem, lack of water is.  This is called winter burn.  Winter winds dry out the evergreen leaves so the outer few inches turn brown. In April, we recommend taking your hedge trimmers and removing the brown.  Thujas will put out new growth and be fine by the end of May. We’ve heard of mixed results with burlap.  If you elect to use them, avoid using any anti-desiccants. Never fertilize in fall, as it stimulates new growth that is more tender, and susceptible to winter damage.

Planting - How To

  1. Once you have identified your planting location,
  2. Dig a hole twice as large & deep as your root ball
  3. Refer to spacing information below
  4. Fill in hole with organic matter. This helps to get your plants off to a good start.
  5. Remove Thuja from plastic container and lightly loosen the roots. Place in the hole with fresh soil and tap down the soil so plant is set firm and there is no gaps in the soil. Make sure the top of the root ball is flush with the soil line – not above or below it.
  6. Provide up to an inch of water a week for newly planted Thujas.

Plant spacing

Thujas can be planted in single or staggered rows. Depending on desired effect, space Thuja 5-8 feet apart

Single Row Spacing

 XXXXXXX --- Thuja Green Giant spaced 5 feet apart in a single row

Staggered Row Spacing

For extra privacy or noise abatement, plant Thuja not in one straight line but a double row alternating the placement as in this diagram planting 10 feet apart.  It is tempting to go closer to get very fast coverage, but since Thujas can grow three feet a year try to be a little more patient. You’ll be rewarded because mature plants will be spaced perfectly.

  X X X X X

   X X X X X  - Staggered Rows Spacing 8-10' apart (5 feet apart beween rows)

Planting FAQ

Can I plant near old hardwoods? If you can keep them adequately moist during their first 1-2 years of establishment, you'll be fine. They would need a good soaking every week during the spring & hot summer months

How close to a building can I plant?  You should plant at least 8 feet away from any building structure

Is Thuja salt tolerant?  No, Thuja is salt sensitive. It can however, withstand heavy ice or snow loads.

I just planted my Thujas in spring and have not seen any summer growth, why?  Plants are busy “putting their roots down” so to speak.  The good stuff is happening beneath the soil, where the plants are establishing themselves in their new environment.  Depending on conditions, you might see growth spurts by fall, or definitely by the following year.

Need something shorter?  Consider Thuja Emerald which grows only 7-8 feet tall. Leyland Cypress, Thuja Wintergreen are other excellent hedge plants.  Other considerations (not evergreen) include Ornamental Grasses, Burning Bush, or Hydrangeas.

Quick Facts

  • Botanical Name:
    Thuja 'Green Giant'
  • Common Name:
  • Zone:
  • Sun Exposure:
    Sun-Part Shade
  • Delivery:
    See Schedule
  • Ship Form:
    1 gal
  • Soil Type:
  • Soil Moisture:
  • Height x Width:
    50' x 10'
  • Flower Color:
  • Foliage Color:
  • Bloom Season:
  • Uses:
    Background, Foundation Planting, Hedge, Massing, Ornamental, Privacy, Screen, Specimen
  • Cannot Ship to:
    AK, CAN, HI, PR
  • Patent #:



Soil: Best grown in moist, fertile, well-drained soils. Tolerates somewhat wide range of soils and some dry conditions. Poorly drained and wet sites should be avoided, and it is very salt-sensitive.
Light: Full sun (6 hrs direct light daily), Partial sun/shade (4-6 hrs light daily)
Water: Keep moist, but do not over water. Appreciates well-drained soil.
Spacing: 3 - 5 ft
Fertilizing: Top dress in spring with a slow release, balanced fertilizer.
Winterizing: Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder zones. Tolerates wind once established, and withstands heavy ice or snow. Darkens or bronzes slightly in the winter. Note -- The oldest, interior branchlets on an arborvitae normally turn brown and fall off in autumn. This aging process is different from drought stress, which on arborvitae appears on the tree outside the interior foliage as an abnormal yellowing or browning, known as flagging. This discoloration may not appear until a season or two after the drought stress was most severe.
Maintenance & Pruning: Requires little or no pruning but can be sheared easily if necessary. When pruning is necessary, it is recommended to only trim back the new growth of the current season, other than to remove any die back.


Write a review
When we ordered it said 4+ feet but we got scrawny barely 3 foot trees.
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Duncan Smith  |  Sep 24, 2018
We ordered these trees and when we did the site claimed 4+ feet per tree. First they don't tell you that they are from the bottom of the pot to the very top of the longest stretched single strand. The trees arrived and they were skinny, not in great shape, yellowing, and some weren't even 3 feet tall including the pot. Upon contacting the company they first did offer a 25% discount, which would have been moot because we didn't pay for those sad, small trees. They could not send us any larger trees and the story changed from "yes the site did say they were larger when your ordered them" to "they have never been more than 3+ feet tall". I went to Home Depot to find $20 trees of this type which were in 3 gallon pots, much fuller, and in way better looking shape. More over I wouldn't have had to wait almost a month for them. I also understand that by writing this review the company may retract the refund, but what happened to us must be told to others. If you want to save money and time, just steer away from this company. The trees on the site in the pots are NOT what you get when you order. Their site doesn't have the option to upload a photo, or I would show their sad specimens vs what a Big Box store can provide for a comparable price.
Owner Response: Hello Mr Smith - We try to keep the website updated with sizes of plants that are shipping. After reviewing your order, I do see that we have refunded you 25% of your order. I am glad that we were able to come to a mutual solution for your issues. Mary

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Bradley Chetwood  |  Aug 2, 2018
Was amazed at how the dozen I ordered looked when I unboxed them. Way better condition than many trees I've paid more for a the big box stores. Granted, they were only in transit for 3 days which may be a factor healthwise, but it looked like the FedEx folks played contact football with the boxes, yet all 12 were unscathed! Talk about a hearty tree!! 4 months later, after planting in our northern Kentucky yard that's 95% clay you could sell to a pottery shop, they're kickin so much a**!! Already seeing plenty of new growth and just finally got around to fertilizing. Transaction couldn't have gone smoother. I'd recommend this company to ANYBODY who'd listen.
Owner Response: Good Morning Bradley! So glad to hear your trees are thriving! We always enjoy pictures of customer's gardens if you want to send one to info@greatgardenplants.com Happy Gardening!! Mary

Thuja Green Giants
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NaomieKing  |  Apr 30, 2018
Very disappointed!!!
Owner Response: Sorry to hear this. Please call the office to express your concerns, we always want our customers to be happy.

Recent purchase
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Michael Garofalo  |  Apr 13, 2018
Yesterday, I received my order of a dozen green giant thuja arborvitae. Each plant measured three feet tall, as promised, and appeared is excellent condition. I was throughly impressed with how well the order was packaged and shipped. My order was shipped on the date I was provided and arrived in a timely manor. Great garden plants.com exceeded my expectations and I will definitely order through them again.

Keep up the Good Work
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Kurt K  |  May 4, 2017
I received my order of 15 trees yesterday. The trees are in great shape and larger than I expected, much appreciated. You have a great website that is easy to navigate, awesome prices and great service....Keep up the good work.

More than I could ask for
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Jeff Lazewski  |  Apr 19, 2017
I bought 10 green giants last spring. The trees took to the soil very well and are doing great! I ordered 45 more trees and just received them. The trees are well over 3 ft tall. Some over 4 ft. I also had a bunch of questions and their customer service was great! Answered all my questions and answered very quick. I could not be happier. I would highly recommend great garden plants!

Wonderful Thuja Green Giants
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Cheryl H.  |  Jan 9, 2017
This email is long overdue...I made a purchase of your Thuja Green Giants in 2013. I had to reschedule my order delivery twice. Then I increased the order to a total of 20 of these trees. The trees were in absolute perfect condition, as well as perfectly packed for shipping. I haven't lost one! They are everything you advertise! I have wanted to send this THANK YOU for some time. Also, all the assistance I received from the lady I dealt with on the phone during my ordering, rescheduling, increasing the quantity of the order, to actual delivery...she was so very helpful, gracious and patient.

Green Giants
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Narina W  |  Jan 6, 2017
"Just to follow up- ALL my Thujas have grown and done well. I ordered 1 gallon Thujas from another company- and while they were in great shape and much cheaper- they were significantly smaller than the ones that you get at Great Garden Plants. If you're looking for true jumbo 1 gallon Thujas, I would say Great Garden Plants are a good choice for a larger start."

Great Plants!!
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Donna M  |  Nov 15, 2012
Just spent a gorgeous fall afternoon here in WV planting the 9 Thuja Green Giant trees! Hope they do well and grow fast! Just wanted to let you kn-w that my husband and I wree very pleased with the Thujas…size, packaging, quality of the plants, etc!! I'm sure I will be doing more business with you next spring!