Junior Giant Arborvitae

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  • Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
  • Mature Height 15 - 20 Feet
  • Mature Spread 8 - 10 Feet
  • Growing Zones 5 - 8

Bred from the famous Green Giant, Junior Giant Arborvitae has a compact frame that is perfect for creating privacy in smaller spaces with a maximum height of 20 feet. You can install this easy shrub in hedges, borders, and privacy screens. The foliage is a deep-textured green that rarely needs pruning and will stay green all year. This non-flowering shrub is perfect for beginner gardeners or those who want a low-maintenance privacy shrub. It brings a sense of calm and lightness to a border and can increase property value. 

Perfect for mass plantings, this shrub features a fantastic evergreen fragrance that will fill you with delight. It grows quickly at a rate of two feet per year to form an upright, uniform shape. Junior Giant grows in zones 5-9 and is cold hardy down to -10°F; it is a lover of heat and humidity and will adapt well to any location. As a bonus, it is incredibly deer resistant and drought tolerant. Junior Giant Arborvitae is perfect for creating the serene privacy you want. You can also plant these shrubs in a container, ideal for framing entryways, or for use for balcony or terrace privacy!

Junior Giant Arborvitae Care

This Arborvitae will do well in full sun and partial shade. It prefers moist, well-drained soil but can adapt to many different soil types. Choose a planting site away from any low utility lines or overhanging structures. Once planted, water often and deeply for a few weeks to help the root system grow, and then water twice a week. After it is well established, about a year, natural rainfall should be enough to keep it watered. Nitrogen is one of the most essential nutrients to aid in evergreen growth, so fertilize in the early spring after the last hard frost has passed and before new growth begins. Use a nitrogen-rich fertilizer and water thoroughly. Make sure not to fertilize your plant during hot or dry weather. 

Start lightly trimming and shaping your Arborvitae directly after planting. Light trimming encourages a dense growth pattern and will increase the amount of foliage. Incredibly low maintenance, Junior Giant will only need pruning in late winter or early spring to promote new growth. Remove dead or damaged branches anytime of year as needed. Prune to create a conical shape, as having an oversized top will inhibit the amount of sunlight that reaches the lower branches. Trim the branches horizontally, and only trim branches with evidence of new growth; branches without new growth are done growing and will not grow back.

Junior Giant Arborvitae Spacing

Junior Giant Arborvitae will reach a height of 15-20 feet and a width of 8-10 feet. Plant this shrub in holes twice the size of the root ball, 10 feet apart. Fill in the hole with soil while leaving the shrub's crown to sit above the soil.

Junior Giant Arborvitae Information

USDA Hardiness Zones: 5 - 8
Plant Type: Bushes
Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
Mature Height: 15 - 20 Feet
Mature Spread: 8 - 10 Feet
Spacing: 8 - 10 Feet
Habit: Upright
Flower Color(s): None
Flower Description:
Bloom Period:
Foliage Type: Evergreen
Foliage Color(s): Green
Foliage Description:
Seasonal Interest: N/A
Watering: Low
Resists: Deer
Tolerates: Heat, Drought, Salt
Attracts: Birds, Hummingbirds
Container Role:
Uses: Hedges & Privacy
Features: Attracts Pollinators, Foliage Interest, Low Maintenance
Common Name: Junior Giant Arborvitae
Other Name(s):
Scientific Name: Thuja X 'Junior Giant'

Container Sizes

Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on; type of plant, time of year, last pruning & many other factors.

4.5 Pot

4.5" Pot
 Also Know As:
   4.5" Container

 Plant Age:
   ~ 6 months
 Plant Size:
   ~ 3"-6"
 Pot Size:
   ~ 4.5"H x 3.75"W
   1.42 quarts

Quart Pot

Quart Pot
 Also Know As:

 Plant Age:
   ~ 1 year old
 Plant Size:
   ~ 4"-8"
 Pot Size:
   ~ 4.75"H x 4.5"W
   1.50 quarts

2.5 Quart

2.5 Quart
 Also Know As:
   2.5 Quart Pot

 Plant Age:
   ~ 1.5 year old
 Plant Size:
   ~ 8"-12"
 Pot Size:
   ~ 6.5"H x 6.5"W
   2.20-2.30 quarts

#1 Pot

#1 Pot
 Also Know As:
   #1 Container
    1 Gallon
 Plant Age:
   ~ 2 year old
 Plant Size:
   ~ 10"-14"
 Pot Size:
   ~ 7"H x 7.75"W
   2.26-3.73 quarts

#2 Pot

#2 Pot
 Also Know As:
   #2 Container
    2 Gallon
 Plant Age:
   ~ 2-3 year old
 Plant Size:
   ~ 12"-18"
 Pot Size:
   ~ 9.5"H x 9.5"W
   1.19-1.76 gallons

#3 Pot

#3 Pot
 Also Know As:
   #3 Container
    3 Gallon
 Plant Age:
   ~ 3-4 year old
 Plant Size:
   ~ 12"-30"
 Pot Size:
   ~9.5"H x 11"W
   2.32-2.76 gallons

For more detailed information, please click here.

Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether you’re new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and we’ll get you a new one shipped out. We may ask for photos for documentation purposes but again we’ll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

Guide: How to Care for Your New Plant(s)

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations

Plant Shipping

Time of Order:

Summer Shipping

  • If there is extreme heat we’ll delay shipping.  
    • We’ll have to review what areas the plants are traveling through along with your location

Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.

It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.