| Mature Height: | 30-50 ft. |
| Mature Width: | 12-15 ft. |
| Sunlight: | Full Sun, Partial Shade |
| Growth Rate: | Fast Growing |
| Botanical Name: | Thuja plicata x standishii 'Green Giant' |
| Does Not Ship To: | AK, AZ, HI, OR |
| Grows Well In Zones: | 5-8 outdoors |
Growing Zones: 5-8 outdoors
Thuja Green Giant Arborvitae
Fast-growing Thuja Green Giant creates a lush privacy screen, growing 3–5 ft per year. Drought tolerant, disease resistant, easy to grow, and space-saving.
1. Planting: This is a large landscape tree and as such, requires a bit of planning before planting. First, measure the area where you would like to plant your hedge or row. You will need the length of the area of planting to estimate the number of trees you need.
When planting, dig a hole for each tree that is three times as wide as the root ball but just as deep. Place the tree, fill in around the tree with the same soil you took out when initially digging the hole. Finally, tamp down as you fill to cut back on any air pockets from forming, water the tree, then mulch to conserve moisture.
2. Watering: For the first two weeks, water your new tree every other day by holding a hose around it and counting to 20. If you don’t have a hose, 2 large watering cans full of water will do (smaller trees may only need a light soaking so a single can may suffice).
During the second two weeks, switch to watering every three days with the same method mentioned above. After the first month, water once a week unless it is dry and hot (no rain and temperatures above 80 degrees). If it is hot and dry, water twice a week. After the first year, the trees will be established and won’t need any extra water. Your natural rainfall should be sufficient at this stage.
3. Fertilizing: For optimal growth feed your Thuja ‘Green Giant’ with a balanced evergreen tree and shrub fertilizer starting in the spring.
4. Pruning: You won’t have to prune this tree if you are growing it with enough space for it to maintain its naturally graceful pyramid shape. If you’re growing several close together as a hedge, you can shear the plants yearly after the final frost.
FGT Tip: Possibly the best feature of this evergreen is that deer don’t favor the taste. If you live in an area with heavy deer pressure, spray your Thuja Green Giants every 3 to 6 months with deer repellent. That’s all the protection you need.
Thuja Green Giants can grow to 30-50 ft tall, depending on their planting formation and growing conditions.
For a tight hedge, plant your Thuja Green Giants 5 feet from one another and other structures. Spacing them 8-10 feet apart is recommended for areas with more room, and will still provide privacy and height.
It normally takes an average of 3 years for Green Giant Arborvitaes to get established in your yard, and around 10 years to be considered mature. However, they can continue to grow beyond the 10 year mark.
During the second two weeks, switch to watering every three days with the same method mentioned above. After the first month, water once a week unless it is dry and hot (no rain and temperatures above 80 degrees).
After the first six months, the trees will be established and won’t need any extra water. Your natural rainfall should be sufficient at this stage.
Left unpruned, Thuja Green Giants planted in rows can reach as high as 30 to 50 feet. Your Thuja foliage will stay soft and thick all year long.
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