Actual size and flowering may vary slightly based on season.
Goliath Aloe
Goliath Aloe is a very large tree aloe, a garden cross of the South African tree aloe and a Madagascar aloe. It grows a single slim trunk topped by a big head of heavy, arching green leaves, about 8 to 12 feet tall. From late fall into winter it sends up salmon to orange flower spikes. It is planted as a specimen, a centerpiece for a large yard.
Best for: a specimen tree aloe for a large yard, salmon to orange flowers from late fall into winter, and a tall accent on low water.
It grows a single, slim, unbranched trunk with a large head of heavy green leaves. At 8 to 12 feet tall, it is planted as a specimen or centerpiece.
Salmon to orange flower spikes rise above the leaves from late fall into winter. Hummingbirds visit aloe flowers like these.
It is drought tolerant once rooted and needs only occasional water. Give it a spot with room for a head about 4 to 5 feet wide.
It is rated to only about 25 to 30°F, so it needs cover in hard frost. Soggy soil can rot the roots, so plant it where water drains away.
- Plant to plant5 ft apart
Skip water for a few days to a week after planting so the roots can heal. Then water to get it rooted, never leaving the soil soggy.
Once rooted, water only now and then, about every 2 weeks in the warm months. Let the soil dry between drinks.
It is rated to about 25 to 30°F. On frosty nights, drape frost cloth or a sheet all the way to the ground, not plastic, and take it off in the morning. A tree canopy nearby also helps.
It grows as a single trunk with a heavy head of leaves 4 to 5 feet wide. Give it room, and cut dead flower stalks after bloom.
Drainage test first. Dig the hole and fill it with water. If water is still sitting in the hole a day later, you likely hit caliche, clay or hard soil, so fix the drainage before planting. If it drains very fast, the soil is sandy. Standing water around roots is a common reason new plants fail.
Weed cloth. Cut it away from the planting hole and where the roots will spread. Remove any plastic sheeting completely, since it keeps water and air out of the soil.
Rock or decomposed granite with no soil underneath. Bring in soil close in texture to your native soil, mix it with the soil below, and build up enough depth for roots before planting.
If you can break through. Use a breaker bar, pick, or jackhammer. Dig through the caliche and break out the solid chunks. Backfill with the soil you dug out, with no compost or manure in the hole. Confirm drainage before planting.
If you cannot break through. Dig narrow holes through the hard layer beside the root ball, not under it, and refill them with the same soil, not gravel. If it still will not drain, plant on a low mound of the same soil.
Root ball. Check the outside edges for any roots circling around. Loosen or cut those so they grow outward. Do not break up the center of the root ball.
Depth. The top of the root ball should sit at or just slightly above the surrounding soil level. Planting too deep can lead to rot and kill the plant.
Drip emitters. At planting, put the emitters on the root ball, on different sides of the plant. After about 2 months, move them to the outer edge of the root ball. Over the first year, add emitters farther out toward the edge of the branches as roots grow. Once a plant is rooted, never water only at the trunk.
How tall does Goliath Aloe get?
It grows about 8 to 12 feet tall. The head of leaves spreads about 4 to 5 feet.
What is Goliath Aloe a cross of?
It is a garden cross of Aloe barberae, the South African tree aloe, and Aloe vaombe from Madagascar.
Does it branch like other tree aloes?
No. It grows as a single unbranched trunk with one big head of leaves.
When does it bloom?
It blooms from late fall into winter. The flower spikes are salmon to orange.
Does it bring hummingbirds?
Yes. Hummingbirds visit aloe flowers, and Goliath's salmon spikes draw birds.
Does it need full sun?
It is grown in full sun. In the Valley, most aloes look better with some afternoon or filtered shade in summer.
How often should I water it?
Once rooted, only now and then, about every 2 weeks in the warm months. Let the soil dry between drinks.
How cold hardy is Goliath Aloe?
It is rated to about 25 to 30°F. On colder nights, drape frost cloth or a sheet over young plants, not plastic. A tree canopy nearby helps.
Is it toxic to pets?
Yes. Aloe is toxic to dogs, cats and horses. Chewing the leaves can cause vomiting, diarrhea and lethargy.
Goliath Aloe or Hercules Aloe?
Both are crosses of Aloe barberae. Hercules branches into a tree, while Goliath stays on a single trunk with heavier, arching leaves.
Goliath Aloe for sale in Arizona, delivered to you
Goliath Aloe is a garden cross of the South African tree aloe, Aloe barberae, and Aloe vaombe from Madagascar. It grows into a single-trunk tree aloe with salmon to orange flowers in the cool season. Below is what to expect in a Valley yard, from size and sun to water, cold and flowers.
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Goliath Aloe, a giant tree aloe cross
Goliath Aloe is a garden cross of Aloe barberae and Aloe vaombe. It grows a single slim trunk and a large head of heavy, arching leaves. It reaches about 8 to 12 feet tall.
How big does Goliath Aloe get?
It grows about 8 to 12 feet tall with a head about 4 to 5 feet wide. Plant it where it has room to stand alone.
When does Goliath Aloe bloom?
It blooms from late fall into winter. The spikes are salmon to orange. Hummingbirds visit aloe flowers in the cool season.
Sun and water for Goliath Aloe in Phoenix
It is grown in full sun, in soil that drains well. Most aloes in the Valley look better with some summer afternoon shade. Water about every 2 weeks in the warm months once rooted.
Is Goliath Aloe cold hardy?
It is rated to about 25 to 30°F. Cover young plants with frost cloth or a sheet on colder nights. A tree canopy overhead is often enough cover for many aloes.
Goliath vs Hercules Aloe
Both have Aloe barberae as a parent. Hercules branches as it grows. Goliath stays on one trunk with heavier leaves.
We deliver across the Valley, from Phoenix, Scottsdale and Mesa out to San Tan Valley, Maricopa and Casa Grande, and up to Prescott, Sedona, Payson and Globe. See delivery areas and rates.