Aloe Species, Flat-flowered Aloe, Mountain Aloe

Aloe marlothii

Family
Asphodelaceae (as-foh-del-AY-see-ee)
Genus
Aloe (AL-oh)
Species
marlothii (mar-LOTH-ee-eye)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Evergreen
This plant is resistant to deer
Height
8-10 ft. (2.4-3 m)
Spacing
4-6 ft. (1.2-1.8 m)
Hardiness
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Parts of plant are poisonous if ingested
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Orange
Red-Orange
Gold (yellow-orange)
Bloom Time
Mid Winter
Other Details
Category
Alpines and Rock Gardens
Perennials
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Bag seedheads to capture ripening seed
Regional

This plant is said to grow outdoors in the following regions:

Apache Junction, Arizona

Carefree, Arizona

Gilbert, Arizona

Mesa, Arizona(2 reports)

Phoenix, Arizona(2 reports)

Tucson, Arizona(2 reports)

Bostonia, California

Calistoga, California

Casa de Oro-Mount Helix, California

El Macero, California

Fresno, California

Hayward, California

Long Beach, California

Los Angeles, California

Mission Viejo, California

Reseda, California

San Leandro, California

Sebastopol, California

Simi Valley, California

Spring Valley, California

Thousand Oaks, California

Upland, California

Visalia, California

Vista, California(9 reports)

Orlando, Florida

Metairie, Louisiana

show all

Featured Videos

Gardener's Notes:

7
positives
1
neutral
0
negative
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P
Phoenix, AZ | January 2015 | positive

Central Phoenix -- My Aloe marlothii is about 15 years old, having replaced one that was killed by the power company while trimming the n...Read More

B
| September 2008 | positive

Mighty, hardy, undemanding, always impressive. Mine are just about to start trunking but they grow very well down here in New Zealand an...Read More

B
Hayward, CA | February 2007 | positive

Here in the bay area they do very good, if a little slow growing. As they get a few feet of trunk and bloom, marlothii's are stand out pl...Read More

R
R
Spring Valley, CA (Zone 10a) | September 2005 | positive

This plant is a single-trunked tree Aloe that can eventually get to 20 feet with age. The leaves are large, heavy, and very spiney along...Read More

P
Acton, CA (Zone 8b) | July 2003 | positive

This is one of the more impressive Aloes to be grown in the xeriscape gardens of the southwest. It is NOT a user-friendly species as its...Read More

L
L
| May 2003 | positive

There are white and coral flowered forms of the species too. All Aloe species hybridize easily, garden seed is unreliable if more than on...Read More

W
Seward, AK (Zone 3b) | January 2003 | neutral

Flat-flowered Aloe is native to South Africa where it grows on rocky slopes at at medium altitude. The gray-green leaves of this succulen...Read More

B
| January 2003 | positive

Orgin: Botswana; Transvaal; Natal

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