Nobilis Blue aloe clump of thick blue-grey toothed rosettes with orange-red flower heads in a rock garden

Nobilis Blue Aloe

Aloe perfoliata (syn. Aloe nobilis)
Categories:
Cacti & Succulents  ·  
Aloe
Light
Full sun (afternoon shade in low desert)
Water
Low water once established; water deeply, then let soil dry thoroughly. Water sparingly during extreme summer heat and cool winter weather; never keep roots continuously moist.
Size
1-2 ft tall × 2-3 ft wide
Habit
Clustering succulent
Toxicity
Toxic — Pets
Description
A clumping aloe with thick, blue-green leaves and pale marginal teeth. Identified here as Aloe perfoliata, also called mitre aloe; the trade name ‘Nobilis Blue’ may be used inconsistently.
Bloom Time
Summer
Deciduous / Evergreen
Evergreen
Special Features
Architectural Form, Attracts Hummingbirds, Drought Tolerant
Growth Rate
Slow
Growth Habit
Clustering succulent
Mature Size
1-2 ft tall × 2-3 ft wide
Flower Color
Orange-red
Foliage Color
Blue-gray
Landscape Use
Border / Bed, Cactus / Succulent Garden, Container / Patio, Desert / Xeriscape
Garden Style
Container / Patio, Desert / Xeriscape, Pollinator / Wildlife
Soil
Sandy / Rocky, Well-Drained
Companion Plants
Blue elf aloe, Elephant bush, Golden barrel cactus, Red yucca
Toxic — Pets
Toxic to pets if ingested
Care Instructions

Light: Morning sun with afternoon shade in Phoenix; avoid intense reflected heat and prolonged summer afternoon sun.

Water: Low water once established; water deeply, then let soil dry thoroughly. Water sparingly during extreme summer heat and cool winter weather; never keep roots continuously moist.

Soil: Very well-drained, gritty or gravelly soil. Use raised beds or containers with drainage holes where native soil drains poorly.

Mature size: Approximately 1–2 feet tall and 2–3 feet wide; older colonies can spread farther through offsets and trailing stems.

Bloom: Typically blooms in summer once mature; flowering varies with growing conditions.

Evergreen / deciduous: Evergreen.

Growth rate: Slow to moderate.