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Havard's century plant
Also known as: Harvard agave
Havard's century plant is a unique and striking plant that is native to the southwestern United States and northern Mexico. This plant is known for its impressive size and architectural structure, with long, stiff leaves that grow in a rosette formation. Its leaves have sharp, pointed tips and are adorned with sharp, saw-like edges that can be dangerous if handled carelessly. The plant is also known for its dramatic flowering display, which occurs after many years of growth. When it blooms, a tall, impressive flower stalk emerges from the center of the plant and is covered in small, yellow-green flowers that attract pollinators like bees and hummingbirds.
Scientific classification
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Perennial
Lifespan
Succulent
Plant Type
30 cm to 91 cm
Plant Height
Blue, Green, Gray, Silver
Leaf Color
White, Yellow, Green
Flower Color

Images of Havard's century plant

Quickly Identify Havard's century plant

1
Stout, short, broad silver-gray leaves
2
Prominent dark brown marginal and terminal spines
3
Tight rosette, 2-3 feet (60-90 cm) tall
4
Yellow-green flowers on tall, branched spike
5
3-4 feet (90-120 cm) wide succulent plant
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Care Guide for Havard's century plant

Every 3 weeks
Water
Full sun
Sunlight
5 - 35 ℃
Ideal Temperature
Succulent & Cactus Soil
Soil Type
Water: Havard's century plant thrives in arid environments with strong drought tolerance, requiring minimal watering every three weeks. As an evergreen, it retains leaves year-round, which helps conserve water even in extreme conditions.
Fertilize: Fertilize havard's century plant monthly during the growing season (spring to summer) using a 3:3:2 nitrogen, phosphate, and potassium ratio. Use low-concentration liquid or compound fertilizers, avoiding fertilization in late fall and early winter as growth slows and dormancy may occur.
Pruning: Havard's century plant thrives with early spring pruning; remove damaged leaves to prevent pests and promote growth. Avoid excessive pruning to minimize stress. Post-bloom, trim flower stalks for aesthetics and seed control. Regularly clear debris for better appearance and health, ensuring a robust plant.
Propagation: Havard's century plant is primarily propagated through division during growing seasons or repotting. Shoots with roots can be potted directly; others need to heal before planting. Propagation by seed is less common due to slow growth, requiring cross-pollination and a 10-day germination period.
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