cactus succulent

Gentry's Agave

Agave macroculmis

The Story

Plant Bio

Agave macroculmis is a succulent perennial with rosettes of bluish-green, fleshy leaves that have spiny margins and a terminal spine, forming a robust, upright clump. It produces tall flower stalks with yellow-green flowers.

This species is distinguished by its relatively large size among agaves and its ability to adapt to a range of soil conditions, making it suitable for xeriscaping and drought-tolerant gardens.

Uses & Benefits:

Ornamental UsesStriking rosette shape adds architectural interest to xeriscape and desert gardens.
Practical UsesRequires minimal watering, making it ideal for water-wise landscapes.
Ecological BenefitsProvides habitat for native insects and small birds.

Essentials

At a Glance

Plant Type

Cactus Succulent

Height

36 inches

Width

48 inches

Light

Full Sun

Zones

8, 9, 10

Water

Low

Humidity

Low

Lifespan

Many decades

Native To

Mexico

Toxicity

Sap is a skin irritant; toxic if ingested

Bloom period

Late summer – Late fall

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F
M
A
M
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In flower about 4 months of the year

Planting

How to Grow

  1. Tuck well-draining soil around roots
  2. Plant in full sun for optimal growth
  3. Water sparingly after planting, then once a month
  4. Fertilize with cactus or succulent mix in spring
  5. Mulch lightly to retain moisture
  6. Protect from frost in colder zones for winter

Pro Tip

Use gritty, well-draining soil and avoid overwatering to prevent rot.

Keep It Thriving

Care Guide

Do

  • Water deeply but infrequently 🌱
  • Provide full sun for healthy growth
  • Use cactus fertilizer in spring

Don't

  • Avoid overwatering ❌
  • Don’t place in shade
  • Don’t disturb roots unnecessarily

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Pest Check
Plant
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Arid, spiny succulent borderDrought-tolerant rock gardenSculptural focal point

Multiply

Propagation Methods

Good to Know

Common Questions

Gentry's Agave questions

What zones can Gentry's Agave grow in?

Gentry's Agave is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Gentry's Agave deer resistant?

Not reliably. Deer may browse Gentry's Agave, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Gentry's Agave bloom?

Gentry's Agave typically blooms in late summer through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Gentry's Agave need full sun?

Gentry's Agave does best in full sun (6+ hours).

Is Gentry's Agave drought tolerant?

Yes — once established (usually after the first full season), Gentry's Agave handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

Keep exploring

Grow Gentry's Agave with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.