Species

perennial

Koehres form Rough Agave

The Story

Plant Bio

Agave asperrima, known as the Rough Agave, is a rosette-forming succulent with thick, spiny-edged leaves that display a bluish-gray hue, forming a striking architectural feature. It produces tall flower stalks with yellow blossoms.

The Koehres form of Agave asperrima is distinguished by its particularly robust, densely spined leaves and enhanced drought tolerance, making it an excellent choice for xeriscaping and low-water gardens.

Uses & Benefits:

Provides striking architectural form and texture in xeriscapes and modern gardens.

Requires minimal watering, making it ideal for water-wise landscaping.

Supports native pollinators attracted to succulent flowers.

SpeciesAgave asperrimaRough Agave

Essentials

At a Glance

Plant Type

Perennial

Height

42 inches

Width

60 inches

Light

Full Sun

Zones

8, 9, 10

Water

Low

Humidity

Low

Lifespan

Many decades

Native To

Mexico

Toxicity

Sap can cause skin irritation; sharp spines.

Bloom period

Summer – Late fall

In flower about 5 months of the year

Planting

How to Grow

Tuck seeds or offsets into well-draining soil
Water sparingly after planting, keep soil dry between watering
Place in full sun for optimal growth
Allow 6 weeks for roots to establish
Mulch lightly to retain moisture and regulate temperature
Avoid overwatering to prevent rot

Pro Tip

Ensure excellent drainage and avoid overwatering for healthy roots

Keep It Thriving

Care Guide

Do

Water sparingly during active growth 🌱
Use cactus or succulent fertilizer in spring
Provide full sun for best coloration

Don't

Overwater to prevent root rot ❌
Plant in heavy clay soil
Expose to excessive humidity

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Plant
Propagate
Spring Cleanup
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Sculptural desert borderDrought-tolerant rock gardenModern succulent container display

Companion Plants

Agave parryi Sedum spp.Echinocereus Yucca filamentosa Aloe vera

Multiply

Propagation Methods

Good to Know

Common Questions

Koehres form Rough Agave questions

What zones can Koehres form Rough Agave grow in?

Koehres form Rough 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 Koehres form Rough Agave deer resistant?

Yes — Koehres form Rough Agave is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Koehres form Rough Agave bloom?

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

Does Koehres form Rough Agave need full sun?

Koehres form Rough Agave does best in full sun (6+ hours).

Is Koehres form Rough Agave drought tolerant?

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