Agave Varieties

4. Plant Description and Characteristics

Agave ovatifolia is a large succulent perennial that forms a majestic rosette. Mature plants can reach up to 6 feet (1.8 meters) in height and 8 feet (2.4 meters) in width. The growth habit is slow and steady, with the plant gradually increasing in both size and grandeur over many years if undisturbed. The leaves are a striking blue-grey color, often described as glaucous, offering a hazy, frosted appearance. They are thick, fleshy, and broad, ranging from 2 to 3 feet (0.6 to 0.9 meters) in length and 1 foot (0.3 meters) wide. Their shape is typically broad and ovate (egg-shaped), narrowing slightly towards the base. The margins are smooth, lacking teeth or spines except for a small, sharp terminal spine at the apex of each leaf, which is usually brownish-red. As the plant ages, the leaves gently curve, adding to their graceful form. Following flowering (which occurs only once in its lifetime after several decades), the parent plant dies, but often produces offsets (pups) at the base before its demise. These offsets are essentially clones of the parent plant. The striking color of the leaves, combined with their unique form and the plant’s eventual flowering stature, truly make this agave a standout specimen. The lack of prominent teeth or spines along the margins makes it a relatively forgiving agave to manage in landscaping; its overall form looks striking and contrasts any other landscaping scheme nicely.

4. Plant Description and Characteristics

Agave ovatifolia ‘Giant’ is a striking, large succulent. It has a mature size is notable – reaching up to 5-6 feet (1.5-1.8 meters) in height and 7-8 feet (2.1-2.4 meters) in width. It has a rosette formation. The characteristic leaves, which give the plant its common name, are broad, thick, and gently curved, resembling a whale’s tongue. The leaves are a stunning blue-gray color, often with a glaucous (waxy) coating that reflects sunlight. Their margins (edges) are typically smooth, though young plants may exhibit small, sharp points that are lost as the plant matures. The leaves are relatively flexible and robust. There are no prominent markings or variegation. As the plant matures, typically after several decades, it produces a massive flower stalk, which can reach up to 15 to 20 feet (4.5 to 6 meters) in height. The stalk is highly branched, producing clusters of yellow flowers. The plant is monocarpic, meaning it dies after flowering, but it usually produces many offsets (pups) before it dies, ensuring continuation. The overall size and striking blue-gray hue of the leaves are the primary distinctive features setting Agave ovatifolia ‘Giant’ apart from many other agave species and cultivars. It has a unique shape and size, allowing it to make a strong statement in a cultivated environment.

4. Plant Description and Characteristics

Agave pachycentra displays a distinctive architectural form.

• Size and Growth Habit: At maturity, it forms a tight, symmetrical rosette that typically grows to a height of 1-2 feet (30-60 cm) and a width of 1-2 feet (30-60 cm). The plant’s compact and dense growth makes it a great point of interest in smaller spaces.

4. Plant Description and Characteristics

• Leaf Characteristics: The leaves are a striking blue-green color, often with a glaucous (waxy) coating that protects the plant from excessive sun and water loss. They are lanceolate (lance-shaped to linear-shaped) with a pronounced, somewhat recurved shape. The margins of the leaves can be armed with sharp, reddish-brown spines, though sometimes the spines are less prominent in certain specimens. These spines are a key defense mechanism against herbivores. The tips of the leaves also terminate in a sharp terminal spine.

4. Plant Description and Characteristics

Agave parrasana is a slow-growing, symmetrical succulent plant. Its leaves are thick, fleshy, and lanceolate (lance-shaped), gradually curving inwards. They are typically a striking blue-grey color, sometimes tinged with red or purple, especially in cooler conditions. The margins of the leaves are lined with stout, dark reddish-brown to black teeth and end in a sharp, terminal spine. The tightly-packed, near-perfectly symmetrical rosette and the distinctive blue-grey coloration with contrasting spines make Agave parrasana a highly sought-after plant, providing visual intrigue. In addition, the tightly formed spherical head differentiates it from many other agaves.

4. Plant Description and Characteristics

Agave parryi subsp. parryi is a striking and imposing succulent, forming a symmetrical rosette that exudes a sense of bold design. Its leaves, a captivating gray-green, often display a subtle bluish or silvery hue, adding to their visual appeal. Each leaf is a work of art, varying in shape from the lance-like to the egg-like (ovate), with a slightly cupped profile, offering a sense of dynamic texture. The margins of the leaves are often lined with small, reddish-brown teeth, culminating in a formidable, sharp terminal spine. The overall effect is a plant that is strikingly architectural and robust, creating a strong visual impact.

4. Plant Description and Characteristics

Agave parryi var. couesii forms a striking, symmetrical rosette, typically reaching a mature height and width of 2 to 3 feet (60 to 90 cm). Its distinguishing features include: the leaves that are thick, fleshy, and lance-shaped, exhibiting a beautiful silvery-blue or glaucous color. The leaf margins are lined with sharp, reddish to dark brown teeth-like spines. A robust, dark brown terminal spine, or "apical spine," crowns its leaf display. The leaves curve gracefully adding to the plant’s elegance. Its compact size and the intense silver-blue hue of its leaves are the primary characteristics setting this variety apart from other Agave parryi varieties, such as Agave parryi var. huachucensis and Agave parryi var. parryi.

4. Plant Description and Characteristics

This is where Agave nizandensis displays its true beauty. The leaves are generally lanceolate (lance-shaped) and arranged in a tightly packed rosette. They are a striking shade of bluish-green to gray-green, often acquiring a yellowish hue when grown in full sun. The leaves are fleshy and leathery in texture. The margins of the leaves are armed with reddish-brown spines that are relatively small and not as formidable as some other agave species. The tips of the leaves terminate in a sharp, brown terminal spine. The rosette is a medium size, typically reaching up to a meter in height and spread, forming a solitary display.

4. Plant Description and Characteristics

The Huachuca Agave is a visually striking plant with a symmetrical rosette shape. Its captivating form, with its broad, gray-blue leaves and formidable spines, makes it an iconic choice for xeriscaping and garden designs.

4. Plant Description and Characteristics

Agave nussaviorum is a relatively compact agave, forming symmetrical rosettes. Its standout features are its vibrant, blue-green leaves with a waxy bloom. They are lanceolate (lance-shaped) and slightly recurved, adding to the plant’s elegant form. The margins are lined with small, reddish-brown teeth, and the terminal spine is sharp and also reddish-brown; these characteristics, especially the spine, are crucial for protection from herbivores in its wild habitat.