Horticulture Unlimited Inc.

Plant Guide

Blue Barrel Cactus
Blue Barrel Cactus

Ferocactus glaucescens

This barrel cactus is about two feet tall and wide with a globular shape and a greenish-blue skin. As the plant matures, it may produce multiple heads and forms a large mound. It has thick, whitish-gray spines that are d…

Blue Candle
Blue Candle

Myrtillocactus geometrizans

This columnar, architectural, tree-like specimen grows to fifteen feet with a candelabra form. Its spiny green stems are thick and heavily ribbed. It has radial and central spines that fill each areole. When the plant is…

Blue Elf Aloe
Blue Elf Aloe

Aloe ‘Blue Elf’

This tight-clumping, dwarf aloe offers a dense rosette and grows to eighteen inches tall and two feet wide. It is mainly stem-less with narrow, silvery-bluish-gray leaves that grow upright. There are small, sharp teeth a…

Blue Glow Agave
Blue Glow Agave

Agave ‘Blue Glow’

Blue Glow is a hybrid that produces a glow-like appearance in bright sunlight. It grows two feet tall and wide, forming a single rosette with a clumping growth habit. This agave is a cross between Agave ocahui and Agave…

Blue Ice Agave
Blue Ice Agave

Agave colorata

This agave is admired for its striking, broad, powder blue leaves with distinct impressions and spiny brown teeth along the margins. The plant grows in a tight rosette to heights of two to four feet tall and wide. After…

Blue Nolina
Blue Nolina

Nolina nelsonii

The stunning, architectural beauty resembles the yucca species, developing a ten- to twelve-foot trunk and large rosette of foliage. It is one of the larger plants found in the Nolina genus. As the plant matures, it may…

Blue Palo Verde Tree
Blue Palo Verde Tree

Parkinsonia florida

Blue palo verde tree is easily distinguished by its blue-green bark and brilliant yellow flower display. It can grow to 25 feet tall with a 25 foot spread. Its tiny leaves are cold and drought deciduous but, due to its b…

Blue Yucca
Blue Yucca

Yucca rigida

This yucca is a valued plant for desert gardens because of its stiff, flat, powdery blue leaves. It is a tall plant that grows moderately to twelve feet with an eight-foot spread. As the plant matures, the trunk may deve…

Boojum tree
Boojum tree

Fouquieria columnaris

The distinguished, rare, and slow-growing tree has an unusual growth habit and appearance with its tall and upright stature. It grows to fifty feet tall and ten to fifteen feet wide. This desert accent plant produces no…

Bottle Tree
Bottle Tree

Brachychiton populneus

The bottle tree is a fast-growing evergreen with poplar-like, dark green, dense, pointed foliage. It has a broad trunk that tapers into a pyramidal shape when young. As it matures, the trunk widens and has the ability to…

Bougainvillea
Bougainvillea

Bougainvillea Hybrids

Bougainvillea is a sprawling vine grown for its beautiful flower bracts in fuchsia, pink, orange, rose, white, or purple, depending upon the variety. Inside the center of each flower bract is a small white, waxy flower.…

Bower Vine
Bower Vine

Pandorea jasminoides

The sprawling evergreen with twining stems climbs to twenty feet with pointed, dark glossy green foliage with divided leaves and woody stems. A variegated form has green leaves with white edges. In the spring and continu…

Bush Lantana
Bush Lantana

Lantana camara

The lantana is a prolific bloomer growing two to four feet tall and wide with sprawling branches that produce dramatic color during the warm season. The foliage is green, rough, and sometimes has prickly stems and leaves…

Butterfly Agave
Butterfly Agave

Agave potatorum

The short-growing plant forms an interesting symmetrical rosette and well-defined leaves reaching one to two feet tall and two feet wide. It is usually stem-less and solitary in its growth habit. Butterfly agave has smal…

Candelabra Aloe, Torch Aloe
Candelabra Aloe, Torch Aloe

Aloe arborescens

This decorative aloe is armed with many sharp, dense teeth along its margins. It is an upright plant with dark green foliage growing four to six feet tall with an equal spread. This aloe can be kept as a low rambler or t…

Candelabra Cactus
Candelabra Cactus

Myrtillocactus cochal

The large, sprawling cactus is admired for its funnel-shaped, ivory flowers, and reaches heights of eight to ten feet tall and wide. It has multiple, dark green branches with a very woody trunk. The branches have six to…

Candelilla
Candelilla

Euphorbia antisyphilitica

The low-growing shrub has clusters of thin, upright, bluish-green, pencil-like stems that grow in clumps to about three feet. The flowers are small, pinkish-white and occur in clusters on mostly leafless stems in spring…

Cape Aloe
Cape Aloe

Aloe ferox

This common tree-type aloe is an impressive desert accent plant noted for its medicinal qualities and reaches heights of ten feet or more, with a three- to four-foot spread. It forms a dense clump of bluish-green, fleshy…

Cardon Grande
Cardon Grande

Echinopsis terscheckii

One of the largest of the Echinopsis species, this fast-growing, attractive, columnar cactus reaches heights of twenty-five feet or more. Mature plants will develop branches or side arms that are ten inches in diameter a…

Caribbean Agave
Caribbean Agave

Agave angustifolia var. marginata

This agave forms a dense rosette of sword-shaped, greenish-blue foliage reaching three to five feet tall and six feet wide. It has been cultivated for hundreds of years, and was used for fiber and as a food crop. In the…