Sky flower is the Plant of the Month!

*Duranta erecta, Sky flower, Golden dewdrop, medium-large shrub Sky flower is a showy evergreen that grows eighteen feet tall and wide, if it doesn’t freeze back. It is a multi-trunk […]
Bougainvillea is the Plant of the Month!

*Bougainvillea hybrids, Bougainvillea, vines and climbers, shrub Bougainvillea is a sprawling vine grown for its beautiful flower bracts in fuchsia, pink, orange, rose, white, or purple, depending upon the variety. […]
Wildflowers are the April Plant of the Month!

“Flowers are sunshine, food, and medicine to the soul.” —Luther Burbank California poppies growing along Interstate 8, outside of the Arizona state line. One of the first signs of spring […]
Euphorbia rigida is the February Plant of the Month!

*Euphorbia rigida, Gopher plant, perennial, succulent This mounding evergreen grows to about two feet tall with a three-foot spread, and has attractive, narrow, pointed, blue-green, sharp leaves. It produces rounded […]
Annuals and Perennial Flower Color

Annual and perennial flowers provide a lot seasonal color. They are a quick and easy way to add beauty, color, and visual effects to any landscape palette. Flowers used in […]
Pyracantha coccinea is the December Plant of the Month!

Pyracantha coccinea, Firethorn, Scarlet firethorn, vine and climbers-Amazing winter color plant. The evergreen, noted for its spectacular display of orange-red berries and shiny, brown bark, climbs to ten feet tall […]
Horticulture Unlimited Receives 2016 Excellence in Landscaping Awards from ALCA!

Horticulture Unlimited is honored to have been chosen as the recipients of several Excellence in Landscaping awards by the Arizona Landscape Contractors’ Association. The association awards program is one of […]
Salvia leucantha is the November Plant of the Month!

Salvia leucantha, Mexican bush sage The colorful herbaceous plant grows in a mounded shape to four feet tall and wide with willowy, slender, arching stems that have soft, grayish-green to […]
Fertilization of Plants
Landscape plants require ample nutrients to thrive. While Southwest desert soils provide some adequate nutrients and minerals, many plants require additional amounts of nitrogen, phosphorus and potassium. Nitrogen produces the […]
Euphorbia resinifera is the August Plant of the Month!

Euphorbia resinifera, Resin spurge, Moroccan mound This low-growing succulent has erect, thick, bluish-green to lime green, four-sided stems with small brown thorns, reaching one to two feet with a three- […]