Rainwater Harvesting, a Green Alternative to Watering Plants
Rainwater harvesting is the collection, storage, and use of rainwater. Water harvesting can help you save money on monthly water bills and reduce your dependence on municipally supplied water. A […]
Hamelia patens is the July Plant of the Month!

Hamelia patens, Firecracker bush, Fire bush, small- to medium-sized, perennial shrub The multi-trunk evergreen matures quickly up to six feet tall and wide with bright green foliage that has a […]
Plumbago is the June Plant of the Month!
Plumbago auriculata, Plumbago, me dium-sized shrub The evergreen is admired for its brilliant sky blue flowers with a loose, sprawling growth habit and grows four to six feet tall and […]
Gold Star is the May Plant of the Month!

Tecoma stans ‘Gold Star’, Yellow bells, Gold star esperanza, medium- to large-sized, perennial shrub The lush, broadleaf evergreen grows quickly to four to five feet with a three to four-foot […]
Tucson Lifestyle Magazine featured Horticulture Unlimited!

As you may remember from November, Horticulture Unlimited was the proud recipient of several ALCA awards for our work on residential and commercial landscapes. Although we’ve won many ALCA awards […]
Bottle Brush is the April Plant of the Month!

Callistemon citrinus, Lemon bottlebrush, Crimson bottlebrush, small- to medium-sized tree The lemon bottlebrush is a good choice for smaller areas since it grows to twelve feet with a six- to […]
Growing citrus

Citrus trees have been a commercial crop in Arizona for more than one hundred years, but are popular in the home garden, too. Our weather produces some of the best-tasting […]
Gopher plant is the March 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 […]
Powdery Mildew on Ornamentals
Powdery mildew is a common disease that appears as a dusty or powdery white or gray fungus. It is one of the oldest plant diseases on record. The fungus covers the […]
Texas Root Rot
Texas root rot is a soil-borne disease caused by the fungus Phymatotrichum. The disease occurs most commonly in June through September and affects more than two thousand species of ornamental […]