What To Plant Now For Year-Round Color In Arizona Landscaping
Successful year-round color in Arizona starts with choosing the right combination of structural plants, seasonal bloomers, and reliable evergreens tailored to your elevation and microclimate. This guide explains what to plant now, where to plant it, and how to sequence plantings so your landscape offers consistent interest through heat, monsoon, and winter. Expect practical, region-specific recommendations and clear maintenance steps to maximize flowering and minimize water use.
Understand Arizona’s Climate Zones and Timing
Arizona is not a single climate. Plant choices and timing depend on elevation, typical winter lows, and summer heat. Group your site into one of three broad categories before choosing plants:
Major Arizona planting regions
-
Low desert: Phoenix, Yuma, southwestern Tucson, elevations generally below about 3,000 feet. Summers are very hot; winters are mild to warm. Heat-tolerant and drought-adapted species are essential.
-
Transition zone: Higher Tucson, Prescott, Payson, elevations roughly 3,000 to 5,000 feet. Summers are warm but not as extreme; winters produce occasional light freezes.
-
High desert / mountain: Flagstaff, Pinetop, elevations above 5,000 feet. Cooler summers and cold winters with regular freezes and snow; select cold-hardy perennials and shrubs.
Plant “now” means different things by season. If you are in the low desert, fall (September-November) and late winter/early spring are the best times to establish most shrubs, trees, and perennials. In transition and high-elevation areas, late spring after the last hard frost and early fall are ideal. This article provides both immediate-plant options and seasonal plans to ensure color every month.
Design Principles for Continuous Color
Year-round color comes from layering four plant types: structural evergreens, long-season bloomers, seasonal perennials/annuals, and seasonal accent bulbs or deciduous trees that offer autumn color. Use staggered bloom times, mixed heights, and repetition of color to create continuity.
-
Structural backbone: evergreen trees and shrubs provide foliage color and winter interest.
-
Long-bloom shrubs: deliver sustained color for months at a time.
-
Seasonal perennials and bulbs: fill gaps with concentrated displays.
-
Annuals and containers: provide quick refreshes and pocket color during slow months.
Plants to Plant Now: By Region and Type
Below are practical plant options, with brief care notes and bloom windows. Choose based on your elevation and exposure.
Low Desert (Phoenix, Yuma, low-elevation Tucson)
-
Palo Verde (Parkinsonia spp.): Yellow spring bloom; excellent freeway-scale tree; full sun, very drought-tolerant. Plant in well-draining soil, minimal summer water once established.
-
Desert Willow (Chilopsis linearis): Pink to lavender tubular flowers all summer into fall; attracts hummingbirds. Needs full sun; tolerates heat and occasional irrigation.
-
Bougainvillea (Bougainvillea spp.): Intense color from spring through fall with periodic flushes; thrives in hot sun, minimal water once established. Plant slightly above grade with good drainage.
-
Lantana (Lantana montevidensis, Lantana camara): Continuous blooms from spring into fall; attracts butterflies. Use in beds or as groundcover; prune to shape after bloom flushes.
-
Salvia (Salvia spp., e.g., Salvia greggii and Salvias for low desert selections): Bloom spring through fall; drought-tolerant; plant where hummingbirds can enjoy them.
-
Gazania and Portulaca (annual succulent-type bedding plants): Summer color where many perennials decline; plant for immediate effect in full sun.
-
Bulbs: Winter/spring bulbs like Narcissus (daffodils) and Ranunculus can be planted in fall for late winter/early spring color in low desert gardens.
Transition Zone (Prescott, parts of higher-elevation Tucson)
-
Texas Sage / Cenizo (Leucophyllum frutescens): Purple-pink blooms, especially after humidity and monsoon storms; evergreen silvery foliage. Plant in sun with good drainage.
-
Autumn Sage (Salvia greggii, Salvia microphylla): Blooms intermittently most of the year; cut back hard in late winter to encourage spring flush.
-
Rockrose (Cistus spp.) and Rockroses (Cistus): Spring bloom, drought tolerant, evergreen in mild winters; good for slopes and poor soils.
-
Penstemon (Penstemon spp.): Spring and early summer bloomers, many cold tolerant types; prefer well-drained soil and some afternoon protection in hotter sites.
-
Spring and summer annuals: Snapdragons in cooler months, zinnias in summer for bright color.
High Desert / Mountain (Flagstaff, Pinetop)
-
Serviceberry (Amelanchier spp.): Early spring flowers, followed by edible berries and autumn color. Plant in sites with some winter chill.
-
Columbine (Aquilegia spp.) and delphinium in moist, part-shade sites: Spring and early summer bloomers adapted to cooler summers.
-
Penstemon (more cold-hardy species), lupine, and asters: Provide mid- to late-season color from spring through fall.
-
High-elevation perennials: Russian sage may struggle; instead use native shrubby asters, sagebrush cultivars, and cold-hardy salvias.
Seasonal Planting Calendar and Immediate Actions
Plant now actions vary by region. Use these practical steps to maximize establishment and early blooms.
-
Low desert (planting in fall): Plant trees and shrubs now through late fall so roots establish in cooler weather. Water deeply every 7-10 days for the first season, then reduce.
-
Transition zone (planting in early fall or spring): Plant shrubs and perennials in fall or spring; avoid peak summer heat. Mulch 2-3 inches to retain moisture but keep mulch away from trunks.
-
High desert (planting in late spring/early summer): Wait until after last hard freeze; plant in late spring to give roots the summer to establish before winter.
-
For instant color: plant container annuals and perennials now as fillers; they can be replaced seasonally.
Practical Planting and Care Tips
These specific practices increase survival and bloom performance.
-
Choose well-drained soil and amend sparingly. Arizona soils range from sand to heavier loams; most flowering shrubs and bulbs need good drainage.
-
Planting depth matters. Set plants at the same depth they were in the pot. For bulbs, follow depth guidelines: typically 2-3 times the bulb height.
-
Deep, infrequent watering encourages roots to go deep. New plantings: water deeply 2-3 times per week early on in hot months, then taper to weekly or less as established.
-
Apply slow-release fertilizer sparingly in spring to encourage blooms; avoid high-nitrogen feeds that promote leaf over flower.
-
Mulch against evaporation but keep it away from trunks to prevent rot. Use 2-3 inches of mulch in beds.
-
Prune smartly: deadhead spent flowers to encourage rebloom on many salvias and lantanas. Major pruning for many shrubs is best done in late winter or early spring.
Combining Plants for Year-Round Impact
Design a planting plan that repeats colors and textures so the eye always finds something blooming.
-
Sequence example for low desert: choose a backbone of evergreen palo verde plus Texas sage, interplant with bougainvillea and desert willow for long-season blooms, and fill gaps with lantana and salvias. Use winter bulbs and cool-season annuals (pansies, snapdragons) for December-March color.
-
Transition zone mix: evergreen cenizo and rockroses provide structure; penstemons and salvias supply spring and summer blooms; asters and mums add late-season color for fall.
-
High-elevation approach: early-blooming serviceberry and columbine, mid-season lupines and penstemons, late asters and goldenrods to carry color into fall.
Low-Water and Wildlife-Friendly Choices
To reduce water and increase wildlife value, prioritize plants that attract pollinators and birds.
-
Hummingbird magnets: Salvia species, Desert Willow, and Penstemon.
-
Butterfly hosts and nectar: Lantana, Buddleja (but check local invasive concerns), milkweed varieties adapted to elevation.
-
Native choices: Use native shrubs and perennials for best performance with minimal inputs–examples include Desert Marigold (Baileya), Creosote in appropriate elevations, and various native penstemons.
Troubleshooting Common Problems
-
Poor bloom in summer: Often the result of insufficient morning sun or overwatering. Check irrigation; cut back if soil remains soggy. Many desert-adapted bloomers prefer drier soils.
-
Leggy shrubs: Lightly prune after the main bloom cycle to encourage compact, repeat flowering.
-
Cold damage in unexpected freezes: Protect container plants and young shrubs with frost cloth and temporary mulch. Marginal plants may resprout from roots if not completely killed.
Final Takeaways and Action Plan
-
Start with a site assessment: note elevation, sun exposure, and soil drainage.
-
Plant a mix of structural evergreens, long-season shrubs, and seasonal perennials/annuals.
-
In the low desert, fall is prime for planting trees and shrubs; in high elevations, plan for late spring or early fall.
-
Focus on drought-tolerant, regionally appropriate species: Palo Verde, Desert Willow, Texas Sage, Salvias, Lantana, and appropriate bulbs.
-
Use deep, infrequent watering, mulching, and timely pruning to encourage blooms and conserve water.
Take one concrete step today: choose three structural shrubs or trees for your elevation and plant at least two spots with long-blooming perennials or container annuals to test microclimates. With layered plantings and proper timing, you can create vibrant, year-round color across Arizona landscapes while minimizing water and maintenance.