Wholesale deciduous

Blackberries

Rubus spp. (blackberry cultivars)

Also known as Rubus fruticosus · Blackberry canes

The most realistic of the three wholesale cane-berry groups for the low desert, provided its roots stay evenly moist and its fruiting canes are protected from brutal western sun.

EdibleWholesale deciduousBrambleTrellisablepH 5.6–6.5

Landscape layersUnderstory

Mature size

A managed row about 4–6 ft tall; allow 6–10 ft of trellis length as vigorous canes develop

Climate fit

Urban core · USDA 9b–10a · Valley suburbs · USDA 9a–9b · Desert outskirts · USDA 8b–9b · High desert · USDA 6a–8b

Special categories

POLLINATOR ATTRACTING · EDIBLE

Hardiness guidance

Program selections are best suited to USDA zones 6–9; zone 9b–10a requires a carefully protected low-desert microclimate.

Typical harvest

Usually May into June in the low desert; later with elevation. Second-year floricanes carry the main crop.

Required soil pH

5.6–6.5 target

Before you plant

These conditions determine whether it will thrive.

Soil chemistry

5.6–6.5 target

Use a soil test before planting. Build a deep, well-drained, organic-rich bed; high-pH calcareous soil can lock up iron and zinc, while excessive sulfur or salty compost can burn roots.

Required microclimate

Placement is part of the growing system.

In Phoenix and Tucson, choose an east- or north-facing exposure with morning sun, afternoon shade, no reflected west-wall heat, good airflow, and a permanently mulched root zone. Full western exposure is a poor bet even when the plant survives.

Cold hardiness

Hardy here

Canes can be damaged by winter lows of 0°F to -5°F, far colder than Phoenix. Blossoms are hurt below 26°F, and dry spring winds can damage fruiting canes.

Blossoms and fruit: below 26°F

Heat tolerance

Shade from late-afternoon sun

Fruit ripens in early May and finishes before peak heat, but late berries can sunburn. Plant where they get afternoon shade, ideally on an east side.

Sources:

extension.arizona.edu , pubs.nmsu.edu , extension.arizona.edu

Right plant, right place

Will Blackberries grow at your Arizona property?

Blackberries are the safest starting point among these wholesale berries for a low-desert property. Give them a dedicated amended strip or raised bed, dependable irrigation, afternoon protection, and access for annual cane removal.

Best regional fit: Urban core · USDA 9b–10a, Valley suburbs · USDA 9a–9b, Desert outskirts · USDA 8b–9b, High desert · USDA 6a–8b.

Light

Sun exposure

Low desert: morning sun with filtered or full afternoon shade. Above roughly 2,500 ft: full sun is more realistic, with wind and late-frost protection.

Water

Irrigation

Keep the root zone evenly moist but never waterlogged. Deep mulch is essential; drip irrigation may need to run daily or every other day during establishment and fruiting heat.

Fruit set

Pollination

Self-fruitful. Bees improve fruit set and berry development; nearby compatible blackberry cultivars can lengthen and diversify the harvest.

Harvest

How to use it

Harvest only when berries turn dull black and release easily. Eat fresh, freeze, bake, or preserve as jam and syrup.

Choose the actual plant, not only the label

Cultivars & selections

The current wholesale program offers Black Satin and Triple Crown. Both are thornless, but Triple Crown is the stronger first choice for a protected low-desert garden; Black Satin becomes easier as summer temperatures moderate or elevation increases.

Black Satin

Rubus 'Black Satin'

Mature sizeSemi-erect 5–8 ft canes; train across a sturdy trellis

Best forThornless access, large fruit, and protected moderate-summer or shaded zone-9 sites

A vigorous thornless selection with large sweet-tart berries. It needs more afternoon protection than Triple Crown in the hottest Valley locations and should not be placed against a heat-radiating west wall.

Triple Crown

Rubus 'Triple Crown'

Mature sizeVery vigorous semi-erect 8–15 ft canes; allocate a long trellis row

Best forFlavor, productivity, thornless harvest, and the stronger heat tolerance of the current wholesale pair

The better low-desert candidate of the two when supplied with rich soil, thick mulch, consistent irrigation, and filtered afternoon shade. Tip and train its long new canes rather than letting the row become an inaccessible thicket.

Planting & stewardship

How to help Blackberries thrive

1
Test soil pH and drainage before planting; target 5.6–6.5 and avoid a perched, waterlogged root zone.
2
Plant dormant canes from late January through March and mulch the full row several inches deep without burying the crowns.
3
Keep young plants and ripening fruit consistently moist; irregular watering produces weak growth and small or damaged berries.
4
After harvest, remove the floricanes that just fruited at ground level and retain healthy new primocanes for next year.
5
Use shade cloth or a structure to protect fruit from late-season sunburn while preserving airflow around the canes.

Read the horticultural reference ↗