Wholesale deciduous

Flame Seedless grape

Vitis vinifera 'Flame Seedless'

Also known as Flame Seedless · Red Flame grape

An early red seedless table grape and consistent warm-climate producer, well suited to edible arbors when fruit receives irrigation and leaf shade.

EdibleSeedlessEarly harvestWholesale program

Landscape layersClimbing

Mature size

Train to a 10–20+ ft. trellis or arbor

Climate fit

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

Special categories

EDIBLE

Hardiness guidance

Best Arizona fit: zones 7–10

Typical harvest

Early season; often among the first program grapes to ripen

Before you plant

These conditions determine whether it will thrive.

Cold hardiness

Hardy here

A European grape, dormant to about 5°F, so winter is no issue in Phoenix. Budbreak comes early in spring, and new shoots can be burned near 30°F if a late frost follows (grape-wide figures).

Leaves and wood: damaged below 5°F · Blossoms and fruit: below 30°F

Heat tolerance

Takes full sun and heat

Needs a hot summer and ripens early, in June or July, ahead of the worst heat. It needs cool nights for full red color, and Phoenix nights are warm, so color can be light. Leave leaves over the clusters on a west wall to prevent berry sunburn.

Sources:

davewilson.com , extension.arizona.edu , aggie-horticulture.tamu.edu

Right plant, right place

Will Flame Seedless grape grow at your Arizona property?

One of the strongest low-desert candidates in the current wholesale program. Site it where its deciduous canopy provides summer shade and admits winter sun.

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

Full sun, with a retained leaf canopy protecting clusters from intense afternoon exposure.

Water

Irrigation

Moderate. Use deep, consistent irrigation through fruit development and avoid dramatic wet-dry swings.

Fruit set

Pollination

Self-fruitful

Harvest

How to use it

Sweet red seedless fruit for eating fresh, drying, juice, and summer snacks straight from the arbor.

Planting & stewardship

How to help Flame Seedless grape thrive

1
Establish the permanent framework before allowing a heavy crop.
2
Dormant-prune every winter and remove unwanted suckers through the growing season.
3
Maintain enough foliage around clusters to prevent sunburn.
4
Net or bag fruit before birds discover ripening clusters.

Read the horticultural reference ↗