Best time to plant grapes in Arizona: October, March – April. Months to harvest: July – August.
Add peat moss, shredded bark or coco peat and sand in quantities up to 50 percent of total soil volume to minimize stress on root growth and allow excess water to drain away from plant roots. Worm castings added. Pine bark mulch.
It takes about 2 months before leaves come out. Leaves come from nodes. Takes longer for roots to form well enough to plant. (3-6 Months)
- Roots go 2 feet deep; plant in rich soil.
- Water slowly, deeply, and infrequently.
- Winter (below 70 degrees): water once every 7-14 days
- Spring and Fall (70-90 degrees): water once every 5-7 days
- Summer (90-110 degrees): water once every 3-5 days
- Extreme Heat (above 110 degrees): water every 1-3 days
. Fertilize mature grapes in February and May.
- Prune while dormant in the winter.
- Look out for Western grape leaf skeletonizer; use Bacillus thuringiensis (Bt.) on Amazon, to control.
- Provide support for growing grapes.
from 4 WildflowerRun: Concord Grape (Vitis labrusca ‘Concord) (Dark purple to black grapes)
from 3 Greenhouse pca: Thompson cuttings (yellow Grapes)