Concord Grape
This grape is considered by most to be North America's favourite all-purpose grape since 1849, when Ephraim Bull selected it out of 22,000 wild grape seedlings that he had planted in Concord, Massachusetts. Concords make excellent grape jelly and also are versatile in use as a wine, table or juice grape. These productive and vigorous vines produce medium sized clusters of large blue/pruple grapes.
Harvest time is Late September-Early October
Canadian Hardiness Zone:
4
Pollination:
Self-pollinating.
Soil pH for optimal growth:
5.5 to 7.0
Fertilizer:
apply a small amount of 10-10-10 fertilizer two to three weeks after planting, keeping it one foot away from the vine's base. Increase the amount in the following years before bud swell in the spring. Test the soil periodically (3-5 years) and keep soil pH at 5.0-7.0.
Pruning:
Early winter (late Nov/Dec) is the main pruning time. Pruning later than this can cause the cuts to bleed sap, which can weaken the plant. Sap starts to flow earlier in greenhouse grapevines, so it’s particularly important to complete their pruning in early winter. In sites prone to spring frosts, you could consider delaying pruning until early spring
Spring and summer – train and trim back new shoots, and thin out the fruit if necessary
Pruneing:
Early winter (late Nov/Dec) is the main pruning time. Pruning later than this can cause the cuts to bleed sap, which can weaken the plant. Sap starts to flow earlier in greenhouse grapevines, so it’s particularly important to complete their pruning in early winter. In sites prone to spring frosts, you could consider delaying pruning until early spring
Spring and summer – train and trim back new shoots, and thin out the fruit if necessary