The Q&A Archives: Glenora Grapevine

Question: Recently I purchased a seedless Glenora Blue grape vine. How do I plant it? How do I growit? Does it need special care? Do I need more than just 1 vine?

Answer: Glenora is a mid-season, medium sized grape, with tender skin. It is self-fruitful and will produce fruit without a second grapevine.

The first step to consistent production of high-quality grapes is choosing a sunny location. Frosty areas should be avoided, because new shoot growth in April and May is very tender to frost. Sites sheltered from wind and open to the south are usually warmer.

Soil should be free of perennial weeds and be well tilled before planting. Organic matter should be incorporated into heavy soils to improve aeration and fertility. Fertilizer is generally not needed at planting time as it will promote excessive shoot growth, leggy canes, and delay fruit maturity.

Set plants in a hole large enough to spread roots without bending them, and to the same depth as grown in the nursery.For most of thee common training systems, a trellis support system is required. Grape plants growth to become very heavy with wood and fruit so a trellis must be strong and well braced. Most post and wire trellises are made with treated wood and with wires (number 12 gauge or heavier) as need by whatever system is selected for training.

The object of training the young vine is to obtain a vigorous top and a well-established root system. The strongest shoot that grows from the newly planted vine should be selected and trained to twine or wire. Other shoots that should be cut back.Grapes can be trained on walls, fences and arbors. The plants make attractive ornamentals and provide shade. To train grapes onto an arbor, prune the vines less severely and let long canes cover the arbor. Leave more buds per plant, which means fruit quality may be lower. Training several different-colored table grapes to an arbor is very attractive.

Irrigate young plants as needed by drip or flood technique the first year - as needed the 2nd year. Avoid overhead irrigation during the fruiting period as this promotes fruit rots. Mature plants usually don't need watering as they establish roots as deep as 30 feet.

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