tall verbena

Tall verbena (Verbena bonariensis 'Buenos Aires') prefers soil that is consistently moist but not soggy. During the summer growing season, it should be watered regularly, at least twice weekly and more in hot, dry weather. In winter when it is dormant, water should be reduced, to once or twice a month or when the soil has become nearly dry. When watering, a long and thorough soak is best, to ensure that the entire root zone is getting wet. Never leave the soil soggy or overly wet for extended periods as this can lead to root rot.

Tall verbena (Verbena bonariensis 'Buenos Aires') does best in an area of full sun with at least 6-8 hours of direct sunlight each day. The plant can tolerate partial shade but may not flower as much in locations that lack some of the necessary sunlight. The best time for sunlight for tall verbena is in the morning and early afternoon, when the sun is not too harsh and the plants will not be blasted with intense heat. In areas with strong afternoon sun, it is wise to provide some afternoon shade in order to prevent the plant from becoming stressed. In a climate with very strong sunlight, it is best to provide some additional shade for tall verbena in order to extend the life of the plants.

It is best to prune tall verbena (Verbena bonariensis 'Buenos Aires') at the end of the growing season before the first frost. This will remove any dead or diseased growth and will also control the size and shape of the plant. The amount of pruning will depend on the overall size and health of the plant and desired shape. Start by removing any dead or dying stems and then lightly prune back the remaining stems to about 3-4 feet tall. This will encourage new growth and result in a bushier plant. It may also be necessary to cut back some of the stems to the base of the plant if they become too long and leggy. Pruning should be done regularly throughout the growing season to keep the plant looking its best.