Pollination Information for Jetstream Oakleaf Hydrangea (Hydrangea quercifolia 'PIIHQ-I')

Jetstream Oakleaf Hydrangea is a deciduous shrub that produces showy white flowers from late spring to early summer. The flowers are clustered in large, cone-shaped panicles and are a favorite of pollinators, including bees and butterflies.

The shrub is self-fertile, meaning it does not need another plant to cross-pollinate in order to produce fruit. However, cross-pollination from another Jetstream Oakleaf Hydrangea or another Hydrangea quercifolia cultivar can increase fruit set.

The fruit of the Jetstream Oakleaf Hydrangea is a dry capsule that contains tiny seeds. Birds and other wildlife may eat the fruit, dispersing the seeds and aiding in the plant's reproduction.

Jetstream Oakleaf Hydrangea prefers well-drained soil and partial shade. It is hardy in USDA zones 5-9 and can grow up to 6-10 feet tall and wide.

Jetstream Oakleaf Hydrangea (Hydrangea quercifolia 'PIIHQ-I') FAQ

General Information

What is the Jetstream Oakleaf Hydrangea?

The Jetstream Oakleaf Hydrangea (Hydrangea quercifolia 'PIIHQ-I') is a deciduous shrub that is native to the southeastern United States. It is part of the hydrangea family, and is known for its large, cone-shaped blooms and oak-like leaves.

What are the characteristics of the Jetstream Oakleaf Hydrangea?

• Size: 5-8 feet tall, 5-6 feet wide
• Growth Rate: Slow to moderate
• Blooms: Large, cone-shaped blooms in summer; white turning to pink
• Foliage: Oak-like leaves that turn burgundy in fall
• Soil: Well-drained, acidic soil
• Sunlight: Partial shade to full sun
• Hardiness: USDA zones 5-9

Planting and Care

When should I plant the Jetstream Oakleaf Hydrangea?

Fall is the best time to plant the Jetstream Oakleaf Hydrangea. Planting during this time allows the shrub to establish a strong root system before the hot summer months.

What kind of soil does the Jetstream Oakleaf Hydrangea need?

The Jetstream Oakleaf Hydrangea prefers well-drained, acidic soil with a pH level between 5.0-6.5. Adding organic matter such as compost or peat moss to the soil can help improve drainage and acidity.

How much sunlight does the Jetstream Oakleaf Hydrangea need?

The Jetstream Oakleaf Hydrangea can tolerate partial shade to full sun, but prefers partial shade. Too much sunlight can cause the leaves to scorch, while too little sunlight can result in poor bloom performance.

How often should I water the Jetstream Oakleaf Hydrangea?

The Jetstream Oakleaf Hydrangea prefers moist soil, but does not tolerate standing water. Water the shrub deeply and regularly, especially during hot, dry periods. Avoid wetting the leaves, as this can lead to disease.

How often should I fertilize the Jetstream Oakleaf Hydrangea?

Fertilize the Jetstream Oakleaf Hydrangea in early spring with a slow-release, balanced fertilizer. Avoid fertilizing in late summer or fall, as this can stimulate new growth that may not harden off before winter.

Pruning and Maintenance

How should I prune the Jetstream Oakleaf Hydrangea?

The Jetstream Oakleaf Hydrangea should be pruned in late winter or early spring, before new growth begins. Prune away any dead or damaged wood, as well as any crossing or rubbing branches. To encourage fuller growth and larger blooms, prune back the shrub by about one third.

How should I protect the Jetstream Oakleaf Hydrangea in winter?

The Jetstream Oakleaf Hydrangea is hardy to USDA zones 5-9, but may need protection in colder regions. Apply a layer of mulch around the base of the shrub in late fall to insulate the roots. Cover the shrub with burlap or a frost blanket to protect it from harsh winter winds and freezing temperatures.

Planting and Care Guide for Jetstream Oakleaf Hydrangea

Planting Jetstream Oakleaf Hydrangea

• Choose a location that receives partial shade (morning sun with shade in the afternoon is ideal)
• Ensure the soil is well-draining and rich in organic matter
• Dig a hole twice as wide and just as deep as the plant's root ball and loosening the soil at the bottom
• Gently remove the plant from its container and loosen any tangled roots
• Place the plant in the center of the hole and backfill with soil, gently tamping it down as you go
• Water thoroughly and add a 2-3 inch layer of mulch around the plant to conserve moisture and suppress weeds

Caring for Jetstream Oakleaf Hydrangea

• Water regularly during the first growing season to establish a strong root system
• After the first year, the plant will become more drought-tolerant but still appreciates consistent moisture
• Fertilize in early spring with a balanced fertilizer such as 10-10-10
• Prune in late winter or early spring before new growth appears to remove any dead, damaged, or crossing branches and maintain the plant's shape
• Occasionally thin out older branches to encourage new growth and increase air circulation
• Monitor for pests and diseases, particularly powdery mildew, and treat promptly if needed

Harvesting and Using Jetstream Oakleaf Hydrangea

• The flowers of Jetstream Oakleaf Hydrangea are attractive both fresh and dried
• Harvest blooms when they are fully open and allow to dry in a warm, dry place for several weeks
• Use dried flowers in wreaths, arrangements, or as natural decorations
• Fresh flowers can be used in floral arrangements or enjoyed in the garden as a cut flower