The 'Jetstream' hydrangea is a variety of Hydrangea quercifolia, commonly known as Oakleaf hydrangea. Here's some information about the 'Jetstream' hydrangea:

1. Appearance: 'Jetstream' hydrangeas are deciduous shrubs with a rounded growth habit, reaching a height and spread of 5 to 6 feet. They feature large, elongated panicles of pink flowers that bloom from mid-summer to fall. The flowers have a cone-shaped appearance when they first emerge, gradually turning white as they mature. The oak leaf shaped leaves are to die for in the Autumn.

2. Hardiness: 'Jetstream' hydrangeas are typically hardy in USDA hardiness zones 5 to 8, making them suitable for a wide range of climates. They are known for their tolerance to cold temperatures and ability to withstand harsh winter conditions.

3. Sunlight: 'Jetstream' hydrangeas prefer full sun to partial shade. While they can tolerate some shade, they tend to produce more blooms in full sun conditions. However, in hotter climates, they may benefit from some afternoon shade to protect them from intense sunlight and heat.

4. Soil: These hydrangeas prefer moist, well-draining soil that is rich in organic matter. They can tolerate a range of soil types, including loamy, sandy, or clay soils, as long as the soil is well-draining. Adding organic mulch around the base of the plant can help retain moisture and regulate soil temperature.

5. Watering: 'Jetstream' hydrangeas have moderate water needs and should be watered regularly, especially during hot, dry weather. It's important to water deeply to encourage deep root growth and ensure adequate moisture penetration into the soil.

6. Pruning: Pruning 'Jetstream' hydrangeas is generally done in late winter or early spring before new growth emerges. Dead or damaged branches can be removed at any time of year. To encourage abundant flowering, some gardeners choose to prune back the stems to about one-third of their height each year.

7. Fertilizing: These hydrangeas benefit from regular fertilization with a balanced, slow-release fertilizer formulated for flowering shrubs. Fertilizer can be applied in early spring before new growth begins and again in mid-summer to support ongoing growth and flowering.

8. Uses: 'Jetstream' hydrangeas are versatile shrubs that can be used in various landscape settings. They make excellent focal points in mixed borders, foundation plantings, or mass plantings. They can also be grown in containers on patios or decks.

Overall, the 'Jetstream' hydrangea is prized for its showy pink flowers, attractive foliage, and easy care requirements. With proper planting and maintenance, it can be a stunning addition to any garden or landscape.