The Neon Flash Spirea, also known as Spiraea japonica 'Neon Flash', is a deciduous shrub valued for its vibrant pink flowers and its ease of care. Here are some key features of the Neon Flash Spirea:

1. Appearance: Neon Flash Spirea is a compact, mounded shrub that typically reaches a height and width of about 2 to 3 feet. It has a dense growth habit with arching branches and oval-shaped green leaves. The foliage may take on a reddish hue in the fall, adding further ornamental interest.

2. Flowers: In late spring to early summer, Neon Flash Spirea produces clusters of bright pink flowers that cover the branches, creating a stunning visual display. The flowers are attractive to butterflies and other pollinators.

3. Hardiness: Neon Flash Spirea is hardy in USDA zones 4-9, making it suitable for a wide range of climates. It is tolerant of various soil types and environmental conditions but prefers well-drained soil.

4. Sunlight: This shrub thrives in full sun to partial shade. While it can tolerate some shade, it will produce the best flower display in full sun.

5. Landscape Use: Neon Flash Spirea is a versatile shrub that can be used in a variety of landscape settings. It works well as a border plant, in mass plantings, or as a low hedge. It can also be planted in mixed perennial beds or used as a foundation planting.

6. Maintenance: Neon Flash Spirea is relatively low-maintenance. It benefits from regular watering, especially during hot, dry periods, but is tolerant of occasional drought once established. Pruning can be done in late winter or early spring to maintain shape and remove any dead or damaged wood. This shrub can also tolerate hard pruning if necessary to rejuvenate growth.

Overall, the Neon Flash Spirea is prized for its vibrant pink flowers, compact size, and ease of care, making it an excellent choice for gardeners looking to add color and beauty to their landscapes with minimal effort.