Ninebark Physocarpus opulifolius 'Chameleon'

Water

Ninebark 'Chameleon' prefers consistent moisture but is also drought-tolerant once established. During the first growing season, water the plant deeply once a week, providing about 1.5 gallons per watering to ensure a strong root system. Once established, watering can be reduced, and the shrub may only need supplemental watering during extended dry periods. Adjust watering frequency based on soil conditions and climate; well-drained soil and hot weather will necessitate more frequent watering. It is generally better to water deeply and less frequently to encourage deep root growth, rather than shallow and frequent watering.

Light

Ninebark 'Chameleon' thrives in full sun to partial shade. The ideal spot for this shrub is in a location that receives at least six hours of sunlight daily, which will ensure the best foliage color and flowering. However, it can also tolerate some shade, especially in hotter climates where some afternoon shade can prevent scorching. Avoid deep shade as it will lead to sparse growth and poor coloration.

Temperature

Ninebark 'Chameleon' is a hardy shrub that can withstand a wide range of temperatures. It can survive in temperatures as low as -30°F and as high as 100°F, making it suitable for many climates. The ideal temperature range for promoting healthy growth is between 60°F and 70°F. Extreme temperatures beyond these ranges may stress the plant but typically won’t be fatal as ninebark is quite adaptable.

Pruning

Ninebark 'Chameleon' benefits from pruning to maintain its shape and promote a robust structure. Prune the plant in late winter or early spring before new growth begins. Remove any damaged, diseased, or dead branches as well as any that are crossing or crowded to improve air circulation. Pruning can also rejuvenate older plants if they become woody and overgrown; in this case, prune up to one-third of the oldest stems down to the ground to encourage new growth.

Cleaning

As needed

Soil

Ninebark, including the 'Chameleon' cultivar, thrives best in well-drained soil enriched with organic matter. A good soil mix for Ninebark consists of garden soil, compost, and peat or leaf mold to enhance drainage and fertility. The ideal soil pH for 'Chameleon' Ninebark should range between 5.5 and 7.0 to ensure proper nutrient availability.

Repotting

Ninebark, such as the 'Chameleon' variety, typically do not require frequent repotting as they are grown in outdoor landscapes. However, if planted in containers, repotting every 2-3 years or when the plant becomes root-bound is adequate for maintaining its health and vigor.

Humidity & Misting

Ninebark 'Chameleon' is tolerant of a wide range of humidity levels and does not require specific humidity conditions for optimal growth. It can grow well in the ambient outdoor humidity commonly found in its growing zones.

Suitable locations

• Indoor

  Ensure bright light, ample space, and good air flow.

• Outdoor

  Choose sunny spot, mulch well, water deeply.

• Hardiness zone

  2-8 USDA

Life cycle

The Ninebark 'Chameleon' begins its life as a seed that germinates in spring when soil temperatures warm and sufficient moisture is available. The seedling stage involves the emergence of the first leaves and roots as it establishes itself. As it progresses into the vegetative stage, the plant matures by developing a woody stem, extensive root system, and characteristic foliage that changes color from pink to green to yellow. During the reproductive stage, typically in early summer, Ninebark 'Chameleon' produces clusters of small, white to pinkish flowers which are attractive to pollinators. After the flowering stage, the plant develops small, red to purple fruits known as follicles, which eventually dry and split open to release seeds for dispersal. The plant then enters a period of dormancy during the colder months, which is a survival strategy to withstand winter conditions until the next growing season begins.

Propogation

• Propogation time

  Spring-Early Summer

• The Ninebark 'Chameleon' is most commonly propagated by softwood cuttings in late spring or early summer. This is when the plant’s new growth is mature enough but not yet fully hardened. For successful propagation, it is critical to take cuttings from healthy plants using a sharp, sterilized cutting tool. Cuttings should be about 4 to 6 inches (10 to 15 centimeters) long with several leaves left at the top. The bottom leaves are removed, and the cut end is often dipped in rooting hormone to encourage root development. The cutting is then placed in a well-draining medium, such as a mix of perlite and peat. It's essential to maintain high humidity and consistent moisture around the cuttings until roots are well established, which could take several weeks.