Rose of Sharon [Pink Giant] Hibiscus syriacus Pink Giant = 'Flogi'

Water

The Rose of Sharon 'Flogi' should be watered deeply, ensuring the soil is moist to a depth of at least 8 inches, which typically requires about 1 to 1.5 gallons of water per plant. During the first growing season, it's crucial to maintain a regular watering schedule, watering it once or twice a week, depending on rainfall and temperature. Reduce the frequency to every two weeks once the plant is established, especially in the absence of rainfall. During dry spells or extreme heat, increase watering frequency. Always check the soil moisture level before watering to prevent overwatering.

Light

Rose of Sharon 'Flogi' thrives best in full sun to partial shade. Ideally, it should receive at least six hours of direct sunlight daily, which promotes optimal blooming and healthy growth. If possible, situate the plant in a well-lit spot that is protected from intense afternoon sun to prevent potential leaf scorch.

Temperature

Rose of Sharon 'Flogi' is hardy and can withstand a range of temperatures, typically thriving in zones 5 through 8. The ideal growing temperatures are between 60 to 80 degrees Fahrenheit. However, it can survive minimum winter temperatures down to around -20 degrees Fahrenheit and can withstand summer heat above 90 degrees Fahrenheit provided it has adequate moisture.

Pruning

Prune Rose of Sharon 'Flogi' to maintain shape and promote vigorous growth, removing any dead or damaged branches. The best time to prune is late winter or early spring before new growth begins. The plant can be pruned annually to encourage bushier growth and more flowers. Deadheading spent blooms throughout the growing season can also promote further flowering.

Cleaning

As needed

Soil

The Rose of Sharon (Hibiscus syriacus 'Flogi') thrives best in well-draining, loamy soil enriched with organic matter. A pH level of 6.0 to 7.5 is ideal. A mix of two parts garden soil, one part peat moss, and one part perlite or sand can create the optimal growing medium.

Repotting

Rose of Sharon generally does not require frequent repotting and can be repotted every 3-5 years, or as necessary when rootbound.

Humidity & Misting

Rose of Sharon tolerates a wide range of humidity levels but prefers a moderate to high humidity environment for optimal growth.

Suitable locations

• Indoor

  Ensure bright light, pot in well-draining soil.

• Outdoor

  Plant in full sun, enrich soil, water well.

• Hardiness zone

  5-8 USDA

Life cycle

The Hibiscus syriacus Pink Giant ('Flogi'), commonly known as the Rose of Sharon, begins its life cycle as a seed, which, once sown and germinated in spring, sprouts into a small seedling. The seedling develops into a young plant with characteristic leaves, and as it matures, it undergoes vegetative growth, producing woody stems and more foliage. During its growing season, typically in summer, the Rose of Sharon's distinctive large pink flowers blossom, attracting pollinators for sexual reproduction. Following pollination, the plant forms dry fruits (capsules) that contain seeds, which are dispersed by wind or wildlife, completing its reproductive cycle. The Rose of Sharon can also spread asexually through cuttings or layering. As a perennial, it enters a period of dormancy in winter, losing its leaves, only to regrow them in the spring and start the cycle anew.

Propogation

• Propogation time

  Spring-Early Summer

• Propogation: The Rose of Sharon 'Pink Giant' or Hibiscus syriacus 'Flogi' is typically propagated through semi-hardwood cuttings during late summer. The most popular method involves taking a cutting of about 4 to 6 inches (10 to 15 centimeters) in length from a healthy, disease-free branch. The leaves on the lower half of the cutting should be removed and the cut end can be dipped in rooting hormone to encourage root development. This treated cutting is then placed in a well-draining potting mix and kept moist under high humidity, often with the aid of a plastic covering to retain moisture. Roots generally form within a few weeks, after which the young plant can be gradually acclimatized to less humid conditions before being planted out in the garden in the following spring.