Photo Courtesy of Dummen

Helichrysum petiolare 'Silverstar'


Silverstar is a great flower to add to any floral environment. Its high versatility makes it a wise choice for hanging baskets or in a patio container combination. Create beautiful potted combinations or use as accent plants in your garden landscape. Silverstar has a spread of 16-20 inches and has an optimal height of 8-12 inches.

Silverstar features wonderful silver foliage. These blooms will last all season long. The ability to thrive in full or part sun, complement many other plants or flowers, or simply stand alone makes it a great choice for your home and garden.

Height: 8-12 in

Spread: 16-20 in

USDA Zone: Zones 9 - 11

Interesting Notes:

Helicrysum is a semi-trailing, warm weather annual and tender perennial. Helicrysum Silverstar, also known as the licorice plant, has super silver-hued foliage. This tender perennial is native to southern Africa where it survives as a tough, compact shrub. The unique coloration of this plant provides a cool backdrop for pastels and contrasts well with jewel toned blooms and foliage. Silverstar leaves are either oval or heart-shaped, and their trailing stems are branched, forming spreading mounds. Their papery blooms will last through spring and summer, and can persist through the winter in most locations.

Silverstar is a semi-trailing plant, featuring striking silver foliage. This variety is a medium compact flower bred by Westflowers. It is commonly used in hanging baskets, as ground coverage, or in patio containers. The taller and fuller varieties go nicely as mixed fillers in the garden. Silverstar grows best in moist, fertile, well-drained soil, and is a full to partial sun exposure flower. Unique features of this variety include spectacular silver foliage and papery-like flowers. Key features of Helicrysum Silverstar are heat and drought tolerance, no deadheading required, and deer resistance.

Growing Tips for Homeowners:

As with every plant purchase, it is important to look for quality at the start! During the purchasing process, be sure to avoid plants that look exhausted. Finding a fresh young plant, without discolored foliage is very important. Look for rich silver green foliage and healthy vibrant colors as indication of the plant's care thus far. This will ensure an easy start for you, and a long life for your plant.

After locating and purchasing a quality plant at the store, it is important to find the perfect place for it at your home. Silverstar is a full sun annual that thrives in the heat. The best time for planting your flower is mid-spring or early summer, after the threat of frost has passed. Be careful not to take your plant outside too early in the spring. If there is still a chance of frost in your area, keep your plant safe indoors, maintaining care in the container. Silverstar will last from late spring, through the summer, until the finish of fall. They are good pioneer plants in the garden, until other plants become more established.

Helicrysum Silverstar is a low maintenance plant that is heat tolerant. Water application a few times a week is still recommended, and fertilizer or compost application will ensure optimal plant performance. Be sure to apply low to the ground, near the plant’s main stem, avoiding wetting the plant’s foliage, for quick absorption and utilization. Remember to ensure good drainage in both containers and landscaping, to prevent diseases like root rot. Drainage holes, elevated flower gardens, and proper soil composition are three great ways to prevent root rot and help your plants maintain a healthy moisture level. 

Another great feature of Silverstar is their bloom production. These beauties will continuously bloom all season. While the plant does not require deadheading, if your plants start to look messy, feel free to trim them back to keep them tight and well-shaped. After pinching back, your plant should begin to bloom again within 1–2 weeks.

Preparing the ground for your plants is always an important key to maintaining healthy plants. Pests like slugs and snails are attracted to the environment created in flower gardens and landscaping. Prevention of these types of pests includes clearing the area of holes where such pests can live. Aphids and thrips may also pose a threat to your Helicrysum, but are usually taken care of by predator insects. These tiny pests usually hide on the underside of leaves and are difficult to see because of their small size. 

The earliest prevention against disease and pest threat is careful examination during the purchasing process. It is important to know the difference between harmful pests and beneficial insects. Some insects may lay their eggs on your plant’s leaves in order to feed on the pests, which is actually beneficial to your flower. Removal of the wrong eggs could potentially promote pest survival and growth. This variety is also resistant to deer.

Characteristics & Attributes:


Attributes:

  • No Deadheading
  • Great Foliage
  • Heat Tolerant
  • Fragrant
  • Drought Tolerant

Critter Resistance:

  • Deer Resistant

Design Use:

  • Window Boxes
  • Trellis / Wall
  • Hanging Baskets
  • Ground Cover
  • Texture
  • Container
  • Filler

Exposure:

  • Full Sun / Part Sun

Foliage Color:

  • Silver

Habit:

  • Semi Trailing

Season of Interest (Flowering):

  • Fall
  • Summer
  • Spring

Season of Interest (Foliage):

  • Summer
  • Spring
  • Fall

Soil Moisture:

  • Well Drained
  • Average