Ozothamnus 'Silver Jubilee' Ozothamnus rosmarinifolius 'Silver Jubilee'

Water

For the Sea Rose, also known as Ozothamnus rosmarinifolius 'Silver Jubilee', it is vital to establish a watering routine that considers the plant's preference for well-drained soils and semi-arid conditions. Water the Sea Rose deeply but infrequently, allowing the soil to dry out between waterings. In general, aim for approximately one gallon of water per week, adjusting for rainfall and temperature, which may increase the plant's water needs during hot, dry periods. During winter or cooler months, reduce the amount of water to prevent root rot.

Light

The Sea Rose thrives best in full sun exposure where it can receive at least six hours of direct sunlight daily. It is well-suited to a spot in the garden that is open and not shaded by taller plants or structures, as ample sunlight is crucial for its growth and flower production.

Temperature

The Sea Rose prefers temperate climates and can survive in temperatures ranging from 20°F to 90°F, but it thrives best in the range of 60°F to 80°F. While the plant is frost-tolerant, prolonged exposure to severe cold below 20°F can damage or kill the plant, so it is essential to provide protection or consider moving it to a sheltered location if extreme cold is expected.

Pruning

Pruning the Sea Rose is mainly done to maintain its shape and encourage dense growth. Prune lightly in the late winter or early spring before the new growth starts. This helps to remove any dead or damaged stems and promotes a robust flush of new growth. Additionally, you can deadhead spent flowers to encourage further blooming.

Cleaning

As needed

Soil

Sea rosemary grows best in a well-drained, sandy to loamy soil with a pH between 6.0 and 7.5. A mix of 1/3 sand, 1/3 garden soil, and 1/3 compost or peat can create ideal conditions. Avoid waterlogged environments to prevent root rot.

Repotting

Sea rosemary plants should generally be repotted every 2 to 3 years to refresh the soil and accommodate root growth. It's best to repot in spring or early summer before the peak growth period.

Humidity & Misting

Sea rosemary thrives in moderate to low humidity environments and does not require high humidity to grow healthily. Average indoor humidity levels are typically adequate for this plant.

Suitable locations

• Indoor

  Bright indirect light and well-draining potting mix are essential for growing sea rosemary indoors.

• Outdoor

  Plant in full sun to partial shade, well-draining soil; protect from harsh winter.

• Hardiness zone

  8-10 USDA

Life cycle

Ozothamnus rosmarinifolius 'Silver Jubilee', commonly known as Sea Rosemary, begins its life cycle as a seed, which upon germination develops into a seedling with basic root, stem, and leaf structures. As it grows, the seedling enters the vegetative stage, where it develops a robust woody stem and needle-like leaves, characterized by their silver-gray foliage. During the flowering stage, typically in spring or summer, Sea Rosemary produces clusters of small, button-like white or cream flowers, which are attractive to pollinators. After pollination, the flowers develop into fruits that release seeds, completing the reproductive cycle. The plant reaches maturity within a few years, at which point it can be pruned to maintain its shape and encourage denser growth. Sea Rosemary is a perennial shrub and can live many years, going through cycles of growth, flowering, and seed production annually.

Propogation

• Propogation time

  Spring-early summer

• Propogation: Ozothamnus rosmarinifolius 'Silver Jubilee', commonly known as Sea Rosemary, is typically propagated by semi-hardwood cuttings. This popular method involves selecting healthy, semi-ripe stems from the current season's growth in late summer to early fall. Cuttings should be about 4 to 6 inches (approximately 10 to 15 centimeters) long and have several leaves. The lower leaves are removed, and the base of the cutting is dipped in a rooting hormone to encourage root development. The prepared cuttings are then inserted into a well-draining propagation medium such as a mix of perlite and peat. They should be placed in a warm, humid environment, but out of direct sunlight, and kept moist until roots have developed, which usually takes several weeks. Once rooted, the new plants can be gradually acclimatized to outdoor conditions before being planted out in their final positions.