‘Super Greg’ rosemary, a cultivar of Rosmarinus officinalis, offers beauty and utility in gardens. This aromatic herb is versatile, thriving while providing a pleasant, piney scent that enhances outdoor spaces.
Unique Characteristics of ‘Super Greg’ Rosemary
‘Super Greg’ rosemary stands out due to its distinctive prostrate or trailing growth habit, setting it apart from many upright varieties. This makes it well-suited as a groundcover or for spilling gracefully over containers, raised beds, and retaining walls. Mature plants typically reach 1 to 2 feet tall, with a spread up to 3 feet, creating a dense, aromatic mat.
While general rosemary is hardy in USDA Zones 8-10, ‘Super Greg’ can extend into Zone 7, or even Zone 6 with protection. Its needle-like foliage is dark green and highly fragrant, releasing a strong rosemary aroma when touched. Small blue flowers typically appear from late winter through early summer, attracting pollinators.
Essential Care for ‘Super Greg’ Rosemary
‘Super Greg’ rosemary thrives in full sun, needing at least six to eight hours of direct sunlight daily to maintain vigorous growth and dense foliage. Insufficient light can result in weak, spindly growth.
It prefers well-draining soil with a slightly acidic to neutral pH, ideally between 6.0 and 7.5. Heavy clay soils, which tend to retain excessive moisture, should be amended with organic matter like compost or coarse sand to improve drainage and aeration, preventing root rot. Rosemary is drought-tolerant once established, so deep, infrequent watering is recommended. Allow the soil to dry thoroughly between waterings, as consistently wet soil can lead to root rot. Young or newly planted rosemary may require more consistent moisture until their root systems are developed.
When it comes to fertilization, ‘Super Greg’ rosemary generally requires light feeding, as it thrives in relatively lean conditions. If growth appears slow or leaves show signs of paleness, a balanced, water-soluble fertilizer can be applied sparingly, usually in early spring. Over-fertilization, especially with high-nitrogen formulas, can lead to leggy growth rather than robust foliage. The optimal time for planting ‘Super Greg’ is in the spring, after all danger of frost has passed, when the soil begins to warm. When planting in the ground, space individual plants approximately 2 to 3 feet apart to allow for adequate air circulation and mature spread.
Pruning and Winter Protection
Pruning ‘Super Greg’ rosemary helps maintain its shape, encourages bushier growth, and promotes overall plant health. The best time to prune is typically after the plant has finished flowering, usually in late spring or early summer. Light tip pruning can be done regularly to encourage branching and a denser habit, especially on younger plants. When pruning, avoid cutting into old, woody stems that lack foliage, as these areas may not readily sprout new growth. Instead, focus on green, leafy stems, removing no more than one-third of the plant at a time to prevent shock.
For gardeners in colder climates, providing winter protection is important, especially for plants at the cooler end of their hardiness range (Zone 7). While ‘Super Greg’ is noted for some cold tolerance, prolonged freezing temperatures can be damaging. Applying a thick layer of mulch around the base of the plant can help insulate the roots, and in areas with harsh winters, container-grown plants can be moved indoors to a cool, bright location. If left outdoors in marginal zones, covering the plant with burlap or a breathable fabric during the coldest periods can offer additional protection from frost and drying winds. Ensure the soil is not overly wet before winter sets in, as wet roots in freezing temperatures can lead to root rot.
Culinary and Landscape Uses
The fragrant leaves of ‘Super Greg’ rosemary are valued in the kitchen for their distinct piney and earthy flavor. Fresh sprigs commonly season roasted meats like lamb, chicken, and pork, as well as potatoes, vegetables, and breads. The aromatic foliage can also be infused into oils or vinegars. Rosemary’s flavor is often strongest when used fresh.
In the landscape, ‘Super Greg’s’ prostrate growth makes it an excellent choice. It functions well as a low-growing groundcover, stabilizing slopes and adding texture to garden beds. Its trailing nature is ideal for spilling over rock gardens, elevated planters, or retaining walls, creating a cascade of aromatic foliage. It can be incorporated into mixed containers or hanging baskets. The plant’s evergreen nature provides year-round interest, and its deer and rabbit resistance make it a practical choice for many gardens.