Rosemary Salvia rosmarinus 'Jekka Blue' (Ro)
ABOUT
The plant commonly known as 'Jekka Blue' rosemary is characterized by its aromatic, needle-like leaves which boast a deep green color with a slightly silvery sheen. The leaves are evergreen, meaning they retain their color and remain on the plant throughout the year. This particular variety is known for its dense, bushy growth habit, forming a compact, rounded shape that is lush and full. The 'Jekka Blue' rosemary produces small, tubular flowers that can range in color from pale to deep blue, often attracting bees and other pollinators when they bloom. The flowers are complemented by the rich green of the foliage, creating a contrast that adds to the visual appeal of the plant. The stems of the plant are woody at the base, becoming more herbaceous and flexible towards the tips. This rosemary variety is both ornamental and functional, frequently used in culinary applications for its fragrant, flavorful leaves. The overall impression of the 'Jekka Blue' rosemary is that of a well-structured, attractive, and aromatic plant that is a staple in both ornamental gardens and herb plots.
About this plant
NamesFamily
Lamiaceae
Synonyms
Rosemary, Jekka Blue Rosemary
Common names
Rosmarinus officinalis 'Jekka Blue', Salvia rosmarinus.
ToxicityTo humans
Rosemary (Salvia rosmarinus 'Jekka Blue') is generally considered safe for humans when consumed in typical culinary amounts. However, large quantities can potentially cause side effects due to its volatile oils, camphor, and other compounds. Ingesting large amounts of rosemary may lead to gastrointestinal irritation, kidney irritation, and vomiting. In some people, especially those with allergies or pregnant women, it can potentially cause allergic reactions or affect the uterus.
To pets
Rosemary is generally considered non-toxic to pets. However, like in humans, ingesting very large quantities could potentially cause mild gastrointestinal upset in some animals. It's always advisable to monitor your pet if they consume plant material and consult with a veterinarian if any adverse reactions are observed.
CharacteristicsLife cycle
Perennials
Foliage type
Evergreen
Color of leaves
Green
Flower color
Blue
Height
2 feet (61 cm)
Spread
2-4 feet (61-122 cm)
Plant type
Herb
Hardiness zones
8
Native area
Mediterranean
Benefits
General Benefits- Culinary Use: Rosemary is widely used in cooking for its aromatic flavor, particularly in Mediterranean cuisine, where it can be added to meats, breads, and sauces.
- Aesthetic Appeal: With its dense, evergreen foliage and 'Jekka Blue' producing flowers that attract bees and butterflies, rosemary adds visual interest to gardens and landscapes.
- Drought Resistance: Ro (rosemary) is known for its ability to withstand dry conditions, making it a water-wise choice for gardens in arid climates or areas with water restrictions.
- Herb Gardening: Rosemary is a popular choice for herb gardens due to its ease of cultivation, hardiness, and perennial nature, providing a consistent supply of fresh herbs.
- Fragrance: The plant emits a pleasant, pine-like fragrance, which can enhance the sensory experience of a garden or be used in potpourris and sachets.
- Companion Planting: Rosemary is believed to help repel certain pests and can be grown alongside various vegetables and plants to promote a healthier garden ecosystem.
- Culinary Preservation: The plant's leaves can be easily dried or frozen for future culinary use, ensuring a year-round supply of this flavorful herb.
Medical Properties- Antioxidant activity: Ro may contain compounds with antioxidant properties that can help protect the body's cells from damage caused by free radicals.
- Anti-inflammatory effects: It has been suggested that Ro could possess anti-inflammatory properties, potentially reducing inflammation in the body.
- Cognitive enhancement: There is some evidence to suggest that Ro might improve memory and cognitive function due to its aromatic compounds.
- Antimicrobial properties: Ro has been traditionally used for its antimicrobial properties, which might help in fighting certain bacteria and fungi.
- Supportive in digestion: Ro has been used to support digestive health, possibly by reducing spasms in the digestive tract.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- As a natural fabric dye: The leaves of the rosemary plant can be used to create a natural dye for coloring fabrics in shades of green or yellow, depending on the mordant used.
- Wood polishing agent: Rosemary oil, derived from the leaves, can be mixed with vinegar and water to create a natural wood polish for furniture.
- Insect repellent: Growing rosemary around the home or using sprigs can help deter mosquitoes and other insects due to its strong scent.
- Memory booster: By simply smelling rosemary, some studies suggest it can help in improving concentration and memory.
- Flavor enhancer: Dried or fresh rosemary can be burnt to add a smoky rosemary flavor to meats and vegetables during grilling or barbecuing.
- Decorative wreaths: Rosemary branches can be woven into wreaths for decoration or ceremonial use, symbolizing remembrance and fidelity.
- Companion planting: Rosemary can be planted alongside vegetables in gardens to help repel damaging insects and enhance the growth of companion plants.
- Foot soak: Infusing water with rosemary leaves can create a soothing foot soak that helps to reduce swelling and improve circulation.
- Fireplace enhancer: Throwing rosemary sprigs into a fireplace can give off a fragrant aroma, creating a pleasant atmosphere in the home.
- Garden paths: Planting rosemary alongside garden paths not only offers a pleasant aroma as you brush past but also can help to minimize weeds due to its thick growth.
Interesting Facts
Feng ShuiThe plant Rosemary is not used in Feng Shui practice.
Zodiac Sign CompitabilityRosemary is not used in astrology practice.
Plant Symbolism- Remembrance: Rosemary, the common name for Salvia rosmarinus, is traditionally associated with memory and remembrance, often worn during commemorations like ANZAC Day or Remembrance Day to honor those who have died in wars.
- Fidelity: Historical associations of rosemary with weddings and funerals suggest its symbolism for loyalty and fidelity, highlighting the plant's role in pledging and sustaining affection and friendship.
- Purification: The herb has been used in various cultures for cleansing rituals and to ward off evil spirits, reflecting its symbolism for purity and protection.
- Healing: With known medicinal properties, rosemary symbolizes health and healing, and has been used historically in herbal remedies to treat a multitude of ailments.
WaterFor Rosemary 'Jekka Blue', water every 1 to 2 weeks, allowing the soil to dry out between watering. Use a watering can or hose with a gentle flow to avoid eroding the soil around the base of the plant. Aim to provide the equivalent of 1 inch of rainfall, which is roughly 0.6 gallons for a medium-sized plant. During hot, dry periods, more frequent watering may be necessary, but always check the soil moisture first to prevent overwatering.
LightRosemary 'Jekka Blue' thrives in full sun, requiring at least 6 to 8 hours of direct sunlight daily for optimal growth. A south-facing location is ideal, offering ample light throughout the day. If grown indoors, place near a sunny window or supplement with grow lights if natural light is insufficient.
TemperatureRosemary 'Jekka Blue' prefers temperatures between 55 and 80 degrees Fahrenheit but can tolerate temperatures as low as 30 degrees Fahrenheit and as high as 90 degrees Fahrenheit for short periods. The ideal range promotes healthy growth and resilience to environmental stressors. Avoid placing the plant in areas with drastic temperature swings.
PruningPrune Rosemary 'Jekka Blue' at the beginning of spring to encourage bushy growth and remove any dead or woody stems. Regular harvesting of the leaves also counts as light pruning and can be done throughout the growing season. The best time to do a more substantial prune is after the plant has flowered to maintain its shape and size.
CleaningAs needed
SoilRosemary 'Jekka Blue' thrives in well-draining, sandy or loamy soil with a pH range of 6.0 to 7.5. A soil mix containing two parts coarse sand, one part peat, and one part perlite or pumice can support healthy growth, ensuring adequate drainage and aeration.
RepottingRosemary 'Jekka Blue' should be repotted every one to two years. Choose a slightly larger pot with good drainage holes to accommodate growth and prevent root-bound conditions, using fresh soil mix when repotting to refresh nutrients.
Humidity & MistingRosemary 'Jekka Blue' prefers a dry to moderate humidity environment, typically between 40-50%. It does not require high humidity and can tolerate the drier air found in most homes.
Suitable locationsIndoor
Place rosemary 'Jekka Blue' in bright light, avoid overwatering, and provide good air circulation.
Outdoor
Plant in full sun, ensure drainage, protect from harsh winter winds.
Hardiness zone
Rosemary 'Jekka Blue' is suitable for USDA zones 7-10.
Life cycleSalvia rosmarinus 'Jekka Blue', commonly known as rosemary, typically begins its life as a seed, though propagation through cuttings is also common. After germination, the seedling emerges and develops into a young plant with characteristic needle-like leaves. As it matures, the plant experiences vegetative growth, establishing a woody stem and branching pattern, along with increased foliage. During the flowering stage, 'Jekka Blue' produces small, blue to violet flowers, usually in the spring and summer, that attract pollinators like bees. After pollination, seeds may form, which can disperse and potentially lead to new plants if conditions allow. Throughout its life, which can span several years, 'Jekka Blue' continues to grow and produce new shoots, leaves, and flowers, entering a period of dormancy during colder months if not grown in a warm climate.
PropogationPropogation time
Spring-Early Summer
The most popular method of propagating Salvia rosmarinus 'Jekka Blue', commonly known as Rosemary, is through stem cuttings. This can be done in late spring or early summer when the plant's new growth is vigorous. To propagate, take a stem cutting of about 4 to 6 inches (10 to 15 centimeters) long, strip the leaves from the bottom two-thirds of the cutting, and dip the cut end into a rooting hormone. Then place the cutting into a well-draining soil mix and keep it moist but not waterlogged. The cutting should be kept in a warm area with indirect light. Roots will generally develop within a few weeks, after which the plant can be transferred to a larger pot or into the garden.
