Tournefortia gnaphalodes, the sea lavender, bay lavender, sea rosemary, iodine bush, or beach heliotrope, is a species of flowering plant in the family Boraginaceae. It is native to Florida, Mexico, Central America, the Caribbean, Bermuda, northeastern Colombia, and Venezuela. A semi‑succulent evergreen shrub reaching 5 ft (1.5 m), it is typically found in coastal areas. Occasionally cultivated as an ornamental, it is often used for dune stabilization.
Sea rosemary is well resistant to disease and typically does not get sick. In terms of care, the plant is fairly low-maintenance. Planted outdoors it needs only light watering, and larger specimens usually do not need pruning, while smaller ones should be pruned after they finish blooming. Sea rosemary is suitable for anyone who has an outdoor space, such as a garden or a deck, and it does not require much gardening experience.
How to keep Argusia Gnaphalodes.
Light
Sea rosemary comes from open habitats, like sunny meadows and forest edges, which offer plenty of light. It grows best in full sun but can also tolerate partial sun, adjusting well to different light levels.
Temperature
Sea rosemary comes from tropical areas, where the weather is usually warm and humid. Consequently, it is adapted to high heat and moisture. It does not tolerate sudden temperature shifts and prefers a constant temperature, so avoiding indoor temperature fluctuations is important. It typically cannot withstand cold and needs higher temperatures to grow. If the surrounding temperature falls too low, the plant may stop growing or even die.
Fertilizer
The best time to fertilize a Sea rosemary is in early spring as it breaks dormancy. This encourages overall growth and flower production. Fertilizing improves foliage, stems, and branches, and promotes large, vibrant, long-lasting flowers. It also helps move nutrients from the roots to the blooms and enhances the plant's health and disease resistance.
Botanical profile.
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Argusia
- Family
- Boraginaceae
- Hardiness Zone
- 10-12
- Mature Height
- 0.61 m to 1.52 m
- Mature Spread
- 1.83 m to 6.1 m
- Leaf Color
- Silver, Gray
- Leaf Type
- Evergreen
- Flower Color
- White
- Flower Size
- 0.51 cm to 0.51 cm
- Bloom Time
- Late spring, Summer, Fall
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Mid summer, Late summer, Fall, Early winter
- Native Area
- Colombia, Belize, Cuba, Honduras, Mexico, Guatemala, Venezuela, Nicaragua, Jamaica
Other names.
