Rosmarinus officinalis
Lamiaceae
Common name: rosemary
Leaf: Grey- green, linear, needle-like (narrow) leaves, up to 1.5" long, are closely spaced on the stems, very aromatic.
Flower: tiny, bilabiate (two-lipped), pale blue to white flowers, blooms are in axillary clusters along the shoots of the previous year's growth. Blooms January- April if grown outdoors in the USDA zones 8-11. If the plants have overwintered indoors, they will often bloom late, late spring- summer).
Height: 2-6'; Spread: 2-4'
Habit: erect evergreen shrub; Form: rounded
Culture: Winter hardy to USDA Zones 8-10. Best grown in full sun, in well-drained, slightly acidic soils. Established plants have excellent drought tolerance. Does not like heavy clay soils. Wet, poorly drained soils in winter can be kill R. officinalis. If pruning is desired, best to prune after bloom early in the season, to promote denser foliage growth. If pruning is neglected to be done, rosemary can become leggy after several years, sprawling forward. Rosemary does not transplant very week once it is established.
In areas where they are not winter hardy, they can be put in potted containers, and brought indoors in the fall, where they can be placed in a sunny humid, cool room. Let soil dry out between waterings (dry on top, but not dry throughout). Best to avoid overwatering- can lead to root rot. Can bring containers outdoors in mid-spring after the last frost.
Uses: In areas where they are winter hardy, can be grown in a culinary herb garden, borders or foundations. As a low hedge, or in a perennial garden. Also as container plants on decks, balconies, in a sunny location.
Origin: Mediterranean
Common name: rosemary
Leaf: Grey- green, linear, needle-like (narrow) leaves, up to 1.5" long, are closely spaced on the stems, very aromatic.
Flower: tiny, bilabiate (two-lipped), pale blue to white flowers, blooms are in axillary clusters along the shoots of the previous year's growth. Blooms January- April if grown outdoors in the USDA zones 8-11. If the plants have overwintered indoors, they will often bloom late, late spring- summer).
Height: 2-6'; Spread: 2-4'
Habit: erect evergreen shrub; Form: rounded
Culture: Winter hardy to USDA Zones 8-10. Best grown in full sun, in well-drained, slightly acidic soils. Established plants have excellent drought tolerance. Does not like heavy clay soils. Wet, poorly drained soils in winter can be kill R. officinalis. If pruning is desired, best to prune after bloom early in the season, to promote denser foliage growth. If pruning is neglected to be done, rosemary can become leggy after several years, sprawling forward. Rosemary does not transplant very week once it is established.
In areas where they are not winter hardy, they can be put in potted containers, and brought indoors in the fall, where they can be placed in a sunny humid, cool room. Let soil dry out between waterings (dry on top, but not dry throughout). Best to avoid overwatering- can lead to root rot. Can bring containers outdoors in mid-spring after the last frost.
Uses: In areas where they are winter hardy, can be grown in a culinary herb garden, borders or foundations. As a low hedge, or in a perennial garden. Also as container plants on decks, balconies, in a sunny location.
Origin: Mediterranean
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| R. officinalis, detail of flowers |
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| R. officinalis |
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