Rosemary Plant Info

Rosemary is a fragrant herb belonging to the mint family. It has needle-like leaves and blue, purple, pink, or white flowers. It’s native to the Mediterranean region but has been successfully grown in various parts of the world. The plant is widely used for culinary, medicinal, and ornamental purposes. 

Rosmarinus officinalis
Garden rosemary
Common rosemary
Rose of Mary
Polar plant
Blue Boy
Hill Hardy
Lockwood de Forest
Miss Jessopp’s Upright
Spice Islands
Tuscan Blue
Blue, purple, pink, or white blooms


Water moderately during the growing season and reduce the frequency in winter. It's best to water deeply and infrequently, allowing the soil to dry out slightly between waterings.


Provide it with at least 6 hours of full sun per day to thrive. It can tolerate partial shade, but it may have fewer flowers and flavor. Indoors, place rosemary near a bright window that receives direct sunlight for several hours a day.


Rosemary prefers light and sandy growing media that are slightly acidic to neutral. It can also grow in alkaline soils, but it may have yellow foliage and poor growth. To improve the soil quality for the herb, you can add compost or perlite.


The herb can benefit from a light application of a balanced organic fertilizer in spring and summer. When growing indoors, feed the plant once a month with a diluted liquid fertilizer during the growing season.


You can prune the herb anytime during the year, except when it is blooming or dormant. This helps to maintain its shape and size and to encourage new growth and flowering.


Three ways to propagate the herb: by seed, cutting, or layering. Because the former is slow and difficult to germinate, it's best to multiply cuttngs, which is far easier. Take a cutting from healthy stems and remove the lower leaves, then place it in water. When you see signs of root development, place the cutting in moist sand and keep it in a warm and humid place until fresh sprigs emerge.
You can also layer by bending a low-growing branch to the ground and covering part of it with soil. Secure the branch with a stone and leave until it roots. You can then cut the new plant from the parent plant and transplant it.

Thrives in

Warm and dry climates with moderate humidity.


Rosemary is generally safe to consume in small amounts as a herb or a tea. But, it may cause allergic reactions in some people who are sensitive to it or have asthma. It may also interact with some medications like blood thinners or anticonvulsants. The herb should be avoided by pregnant or breastfeeding women as it may stimulate uterine contractions or affect milk production.

Pests & Diseases

Spider mites
Scale insects
Powdery mildew
Root root
Leaf spot

Landscaping Ideas

Ground cover
Specimen plant

Last Updated: September 20, 2023

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