Growing Rosemary

Rosmarinus officinalis : Lamiaceae / the mint family

Jan F M A M J J A S O N Dec

(Best months for growing Rosemary in USA - Zone 5a regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • Easy to grow. Plant cuttings . Best planted at soil temperatures between 15°C and 20°C. (Show °F/in)
  • Space plants: 100 - 150 cm apart
  • Harvest in approximately 1 years. In warmer areas, harvest time might be shorter.
  • Compatible with (can grow beside): Beans, Carrots, Cabbages, Sage
  • Avoid growing close to: Potatoes

Your comments and tips

05 Jan 21, E (USA - Zone 7a climate)
You need to judge by how cold it is in your area - frosts etc. Be guided by what it says here about doing cuttings if a lot of frosts. Maybe leave planting out until after the last frost. Plants need sunlight. Maybe put them out in the day and bring in at night if going to be really cold.
01 Oct 21, Elf Chef (USA - Zone 6a climate)
Can you use a full-spectrum grow lamp for rosemary inside for the winter instead of direct sun?
21 Nov 21, Nicole (USA - Zone 6b climate)
Yes you sure can. I grow my rosemary in containers and bring them in during the winter. They do great under a full spectrum or just my cheap T4 fluorescent light and I even get quite a bit of growth on them during their time indoors.
05 Dec 22, Holli (USA - Zone 8b climate)
I bought a potted rosemary plant this month( December), I live in zone 8b, can i plant it outdoors? The next 10 days the weather ranges from a low of my 40 and a high of 79. I plan to cover it if temps drop into 30's. Last year the leaves on my indoor potted rosemary turned black and fell off
20 Feb 23, (USA - Zone 6a climate)
i am looking for the best rosemary to grow in zone 6a, for inground planting.
19 Mar 23, ALB (USA - Zone 6a climate)
Yes. I dug 2 rosemary plants out of my garden in late September and have used a grow light (4) hours daily plus kept them in my sunniest window all winter. They are still making leaves.
27 Mar 24, Joseph L. Roberts (USA - Zone 7a climate)
What rosemary variety is best in 7a (Seymour Texas)
Showing 11 - 17 of 17 comments

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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