How to Repot a Rosemary

Salvia rosmarinus

Reviewed by Kiersten Rankel, M.S.

Quick Answer

Repot Rosemary every 1 to 2 years into a pot that's 1 to 2 inches wider than the current pot. Use a gritty, well-draining Mediterranean herb mix with plenty of perlite. Early spring is the best time, just as new growth starts pushing on the tips.

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How to Know It's Time to Repot

Rosemary grows steadily into a small woody shrub, and a too-tight pot shows up as both above-ground and below-ground stress. Watch for these four signals.

1

Roots circle the bottom of the pot or push out through the drainage holes.
2

The plant has roughly doubled in size since you last potted it up.
3

Soil dries out within a day or two of a thorough watering, even in cool weather.
4

Lower needles are yellowing or browning and dropping off.

One sign on its own isn't reason enough to act, but two or more together means it's time. Container-grown Rosemary needs a fresh pot every 1 to 2 years because the roots fill the soil quickly and exhaust it faster than other herbs.

The Best Time of Year to Repot

Rosemary repots best in early spring, just as new growth starts pushing on the tips of the branches. The plant is moving into its strongest growth window and recovers from root disturbance quickly.

Avoid repotting in hot summer when the plant is flowering or stressed by heat, and avoid winter when the plant is essentially dormant. Use the map below to find your window.

North

Apr – May

Mid

Mar – May

South

Feb – Apr

How to Choose a Pot and Soil Mix

Pot Size

Move up to a pot that's 1 to 2 inches wider than the current pot. Rosemary prefers a snug fit because its roots hate sitting in extra wet soil. A small step up keeps the recovery fast and the rot risk low.

Pot Material

Terracotta is the best material for Rosemary. The porous walls breathe, so the gritty mix dries evenly between waterings instead of staying soggy at the bottom of the pot.

Plastic and glazed ceramic can work in dry climates, but they hold moisture too long for most homes and raise the rot risk. Whichever material you pick, make sure the pot has drainage holes. Rosemary roots rot fast in standing water.

Soil Mix

Mix one part standard potting soil with one part coarse perlite or pumice and a small handful of sand for the gritty, well-draining blend Rosemary wants. A bagged Mediterranean herb mix or cactus mix amended with a little compost works just as well.

Skip moisture-control formulas and dense peat-heavy mixes. Both hold too much water and lead to the root rot Rosemary is famous for.

How to Repot a Rosemary, Step by Step

1

Water the day before. Give the plant a light drink the day before repotting so the soil holds the root ball together when you lift it out. Don't soak it, just dampen the soil.
2

Pick the new pot. Choose a pot that's 1 to 2 inches wider than the current pot, with drainage holes. Layer an inch of fresh gritty mix in the bottom so the root ball will sit at the same height it did before.
3

Slide the plant out. Tip the pot onto its side and gently work the root ball loose. Handle the plant by the root ball rather than the woody stems. If it's stuck, run a butter knife around the inside edge of the pot to release it.
4

Inspect and lightly trim the roots. Gently tease apart any roots wound into a tight circle at the bottom. Trim away any sections that are black, mushy, or smell sour, using clean shears. Healthy Rosemary roots are firm and pale tan.
5

Set it in the new pot. Center the plant at the same depth it was growing before. Fill in around the sides with gritty mix, pressing gently as you go to remove air pockets. Burying the woody base above its original soil line can cause rot.
6

Water and place in full sun. Water slowly until you see it run out the drainage holes, then let the soil dry out before the next watering. Set the plant somewhere with at least 6 hours of direct sun, indoors near a south window or outdoors after frost. Hold off on fertilizer for 4 to 6 weeks so the roots can settle in.

What to Expect After Repotting

Week 1

Some needle droop or a few yellowing lower needles is normal as the roots settle into their new home. The piney scent may also be slightly stronger as the disturbed roots release oils.

Let the soil dry between waterings, give the plant full sun, and skip fertilizer for now. Rosemary hates being moved between light levels, so place it in its long-term spot from the start.

Weeks 2 to 4

Fresh bright-green growth on the branch tips is the clearest signal that the plant has rooted in and is ready for normal care.

Ease into your regular watering rhythm of soaking when dry, and start half-strength liquid fertilizer once you see clear new growth. Build up to full strength over the next two or three feedings, but don't overfeed. Rosemary grown too lushly loses its flavor.

Got More Questions?

Does Rosemary like to be root-bound?

Mildly. Rosemary tolerates a snug pot well, and a slightly crowded root ball produces more flavorful needles and concentrated oils. But a truly pot-bound plant dries out within hours of watering and stresses easily, so don't push it too far.

Can I repot a grocery-store Rosemary I just bought?

Yes, and you usually should. Grocery and craft-fair Rosemary plants are often packed tightly with multiple cuttings rooted together in a tiny pot of peaty soil. Repot within a week of getting it home into a proper gritty mix in a slightly larger terracotta pot to dramatically improve its chances.

What if my pot doesn't have drainage holes?

Don't repot directly into it. Rosemary rots fast in standing water, so plant in a nursery pot with drainage and slip that inside the decorative pot. If you want to use the decorative pot directly, drilling works for unglazed terracotta, but glazed ceramic and thin pots tend to shatter. Use a diamond bit with a slow drip of water if you try it.

Can I divide a Rosemary plant when I repot?

Most Rosemary plants are a single woody shrub and don't divide cleanly. If your pot has multiple cuttings rooted together, you can gently tease the root balls apart at repotting time and pot each one separately. Cut between the root masses with clean shears if needed.

Why is my Rosemary dying after I brought it home?

Indoor Rosemary is famously tricky because most homes don't give it enough light or air movement. After repotting, place it in your brightest south or west window, or under a grow light. A small fan nearby helps air circulation and keeps fungal issues at bay.

Should I prune the Rosemary when I repot?

Light pruning is fine at repotting time, but skip a hard cutback. Trim the tips of long stems by an inch or two to shape the plant, and use the trimmings in the kitchen. A heavy prune combined with a repot is too much stress at once and often kills the plant.

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About This Article

Kiersten Rankel, M.S.

Botanical Data Lead at Greg · Plant Scientist

About the Author

Kiersten Rankel holds an M.S. in Ecology & Evolutionary Biology from Tulane University. A certified Louisiana Master Naturalist, she has over a decade of experience in science communication, with research spanning corals, cypress trees, marsh grasses, and more. At Greg, she curates species data and verifies care recommendations against botanical research.

See Kiersten Rankel's full background on LinkedIn.

Editorial Process

Repotting guidance verified against Salvia rosmarinus growth data from Greg's botanical database, cross-referenced with USDA hardiness zone data and published horticultural research.

13,192+ Greg users growing this plant

USDA hardiness zones 8a–11b

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