Buying guide

Buy a Rosemary Online: Sizes, What to Check, and Where to Buy

By the Plantshop.com Editorial Team · Updated 21 Oct 2026 · How we research · Report an error

Rosemary is the easiest woody herb to keep in a pot, and it is listed as non-toxic to cats and dogs. It needs a lot of sun and good air flow.

Is a rosemary right for you?

It suits you if you can give it full sun: 6+ hours and you are happy to water when the top 1 in of soil is dry; do not let it dry out completely. Difficulty: Moderate. It is listed as non-toxic to cats and dogs by the ASPCA, so it is a good choice for pet homes. Not sure? Try the Plant Finder.

Similar plants to consider: Calathea, Moth Orchid, Spider Plant, Parlor Palm.

Sizes and what you will receive

Online shops sell plants by nursery pot diameter: about 4 in (small, shelf), 6 in (desk or table), 8-10 in (small floor plant) and 12 in and up (floor statement). Height varies a lot within one pot size, so read the listed height too. A mature rosemary can reach 1-4 ft and growth is moderate, so a smaller plant will take time to fill out; buy closer to the size you want.

What to check when buying: a healthy rosemary

• Firm, evenly colored leaves with no mushy stems at the soil line.
• Soil that is not sour-smelling or waterlogged when it arrives.
• No webbing, sticky residue or tiny moving insects under the leaves.
• Roots, if you peek, that are pale and firm rather than brown and soft.

Problems to know about before buying:

• Powdery white leaves: Powdery mildew from poor air flow.
• Browning needles: Dried out completely, or root rot.
• Leggy growth: Not enough light.

Prices

We do not quote prices until we have checked them. They change with pot size, season and sales. To compare fairly, compare the same pot size and check whether a decorative pot and shipping are included.

Shipping and seasonal risks

Tropical plants like this one suffer below about 50°F (10°C). In winter, order from a shop that adds heat packs or holds shipments in freezing weather, and bring the box inside as soon as it arrives. Summer heat in a delivery truck can also damage plants, so avoid long weekends in transit.

Your first week after delivery

1. Unbox right away and photograph any damage; most guarantees need photos within a set window.
2. Water only if the soil is dry; many plants arrive already moist.
3. Give it full sun: 6+ hours, but avoid harsh direct sun for a few days.
4. Keep it away from other plants for one to two weeks in case of pests.
5. Wait two to four weeks before repotting. Full care guide: Rosemary care.

Where to buy a rosemary online, and why

We list a shop only after confirming it currently lists this plant (checked 21 Oct 2026). Stock changes daily. We may earn a commission from some links; it never decides what we list. Disclosure.

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