How to Grow Rosemary at Home? (A Step-By-Step Guide)

If you’re a gardener, chances are that you already know how to grow rosemary. But if not, then it’s time to learn! Growing rosemary is easy and inexpensive, and the aromatic herb can be used in both sweet and savory dishes. Here’s a step-by-step guide on how to grow rosemary at home.

Starting from Seeds

Starting your rosemary herb plant from seeds takes quite a long time. It usually takes around 12 weeks for you to start seeing seedlings coming out.

It’s an excellent idea to plant double the amount of seeds because half of them will not make it. My recommendations would be to start from cuttings or starter plants from a nursery.

To begin you will want to purchase trays, sterilized seed mix, and rosemary seeds. You can purchase the seeds from any store that has a gardening center.

Fill the trays with sterilized seed mix, and even them out. Next sow your seeds in less than 1/4” into the seed mix.

Fill up a spray bottle with water and spray the soil with some water.

Spray the soil until moist, do not over water. Next cover the seed tray with the provided lid. Rosemary seeds require 6-8 hours of sunlight a day, proper moisture and warm soil temperatures.

The temperature of the soil needs to approximately 90 degrees Fahrenheit (32.22 °C).

Look at your seeds daily and spray water on them whenever the soil begins to dry out. Keep them moist.

Once seedlings begin to appear, be careful not to over water them because rosemary has a tendency of becoming overly saturated, and can hold dampness in the roots.

You can start transplanting rosemary in the pots, planters or even containers when the seedlings reach around 5 inches (12.7 cm) in height.

Recommended Planters or Pots

I find that these planters work very well when growing Rosemary. You can purchase all of these products on Amazon.

If you are looking for a small kitchen windowsill growing set, get the Saratoga Home Herb Pots with Tray Set.

If you are receiving very little sunlight in your home then I would use the Mindful Design LED Indoor Herb Garden.

I personally use the Classic Garden Planters for my Rosemary plants. These planters are big enough for all herbs, and they even have drainage holes on the bottom, making them great for indoor and outdoor use.

How to grow Rosemary from Cuttings

This is the easiest method for success. To grow rosemary from cuttings, you will need a fully mature plant, 4 – 6” pots, well draining soil, and powdered rooting hormone. When the plant has flowered use scissors to cut a stem from your fully mature plant.

Cut a stem that is about 7″ in length, and remove just the lower portion of leaves only from the cut side. Now you will want to dip the cut side of the stem into the powdered rooting hormone. Fill your pots with excellent draining soil like sandy loam soil.

Next grab the stems that you dipped in the hormone powder and plant them into your pots. Place them in a warm sunny spot and make sure to maintain proper moisture during growth.

Again do not over water. Cuttings can be planted outdoors in about 8-10 weeks.

Pick a Spot

Once the soil temperature reaches around 70 degrees Fahrenheit (21.11 °C) outdoors, you want to pick a spot in your yard or garden that gets 7-8 hours of sunlight a day. Rosemary grows very large.

A mature plant can reach up to 4 feet (1.22 m) in height, and the same in width, so think of a good location. Once you have selected the spot, check the soil, and make sure that it is a good draining soil.

Now carefully remove your cuttings from their pots and plant them into the ground. Water the plants. Be careful not to overwater.

Rosemary can be planted with some vegetables such as broccoli, peppers, beans, cabbage, onions, kale, turnips, brussels sprouts, radish, parsley and sage. It is said to improve the size and taste of your crops.

Watering instructions

Various plants need distinctive water quantity. A few plants favor being on the drier side, and others like to be moist. Check your plant tag, to check the recommendations for that particular plant.

Deep watering urges roots to grow deeper into the ground, bringing about a sturdier plant having more resilience against the dry season.

To check moisture in the soil, use your finger or little trowel to dig in and look at the condition of the soil. If you notice that the initial 2-4″ (5-10 cm) of soil which is dry, this is the time when the water is required.

Plants placed in the planters or pots can rapidly become dry, due to the changing climate, and will require more than the plants in the garden.

Apply water at the level of the soil if conceivable to abstain from wetting the foliage. Now water the whole soil territory until the water runs out from the pot. This demonstrates that soil has achieved its water needs.

Rosemary Poor Companion Plants

Do not plant rosemary near squash, potatoes and carrots. These are the worst companions.

Companion Plants

Rosemary can be planted with some vegetables such as broccoli, peppers, beans, cabbage, onions, kale, turnips, brussels sprouts, radish, parsley and sage. It is said to improve the size and taste of your crops.

Caring for Rosemary

Rosemary needs full sun approximately 7-8 hours a day. Avoid planting it in the shade.

When your plant is growing on the thin side you want to begin to prune your plant. Pruning your plant will often make it bushier.

Water your plant regularly. Water just enough and never overwater. This plant does not do to good in too much moisture and will cause root rot.

If you have your rosemary planted into pots or planters, bring them inside when the weather begins to get cooler. Keep them inside all winter. You can use grow lights in the winter if your house lacks sufficient sunlight.

Bring rosemary inside during the winter months. Keep them away from heat vents. When indoors rosemary prefers temperatures of around 60 degrees Fahrenheit (15.56 °C).

Pests and Diseases

The most common invaders are Spider Mites, Spittle bugs Aphids and White flies. They can damage any plant, so make sure to used to treat them quickly. Use insecticidal soaps to clear it up.

Root Rot and powdery mildew are the most common diseases. To get rid of these diseases you will want to use fungicide spray.

How to Harvest Rosemary

You can cut rosemary from the plant and use it as you need it. Doing this will also encourage growth.

Some people like their rosemary dried. To achieve this, use scissors cut a 4-5″ stems from the top of the plant.

Then gather all the stem and bundle them together. You can use either twist ties or rubber bands like bouquets. You can also use a food dehydrator or drying rack.

Hang the stems upside down in a warm dry spot. The rosemary will be dried up in 12 days or less.

Now get yourself a jar with a lid. Grab the stems individually and strip the leaves into the jar and seal it tight to prevent mold.

Store it in a cool dark spot like the cellar is great.


Rosemary it is aromatic and full of flavor, and has endless benefits. Adding fresh rosemary to your meals will sure enhance the flavor.

Try Rosemary Pork Roast, Rosemary Ranch Chicken Kabobs, Rosemary Roasted Turkey, Roast Chicken with Rosemary, Roast Leg of Lamb with Rosemary, Lemon Rosemary Salmon, Delicious Rosemary Bread, Grilled Swordfish with Rosemary.

Frequently Asked Questions

Are coffee grounds good for rosemary plants?

Dried coffee grounds are very good for rosemary. It supplies nitrogen to the soil. Do not use brewed coffee grounds because the acidity can harm your plant.

What is the best fertilizer for rosemary?

Rosemary usually grows fine without the need of fertilizers. If you do want to use a slow release shrub fertilizer. My recommendation would be to use it only once, in the beginning of the season, and make sure it’s diluted because it can do more harm than good.

What does overwatered rosemary look like?

Rosemary does not like a moist environment. When rosemary gets too much water the needle tip leaves turn brownish, and water should be scaled back. Check your soil drainage. This is also an early sign of root rot.

How do you keep rosemary from going woody?

To avoid this from happening in the future, here are some steps you can take to keep your rosemary plant healthy: 1) Give your plant an occasional drink of water. 2) Trim off any brown or wilted branches with kitchen shears every two weeks.

How often should rosemary be watered?

Rosemary should be watered every 1-2 weeks. When the weather is very hot it is recommended to water it once a week. Check the top 1-2″ of soil with your finger, if it’s dry water it.

What’s the easiest way to start a rosemary plant?

Many people enjoy growing their own herbs, but don’t know how to start a rosemary plant. The easiest way is by purchasing starter plants from a nursery or garden center. These plants are usually more mature and will grow better than if you started one from seed.