Growing Rosemary Indoors – What you Need to Know

How to Start Growing an Indoor Rosemary Garden

Growing your own herb garden can be a fun and rewarding experience, especially for those who are just starting out in gardening. Rosemary, in particular, is a popular herb for indoor growing due to its resilience, fragrance, and culinary versatility. However, if you’re new to indoor gardening, it can be confusing to know where to start. 

rosemary leaves in a bottle
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Growing rosemary indoors can be a bit challenging and requires careful attention to detail. With the right tools and techniques, anyone can create a beautiful and healthy indoor rosemary garden.  That being said, don’t worry if your rosemary doesn’t come out perfect the first time – it’s not like you can go to the store and buy a premade rosemary plant!

In this blog post, we’ll provide you with the best methods for growing an indoor rosemary garden, including tips on choosing the right location and soil, caring for your plants, and harvesting your herbs. Whether you’re an experienced gardener or just starting out, these tips will help you grow the best indoor rosemary garden possible. 

How to Grow Rosemary Indoors in 10 Easy Steps

crop unrecognizable gardener touching lush potted rosemary
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1. Choose a container: Rosemary can be grown in any medium to large-sized container with drainage holes. Terracotta or clay pots are excellent because they allow for better air circulation.

2. Soil: Use well-draining soil with a pH between 6.0-7.0. Avoid using heavy potting soils that retain moisture for too long.

3. Light: Rosemary thrives in bright, direct sunlight so place the pot near a window that gets at least six hours of sunlight per day. Artificial lights can be used as a supplement if natural light is insufficient.

4. Water: Rosemary requires moderate watering. Water your plants only when the soil feels dry to the touch, usually once a week in hot, dry conditions.

5. Fertilizer: Rosemary doesn’t require much fertilizer, but a monthly feeding of a balanced fertilizer will help keep the plant healthy.

6. Temperature: Rosemary prefers a cool, airy environment. Keep the temperature around 60-65°F (15-18°C).

7. Pruning: Pinch back the tips of the plant to encourage bushier growth. After harvesting, prune the plant back by about a third of its size.

8. Pests and Diseases: Rosemary rarely suffers from pests or diseases. However, watch out for spider mites and aphids. Trim away any damaged or diseased leaves.

If infestations occur, use a natural insecticide such as neem oil or soap spray.

9. Winter Care: In colder climates, move potted rosemary indoors before the first frost. Water sparingly, as the plant may go dormant. In warmer climates, covering the plant with a frost cloth during freezes can protect it from damage.

10. Companion Plants: Rosemary grows well with other herbs such as sage, thyme, and oregano. It’s also beneficial to plant near cabbage, beans, and carrots, as it repels pests that harm these vegetables. Avoid planting near basil, as they both attract the same pests.

How to Care for Dying Rosemary Plants

If you have an indoor rosemary plant that’s struggling, don’t despair!

Here are some tips that might help bring it back to life:

green rosemary plant on brown pot
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Firstly, make sure your plant is getting enough light, water and a moderate temperature. Rosemary needs good sunlight, soil that drains well and just the right amount of watering.

Secondly, give your plant a trim by removing any dead or dying branches. This will help focus the plant’s energy on healthy areas while also improving air circulation.

Thirdly, pests may be causing your rosemary’s decline; carefully inspect for spider mites or scale insects and treat them accordingly.

Fourthly, to create ideal growth conditions for Rosemary, try to slightly acidify its soil. You can achieve this by adding acidic amendments such as peat moss or acidic fertilizers.

Finally, if your plant has become root-bound or the soil is compacted, you should repot it in fresh soil using a slightly bigger pot than the current one.

By following these steps and giving your indoor rosemary all the attention, it deserves, you may soon see it thriving once again!

Are Indoor Herbs Attractive to Pests?

Indoor herbs are susceptible to various pests that can damage or even kill the plant if not addressed promptly. Here are some common pests that attack indoor herbs:

Moth fly or drain fly on herb soil/ mulch.
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1. Spider mites – These tiny bugs suck the sap from the leaves, causing leaves to turn yellow or brown and fall off. They spin webs between leaves and stems, leading to further damage.

2. Mealybugs – These pests look like cottony blobs on the leaves and stems, and they also suck sap from the plant. They can cause yellowing and wilting of the leaves and can also spread diseases.

3. Scale insects – These pests are known for their hard, shell-like coverings that protect them. They feed on the sap from the leaves and stems and can cause yellowing, wilting, and death of the plant.

4. Whiteflies – These pests are tiny, white insects that fly around when disturbed. They feed on the sap of the plant and can lead to yellowing and curling of the leaves.

5. Aphids – These tiny insects suck the sap from the plant and can cause curling of the leaves, yellowing, and stunted growth. They can also spread diseases.

To prevent these pests from attacking indoor herbs, it’s important to keep the plants healthy and well-cared for. This includes providing proper lighting, watering, and fertilization. If a pest infestation occurs, it’s important to address it promptly and thoroughly, using specialized products or homemade remedies. But the up-most important thing to remember is that no matter what, don’t give up – these pests may be pesky, but they’re no match for your green thumb!

10 Fun Facts About Rosemary

Here is a Step-by-step Guide to Harvesting Rosemary Plant

close up photo of a person cutting plant with scissors
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1. Choose the right time to harvest: The best time to harvest indoor rosemary is when the plant has reached 6-8 inches in height and is at least 3 months old.

2. Find the right tools: You will need a sharp pair of scissors or pruning shears, a clean cutting board and a small basket or container to collect the harvested rosemary.

3. Clip the rosemary stems: Locate the stem section you want to harvest and use the scissors to snip it right above the leaf node. This node is the point where new growth will come, making it the perfect spot to snip. Make sure to leave at least 2-3 inches of growth on each stem you cut.

4. Clean the rosemary: Once you have collected enough rosemary, take the container it’s in to a sink and rinse it thoroughly with water. Make sure to remove any dirt, dust, or debris from the plant.

5. Dry the rosemary: Spread the harvested rosemary in a single layer on a dry paper towel or clean cloth, and leave it to dry overnight in a cool, airy place. They can also be hung to dry on a drying rack. Once dry, you can use a pair of scissors to strip the leaves from the stems.

6. Store the rosemary: Store the dried rosemary leaves in an airtight container, and keep it in a cool, dry place. The best way to store rosemary is in a cool, dark cupboard away from direct sunlight, heat, and moisture. Dried rosemary will usually last for up to 6 months.

So, There You Go!

Learning how to grow an indoor rosemary garden can be a rewarding experience for beginner gardeners. The best methods for success include starting with healthy plants and providing them with proper sunlight, watering, and soil conditions. It is also important to regularly prune and harvest the plant to promote growth. As you start your own indoor rosemary garden, we encourage you to share your experiences and suggestions in the comments section. We look forward to hearing about your successful harvests and tips for other aspiring gardeners.

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Besides talking about rosemary, I grow my own indoor herb garden and research the best methods to assist beginner gardeners in learning about and growing their own indoor herb gardens. I enjoy teaching people about how to successfully grow herbs indoors and share tips and tricks that I have learned from my own experiences. I also enjoy the challenge of growing new herbs and experimenting with different methods to see what works best. After all, there’s nothing quite like the feeling of watching your plants grow — except maybe eating the food you grew yourself!


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