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Also known as
Annual Ragweed, Annual Ragweed, Roman wormwood, Common ragweed and Low ragweed
Taxonomy
Ambrosia artemisiifolia
Ambrosia
Asteraceae
Asterales

How to care for Roman Wormwood
How often to water your Roman Wormwood

every 9
Roman Wormwood needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Water 0.5 cups every
9
Finding light for Annual Ragweed in your home

a window
Roman Wormwood love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Roman Wormwood does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Roman Wormwood in your home 🏡.
How to fertilize Roman Wormwood

Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Roman Wormwood after it doubles in size or once a year—whichever comes first.
Roman Wormwood can be challenging to care for, according to some plant parents. Check out the reviews down below to learn from their experiences!
💦 Water Needs
Roman Wormwood prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
☀️ Sunlight Needs
Roman Wormwood requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.
🐶 🐈 👶 Toxicity
Roman Wormwood is not safe to consume. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.
🪴 Soil
Roman Wormwood does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!
💩 Fertilizer
Roman Wormwood is a fast growing plant and may deplete the nutrients in its soil over time. Replenish them with a gentle organic fertilizer or compost every 1-2 months depending on your location and season. Fertilize more often during the growing season and in warmer and brighter climates.
⬆️ ⬇️ Growth Pattern
Roman Wormwood grows vertically and new growth will emerge from the top of the plant.
🌱 Propagation
The seeds of Roman Wormwood can be used to grow new plants! After your plant flowers, any seeds that formed can be collected and germinated in potting soil.
🧐 Troubleshooting
When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.
Inspect the soil moisture; too dry or too wet soil can cause problems.
Ensure the plant is getting the right amount of light, as too much or too little can stress it.
Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.
Care Summary for Roman Wormwood
Roman Wormwood
Greg recommends:

0.5 cups every 9 days

< 1ft from a window

Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
