Swiss Gromwell

Taxonomy

Scientific name

Onosma helvetica

Genus

Onosma

Family

Boraginaceae

Order

Boraginales

How to care for Swiss Gromwell

💦 Water

How often to water your Swiss Gromwell

Swiss Gromwell 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

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Swiss Gromwell in your home

Swiss Gromwell may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.

Place it less than 3 feet from a south-facing window to maximize the potential for growth.

Select your region to see how the current weather in your area affects the placement of Swiss Gromwell in your home 🏡.

🪴 Nutrients

How to fertilize Swiss Gromwell

Nutrient, fertilizer, and repotting needs for Swiss Gromwell: repot after 2X growth

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 Swiss Gromwell after it doubles in size or once a year—whichever comes first.

💡 FAQs

🐶 🐈 👶 Toxicity

Swiss Gromwell is not known to cause harm to humans or pets. Regardless, if you, a family member, a cat, or dog has ingested any plant material, please consult a doctor or a veterinarian.

🌦️ Growing Outdoors

USDA Hardiness Zone
Swiss Gromwell can be grown outdoors in USDA Hardiness Zones 5a-7b. Find your local hardiness zone here.

🧐 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.