Photo: no rights reservedCC0 1.0via iNaturalist
Glandular bartsia Plant Care
Parentucellia latifolia (L.) Caruel
Updated · Sources · How we source care data
With its vibrant yellow flowers that resemble snapdragons, this plant originates from Europe and North Africa. Plant collectors are drawn to Parentucellia latifolia for its unique and striking appearance, adding a pop of color to their gardens.
Every 7–10 days
Full sun to partial shade
60–80°F
40–60%
At a glance
How do you care for Glandular bartsia?
Water Glandular bartsia every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–80°F (16–27°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
Where Is the Glandular bartsia Native To?
- Albania
- Austria
- Belarus
- Belgium
- Bosnia and Herzegovina
- Bulgaria
- Croatia
- Cyprus
- Czechia
- Denmark
- Estonia
- Finland
- France
- Germany
- Greece
- Hungary
- Iceland
- Ireland
- Italy
- Latvia
- Lithuania
- Luxembourg
- Malta
- Moldova
- Montenegro
- North Macedonia
- Norway
- Poland
- Portugal
- Romania
- Russia
- Serbia
- Slovakia
- Slovenia
- Spain
- Sweden
- Switzerland
- The Netherlands
- Ukraine
- United Kingdom
What Is the Glandular bartsia?
Glandular bartsia (Parentucellia latifolia) belongs to the Orobanchaceae family within the Parentucellia genus. Glandular bartsia is native to Europe. Glandular bartsia is also known as Broadleaf bartsia.
Glandular bartsia displays an upright, branching herb growth habit, reaching up to 1.5 ft tall with a spread of approximately 0.5 ft. Glandular bartsia produces small tubular purple flowers in dense spikes.
Leaf size: approximately 2 inches.
How Often Should You Water a Glandular bartsia?
Parentucellia latifolia requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–10 days
Let soil partially dry between waterings
What Light Does the Glandular bartsia Need?
Glandular bartsia thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Glandular bartsia Prefer?
Parentucellia latifolia grows best at temperatures of 60–80°F. Glandular bartsia prefers humidity levels of 40–60%.
Temperature
60–80°F
Humidity
40–60%
What Soil Mix Works Best for a Glandular bartsia?
Well-draining sandy loam with added organic matter. Good drainage is essential for Glandular bartsia to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Glandular bartsia?
Feed Glandular bartsia every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Glandular bartsia?
Repot annually in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Glandular bartsia?
Glandular bartsia can be propagated through seeds. Similar propagation techniques also apply to yellow bartsia plant care, which shares the same genus.
Is the Glandular bartsia Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Glandular bartsia, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Glandular bartsia?
Glandular bartsia is susceptible to aphids, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Glandular bartsia Need?
Glandular bartsia grows outdoors in USDA Zone 8a – 10b. It survives winters down to planting zone 8a. Glandular bartsia is native to Europe.
Hardiness Zone
Zone 8a – 10b
Keep exploring plants
Glandular bartsia is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Parentucellia genus — compare its care with other Parentucellia species on PlantoScan.
Parentucellia is part of the Orobanchaceae plant family — browse all Orobanchaceae genera and species.
Glandular bartsia thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Parentucellia latifolia (L.) Caruel, family Orobanchaceae (first published in Fl. Ital. 6: 480 (1885)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Glandular bartsia, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Photo: Public domain, CC0 1.0, iNaturalist — original.
- Hardiness zone: USDA Zone 8a – 10b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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