Adelinia grandis Plant Care
Adelinia grandis (Douglas ex Lehm.) J.I.Cohen
Updated · Sources · How we source care data
Adelinia grandis, previously known as Cynoglossum grande, is a species of flowering plant commonly known as hound's tongue in the borage family. It is the only species in the genus Adelinia.
Every 7–10 days
Partial to full sun
60–75°F
40–60%
At a glance
How do you care for Adelinia grandis?
Water Adelinia grandis every 7–10 days, letting the top layer of soil dry out between waterings, and give it partial to full sun. It prefers temperatures of 60–75°F (16–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
What Is the Adelinia grandis?
Adelinia grandis (Adelinia grandis) belongs to the Boraginaceae family within the Adelinia genus.
Adelinia grandis displays a compact, clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Adelinia grandis produces small bell-shaped flowers in shades of blue, pink, or white.
Leaf size: approximately 4 inches.
How Often Should You Water a Adelinia grandis?
Adelinia grandis 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 Adelinia grandis Need?
Adelinia grandis thrives in partial to full sun.
Light Requirement
Partial to full sun
What Temperature and Humidity Does the Adelinia grandis Prefer?
Adelinia grandis grows best at temperatures of 60–75°F. Adelinia grandis prefers humidity levels of 40–60%.
Temperature
60–75°F
Humidity
40–60%
What Soil Mix Works Best for a Adelinia grandis?
Well-draining sandy loam with added organic matter. Good drainage is essential for Adelinia grandis to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Adelinia grandis?
Feed Adelinia grandis 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 Adelinia grandis?
Repot every 2-3 years 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 Adelinia grandis?
Adelinia grandis can be propagated through seeds, division of offsets.
Is the Adelinia grandis Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Adelinia grandis, 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 Adelinia grandis?
Adelinia grandis is susceptible to spider mites, aphids, whiteflies. 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 Adelinia grandis Need?
Adelinia grandis grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Adelinia grandis as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Adelinia grandis 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 Adelinia genus — compare its care with other Adelinia species on PlantoScan.
Adelinia is part of the Boraginaceae plant family — browse all Boraginaceae genera and species.
Adelinia grandis 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: Adelinia grandis (Douglas ex Lehm.) J.I.Cohen, family Boraginaceae (first published in Syst. Bot. 40: 617 (2015)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Adelinia grandis, 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.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- 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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