Crocus robertianus Plant Care
Crocus robertianus C.D.Brickell
Updated · Sources · How we source care data
Crocus robertianus is a species of flowering plant in the genus Crocus of the family Iridaceae. It is a cormous perennial native to northwestern and central Greece.
Every 7–10 days
Full sun to partial shade
50–75°F
40–60%
At a glance
How do you care for Crocus robertianus?
Water Crocus robertianus 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 50–75°F (10–24°C) and 40–60% humidity.
Where Is the Crocus robertianus Native To?
What Is the Crocus robertianus?
Crocus robertianus (Crocus robertianus) belongs to the Iridaceae family within the Crocus genus. Crocus robertianus is native to northwestern and central Greece.
Crocus robertianus displays a low-growing herbaceous perennial growth habit, reaching up to 0.5 ft tall with a spread of approximately 0.3 ft. Crocus robertianus produces showy, cup-shaped flowers in various colors.
Leaf size: approximately 6 inches.
How Often Should You Water a Crocus robertianus?
Crocus robertianus 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 Crocus robertianus Need?
Crocus robertianus thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Crocus robertianus Prefer?
Crocus robertianus grows best at temperatures of 50–75°F. Crocus robertianus prefers humidity levels of 40–60%.
Temperature
50–75°F
Humidity
40–60%
What Soil Mix Works Best for a Crocus robertianus?
Well-draining sandy soil with good organic content. Good drainage is essential for Crocus robertianus to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Crocus robertianus?
Divide and replant corms every 3-5 years. 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 Crocus robertianus?
Crocus robertianus can be propagated through division of corms, seeds. Similar propagation techniques also apply to alatau crocus plant care, which shares the same genus.
Is the Crocus robertianus Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Crocus robertianus, 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 Crocus robertianus?
Crocus robertianus is susceptible to aphids, thrips. 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 Crocus robertianus Need?
Crocus robertianus grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Crocus robertianus is native to northwestern and central Greece. In cooler regions, grow Crocus robertianus as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Crocus robertianus 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 Crocus genus — compare its care with other Crocus species on PlantoScan.
Crocus is part of the Iridaceae plant family — browse all Iridaceae genera and species.
Crocus robertianus thrives in bright light and direct sun — see other bright-light plants.
More Crocus Species
Other Crocus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Crocus robertianus C.D.Brickell, family Iridaceae (first published in J. Roy. Hort. Soc. 98: 362 (1973)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Crocus robertianus, 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 12a, 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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