Echium angustifolium subsp. sericeum Plant Care
Echium angustifolium subsp. sericeum (Vahl) Klotz
Updated · Sources · How we source care data
Every 7–14 days
Full sun
50–80°F
40–60%
At a glance
How do you care for Echium angustifolium subsp. sericeum?
Water Echium angustifolium subsp. sericeum every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 50–80°F (10–27°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
What Is the Echium angustifolium subsp. sericeum?
Echium angustifolium subsp. sericeum (Echium angustifolium subsp. sericeum) belongs to the Boraginaceae family within the Echium genus.
Echium angustifolium subsp. sericeum displays a tall, spiky perennial growth habit, reaching up to 4 ft tall with a spread of approximately 2 ft. Echium angustifolium subsp. sericeum produces tall spikes of small blue, pink, or purple flowers.
Leaf size: approximately 4 inches.
How Often Should You Water a Echium angustifolium subsp. sericeum?
Echium angustifolium subsp. sericeum requires watering every 7–14 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 7–14 days
Let soil partially dry between waterings
What Light Does the Echium angustifolium subsp. sericeum Need?
Echium angustifolium subsp. sericeum thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Echium angustifolium subsp. sericeum Prefer?
Echium angustifolium subsp. sericeum grows best at temperatures of 50–80°F. Echium angustifolium subsp. sericeum prefers humidity levels of 40–60%.
Temperature
50–80°F
Humidity
40–60%
What Soil Mix Works Best for a Echium angustifolium subsp. sericeum?
Well-draining sandy soil with added organic matter for moisture retention. Good drainage is essential for Echium angustifolium subsp. sericeum to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Echium angustifolium subsp. sericeum?
Feed Echium angustifolium subsp. sericeum 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 Echium angustifolium subsp. sericeum?
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 Echium angustifolium subsp. sericeum?
Echium angustifolium subsp. sericeum can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to boissier's viper's-bugloss plant care, which shares the same genus.
Is the Echium angustifolium subsp. sericeum Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Echium angustifolium subsp. sericeum, 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 Echium angustifolium subsp. sericeum?
Echium angustifolium subsp. sericeum 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 Echium angustifolium subsp. sericeum Need?
Echium angustifolium subsp. sericeum grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. In cooler regions, grow Echium angustifolium subsp. sericeum as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Echium angustifolium subsp. sericeum 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 Echium genus — compare its care with other Echium species on PlantoScan.
Echium is part of the Boraginaceae plant family — browse all Boraginaceae genera and species.
Echium angustifolium subsp. sericeum thrives in bright light and direct sun — see other bright-light plants.
More Echium Species
Other Echium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Echium angustifolium subsp. sericeum (Vahl) Klotz, family Boraginaceae (first published in Wiss. Z. Martin-Luther-Univ. Halle-Wittenberg, Math.-Naturwiss. Reihe 11: 298 1962) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Echium angustifolium subsp. sericeum, 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.
Identify Plants Like the
Echium angustifolium subsp. sericeum Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species