Flax-leaved allseed Plant Care
Radiola linoides Roth
Updated · Sources · How we source care data
Radiola linoides is the sole species in the Radiola genus, a monotypic genus of flowering plants belonging to the family Linaceae. It has the common names of 'allseed' and 'flaxseed'.
Every 7–10 days
Full sun to partial shade
60–80°F
40–70%
At a glance
How do you care for Flax-leaved allseed?
Plant Flax-leaved allseed in full sun to partial shade (USDA zones 13a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 60–80°F (16–27°C). Fertilize it every 6 months during the growing season.
What Is the Flax-leaved allseed?
Flax-leaved allseed (Radiola linoides) belongs to the Linaceae family within the Radiola genus.
Flax-leaved allseed displays a low rosette, spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Flax-leaved allseed produces small, white, star-shaped flowers.
Leaf size: approximately 0.5 inches.
How Often Should You Water a Flax-leaved allseed?
Water a young or newly planted Flax-leaved allseed every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the Flax-leaved allseed Need?
Flax-leaved allseed thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Flax-leaved allseed Prefer?
Radiola linoides tolerates temperatures of 60–80°F. Flax-leaved allseed prefers humidity levels of 40–70%.
Temperature
60–80°F
Humidity
40–70%
What Soil Mix Works Best for a Flax-leaved allseed?
Well-draining sandy soil with a mix of peat moss and perlite. Good drainage is essential for Flax-leaved allseed to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Flax-leaved allseed?
Feed Flax-leaved allseed every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Flax-leaved allseed?
Choose a spot with full sun to partial shade and well-draining sandy soil with a mix of peat moss and perlite. Avoid low spots where water collects after rain.
Flax-leaved allseed is suited to USDA Zone 13a.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Flax-leaved allseed?
Flax-leaved allseed can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Flax-leaved allseed?
Prune Flax-leaved allseed while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Flax-leaved allseed in Winter?
Flax-leaved allseed is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Flax-leaved allseed?
Flax-leaved allseed can be propagated through seeds, division of clumps.
Is the Flax-leaved allseed Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Flax-leaved allseed, 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 Flax-leaved allseed?
Flax-leaved allseed is susceptible to aphids, spider mites, 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 Flax-leaved allseed Need?
Flax-leaved allseed grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Flax-leaved allseed as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Flax-leaved allseed 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 Radiola genus — compare its care with other Radiola species on PlantoScan.
Radiola is part of the Linaceae plant family — browse all Linaceae genera and species.
Flax-leaved allseed 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: Radiola linoides Roth, family Linaceae (first published in Tent. Fl. Germ. 1: 71 (1788)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Flax-leaved allseed, 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.
