Otholobium dreweae Plant Care
Otholobium dreweae C.H.Stirt. & Muasya
Updated · Sources · How we source care data
Psoralea dreweae is an upright shrublet assigned to the Pea family of about 15 cm (5.9 in) high, that appears after the vegetation burned down from the underground rootstock and forms mat-like clumps of hardly branching, leafy stems. The stems are set with stiff, entire, alternate leaves with a single leaflet and heads consisting of 12-18 initially dark pink, later white, pea-like flowers with a white nectar guide on a peduncle as long as the leaves at the end of the stem.
Every 7–10 days
Full sun to partial shade
60–80°F
40–60%
At a glance
How do you care for Otholobium dreweae?
Plant Otholobium dreweae 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 Otholobium dreweae?
Otholobium dreweae (Otholobium dreweae) belongs to the Fabaceae family within the Otholobium genus.
Otholobium dreweae displays a low spreading shrub growth habit, reaching up to 1.5 ft tall with a spread of approximately 2 ft. Otholobium dreweae produces small yellow pea-like flowers in clusters.
Leaf size: approximately 2 inches.
How Often Should You Water a Otholobium dreweae?
Water a young or newly planted Otholobium dreweae 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 Otholobium dreweae Need?
Otholobium dreweae thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Otholobium dreweae Prefer?
Otholobium dreweae tolerates temperatures of 60–80°F. Otholobium dreweae prefers humidity levels of 40–60%.
Temperature
60–80°F
Humidity
40–60%
What Soil Mix Works Best for a Otholobium dreweae?
Well-draining sandy loam with added organic matter. Good drainage is essential for Otholobium dreweae to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Otholobium dreweae?
Feed Otholobium dreweae 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 Otholobium dreweae?
Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter. Avoid low spots where water collects after rain.
Otholobium dreweae 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 Otholobium dreweae?
Otholobium dreweae can spread to about 2 ft (0.6 m) and reach about 2 ft (0 m) tall. Space plants about 2 ft (0.6 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 Otholobium dreweae?
Prune Otholobium dreweae 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 Otholobium dreweae in Winter?
Otholobium dreweae 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 Otholobium dreweae?
Otholobium dreweae can be propagated through seeds, cuttings. Similar propagation techniques also apply to otholobium pubescens plant care, which shares the same genus.
Is the Otholobium dreweae Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Otholobium dreweae, 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 Otholobium dreweae?
Otholobium dreweae is susceptible to aphids, leafhoppers, 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 Otholobium dreweae Need?
Otholobium dreweae grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Otholobium dreweae as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Otholobium dreweae 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 Otholobium genus — compare its care with other Otholobium species on PlantoScan.
Otholobium is part of the Fabaceae plant family — browse all Fabaceae genera and species.
Otholobium dreweae thrives in bright light and direct sun — see other bright-light plants.
More Otholobium Species
Other Otholobium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Otholobium dreweae C.H.Stirt. & Muasya, family Fabaceae (first published in Kew Bull. 71(2): ?? (2016)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Otholobium dreweae, 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.
