Photo: P JeganathanCC BY 4.0via iNaturalistresized / cropped
Red Sanders Plant Care
Pterocarpus santalinus L.f.
Updated · Sources · How we source care data
This plant is known for its striking dark red heartwood, which is used to make valuable furniture and dyes. Originating from India and Sri Lanka, its deep crimson color makes it highly sought after by plant collectors looking to add a rare and exotic touch to their collections.
Every 7–14 days
Full sun to partial shade
65–85°F
40–70%
At a glance
How do you care for Red Sanders?
Plant Red Sanders in full sun to partial shade (USDA zones 10a–12b) and water a young tree every 7–14 days until it is established. It tolerates temperatures of 65–85°F (18–29°C). Fertilize it every 6 months during the growing season.
Where Is the Red Sanders Native To?
What Is the Red Sanders?
Red Sanders (Pterocarpus santalinus) belongs to the Fabaceae family within the Pterocarpus genus. Red Sanders is native to southern India. Red Sanders is also known as Red Sandalwood, Saunderswood.
Red Sanders displays a tall, spreading tree growth habit, reaching up to 30 ft tall with a spread of approximately 20 ft. Red Sanders produces small, inconspicuous flowers in clusters.
Leaf size: approximately 6 inches.
How Often Should You Water a Red Sanders?
Water a young or newly planted Red Sanders every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–14 days
Until established; then in dry spells
What Light Does the Red Sanders Need?
Red Sanders thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Red Sanders Prefer?
Pterocarpus santalinus tolerates temperatures of 65–85°F. Red Sanders prefers humidity levels of 40–70%.
Temperature
65–85°F
Humidity
40–70%
What Soil Mix Works Best for a Red Sanders?
Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Red Sanders to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Red Sanders?
Feed Red Sanders every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees 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 Red Sanders?
Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.
Red Sanders is suited to USDA Zone 10a – 12b.
Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Red Sanders?
Red Sanders can spread to about 20 ft (6.1 m) and reach about 30 ft (9 m) tall. Space plants about 20 ft (6.1 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 tree spacing calculator.
How Do You Prune a Red Sanders?
Prune Red Sanders 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 tree in one year.
How Do You Care for a Red Sanders in Winter?
Red Sanders is frost-tender (hardy to USDA zone 10). 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 Red Sanders?
Red Sanders can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to kiaat plant care, which shares the same genus.
Is the Red Sanders Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Red Sanders, 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 Red Sanders?
Red Sanders is susceptible to aphids, caterpillars, scale insects. 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 Red Sanders Need?
Red Sanders grows outdoors in USDA Zone 10a – 12b. It survives winters down to planting zone 10a. Red Sanders is native to southern India. In cooler regions, grow Red Sanders as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10a – 12b
Keep exploring plants
Red Sanders 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 Pterocarpus genus — compare its care with other Pterocarpus species on PlantoScan.
Pterocarpus is part of the Fabaceae plant family — browse all Fabaceae genera and species.
Red Sanders thrives in bright light and direct sun — see other bright-light plants.
More Pterocarpus Species
Other Pterocarpus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Pterocarpus santalinus L.f., family Fabaceae (first published in Suppl. Pl. : 318 (1782)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Red Sanders, 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.
- Photo: P Jeganathan, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 10a – 12b, estimated from the plant's typical growing conditions.
- 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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