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Plant care

African Tamarisk (African salt cedar) care

Tamarix africana

Also called African tamarisk, African salt cedar, Black tamarisk.

RHS H6USDA 6-9Pet-safeIndoor Up to 7 m (23 ft) tall and 5 m (16 ft) wide in ideal conditions.

Watering rhythm

Direct sun (at least 4-6 hours)

Low once established; moderate during establishment

Light

Direct sun (at least 4-6 hours)

Soil

Well-drained sandy or loamy; tolerates saline and clay

Humidity

Low to moderate

Temp

-15 to 35°C

Pet safety

Pet-safe

Mature size

Up to 7 m (23 ft) tall and 5 m (16 ft) wide in ideal conditions.

Care at a glance

Light

Most houseplants will scorch where african tamarisk thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Requires a minimum of 6–8 hours of direct sun daily; growth becomes weak and flowering is poor in any shade. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for low once established; moderate during establishment for african tamarisk, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Water regularly in the first season to encourage root establishment; once established it tolerates prolonged drought and is well-suited to xeric coastal gardens.

Soil and pot

African Tamarisk grows best in well-drained sandy or loamy; tolerates saline and clay. Extremely adaptable — thrives in poor, sandy, or brackish soils; avoid waterlogged conditions which invite root rot. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

African Tamarisk sits happiest at around Low to moderate humidity and -15 to 35°C (5 to 95°F). Native to exposed coastal and semi-arid environments; tolerates salt-laden maritime air and low atmospheric humidity well. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed african tamarisk sparingly. Feed sparingly — apply a balanced granular fertiliser once in early spring only if growth is poor; excess fertiliser in rich soil is unnecessary. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on african tamarisk in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Scale insects (latania and oystershell scale)Scale insects, particularly latania and oystershell scale, frequently colonise stems and bark; treat with horticultural oil spray in late winter before growth flushes.
  • Invasive spreadListed as invasive in parts of the US and Australia; remove seed heads promptly before dispersal and avoid planting near riparian corridors or native dune systems.

Propagation

Hardwood cuttings taken in winter root very readily — insert 15–20 cm sections directly into moist sandy compost or in situ in damp soil; semi-ripe cuttings in summer also succeed. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

African Tamarisk is pet-safe. Tamarix africana is not listed as toxic to cats or dogs by the ASPCA; the genus is generally regarded as non-toxic, though the salt secreted onto leaf surfaces can occasionally cause mild skin irritation in sensitive individuals. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

African Tamarisk care — frequently asked questions

What is the common name for Tamarix africana?

Tamarix africana is most commonly called African Tamarisk, but it is also known as African tamarisk, African salt cedar, Black tamarisk. The names refer to the same species, so care instructions for African Tamarisk apply identically to anything sold as African salt cedar.

How much light does african tamarisk need?

African Tamarisk grows best in direct sun (at least 4-6 hours). Requires a minimum of 6–8 hours of direct sun daily; growth becomes weak and flowering is poor in any shade.

How often should I water african tamarisk?

Water african tamarisk low once established; moderate during establishment. Water regularly in the first season to encourage root establishment; once established it tolerates prolonged drought and is well-suited to xeric coastal gardens. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is african tamarisk toxic to cats and dogs?

African Tamarisk is pet-safe. Tamarix africana is not listed as toxic to cats or dogs by the ASPCA; the genus is generally regarded as non-toxic, though the salt secreted onto leaf surfaces can occasionally cause mild skin irritation in sensitive individuals.

What USDA hardiness zone does african tamarisk grow in?

African Tamarisk is rated for USDA zone 6-9 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

African Tamarisk deep-dive guides

Every aspect of african tamarisk care, each with its own calibrated guide:

Featured in these plant shortlists

African Tamarisk qualifies for 11 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

African Tamarisk is also known as African tamarisk, African salt cedar, and Black tamarisk.