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Searsia lancea
african sumac
Searsia lancea
Searsia lancea, commonly known as the Karee, is a small to medium-sized evergreen tree native to southern Africa. It is exceptionally hardy, known for its resistance to drought, frost, and heat. The tree features a graceful, weeping habit with trifoliate leaves (three lance-shaped leaflets), which gives it a willow-like appearance. The bark is dark brown and rough on mature trunks. It produces inconspicuous, small, greenish-yellow flowers in spring, followed by clusters of small, flattened, reddish-brown to black berries. These berries are edible and are a valuable food source for birds and wildlife. Due to its hardiness and non-aggressive root system, it is a popular choice for gardens, parks, and street planting, often used for shade, screening, or as a specimen tree.
CategoryDetails
Plant TypePerennial plant
Culinary UsageEdible plant
Medicinal UsageMedicinal Usage
Duration to maturity3 years, 6 months to harvest
Estimated Plant Lifespan75 years lifespan
Sun Requirements6+ hours direct sunlight (Full Sun)
Pollination

Method: Animal

Notes: The species is dioecious, meaning male and female flowers are on separate plants. Pollination is primarily done by insects like bees. For fruit and seed production, both male and female plants must be planted in proximity.

Watering Requirements

Method: Top water

Frequency: Water deeply and thoroughly after planting until established. Once established, it is extremely drought-tolerant and requires watering only during prolonged, severe droughts. Allow soil to dry out completely between waterings.

Notes: This plant is highly susceptible to root rot from overwatering. It is an excellent candidate for xeriscaping and water-wise gardens.

Humidity Requirements

Level: Low

Maintenance: No special maintenance required. It is well-adapted to dry air and does not require misting or humidity trays.

Care InstructionsVery low maintenance. Can be left to grow in its natural multi-stemmed, shrub-like form or pruned in late winter to develop a single-trunk tree structure. Remove any dead or crossing branches to maintain health and shape.
Temperature Range

Min: -6°C

Max: 42°C

Alternative NamesKaree-rhus, Rhus viminalis, Rhus lancea, Bastard Willoa, Bastard Willow, Common Karee, Common Karee Tree, Karee Tree, Karoo Tree, Karoo-Tree, Kareeboom, Willow Crowberry, Willow Rhus, Karree, Karee
Dietes grandiflora
Large Fortnight Lily
Dietes grandiflora
Both are hardy, drought-tolerant South African natives requiring full sun. The Iris's stiff, upright, strap-like foliage and large white flowers provide a beautiful structural and textural contrast to the fine, weeping foliage of the Karee tree.
Tulbaghia violacea
Society Garlic
Tulbaghia violacea
This plant shares the Karee's preference for full sun and tolerance for dry conditions. Its clumps of mauve, star-shaped flowers add colour at the base of the tree, and its garlic scent may help deter common garden pests.
Agapanthus praecox
blue lily
Agapanthus praecox
Shares similar sun and low-water requirements once established. The bold, spherical blue or white flower heads of the Agapanthus create a striking visual contrast against the delicate foliage of the Searsia lancea.
Zantedeschia aethiopica
calla lily
Zantedeschia aethiopica

The Arum Lily thrives in moist, boggy, and rich soil, which is in direct opposition to the well-drained, dry conditions preferred by the established Searsia lancea. Planting them together would make it impossible to meet the watering needs of both, leading to one or both plants failing to thrive.

Betula pendula
silver birch
Betula pendula

Silver Birch trees have shallow, dense root systems and a high water requirement. They would aggressively compete with the drought-tolerant Karee for water and surface-level nutrients, likely stunting the Karee's growth.

Aphids

Small, sap-sucking insects that cluster on new growth and the undersides of leaves. Infestations can cause leaf yellowing, distortion, and stunted growth. They excrete a sticky substance called honeydew, which can lead to sooty mold.

Scale Insects

Immobile, sap-sucking pests that appear as small bumps on stems and leaves. They feed on plant sap, which can weaken the tree over time, causing yellowing leaves and branch dieback in severe cases.

Steps:

    • Take 10-15 cm long cuttings from the current season's growth in late summer or autumn, ensuring they are firm but not fully woody.
    • Remove the leaves from the lower two-thirds of the cutting.
    • Dip the cut end into a rooting hormone powder to encourage root development.
    • Insert the cuttings into a pot filled with a well-draining medium like a mix of river sand and compost.
    • Water well and place in a warm, protected location out of direct sunlight. Keep the soil consistently moist but not waterlogged.
    • Collect seeds from ripe (darkened) berries directly from the tree.
    • Remove the fleshy pulp by rubbing the seeds together in water, as the pulp contains germination inhibitors.
    • Sow the cleaned seeds in a tray with a well-draining seedling mix.
    • Cover lightly with soil and keep moist in a warm place. Germination can be slow and sporadic, taking several weeks to months.

Neem Oil

A natural, broad-spectrum insecticide and fungicide to control pests like aphids and scale insects without harming the plant or beneficial insects.

Rooting Hormone Powder

To significantly increase the success rate of propagation from cuttings by stimulating root formation.

Well-rotted Compost

To mix into the soil at planting time. It improves soil structure and provides slow-release nutrients for healthy establishment without being overly rich.