African teak Care (Milicia excelsa)

This large tropical tree needs strong outdoor light to build dense, straight growth.

• Provide 6–8 hours of direct sun daily, ideally strong morning and midday sun; young African teak seedlings benefit from light afternoon shade to limit leaf scorch.
• Tolerates partial shade (around 3–4 hours of direct sun) but growth slows and trunks may become more slender or leaning toward the light.
• Avoid deep shade, which causes sparse foliage and weak stems, and reduce exposure to reflected heat from walls or pavement in very hot, dry seasons.

This species prefers consistently moist, deep soil but suffers if roots stay saturated for long periods.

• In the ground, water when the top 5–8 cm of soil feels dry, giving a long soak so moisture reaches 30–40 cm depth, especially during the first 2–3 years.
• Use well-drained loam or sandy loam; poor drainage, standing water, or foul smell near roots suggests overwatering and increases risk of root rot.
• During hot, dry seasons, watch Milicia excelsa for dull, drooping leaves as a sign to water; in cooler or rainy periods, extend intervals and rely more on natural rainfall.

This tropical hardwood tree needs warm, frost-free conditions for reliable growth and long-term survival.

• Optimal growth occurs around 77–90°F (25–32°C); active shoot extension and leaf production decline noticeably below this range.
• Trees are very sensitive to cold and should not be exposed below about 50°F (10°C); brief drops toward 45°F (7°C) can cause leaf yellowing and stress.
• Frost is usually lethal, and heat above 100°F (38°C) can scorch leaves unless soil moisture is stable and roots are insulated with mulch during hot, dry periods.

This species tolerates a fairly wide humidity range but grows best with moderately moist air.

• Aim for 40–60% humidity for African teak, similar to most temperate indoor environments.
• Leaves may show brown tips, edge crisping, or slowed growth if air stays very dry for extended periods.
• Increase humidity locally by grouping plants, placing the container on a pebble tray with water below the pot base, or using a small humidifier nearby.

Milicia excelsa prefers deep, fertile, well-structured soil that drains freely yet holds some moisture.

• Use a loamy mix with both mineral and organic parts, such as 50% garden loam, 30% compost, and 20% coarse sand or fine gravel.
• Ensure rapid drainage while retaining moisture by adding coarse sand or grit rather than fine, compacting sand.
• Target a slightly acidic to neutral pH around 6.0–7.0, avoiding strongly acidic or saline substrates that restrict root development.
• Prevent waterlogging by avoiding heavy, unamended clay and breaking up compacted layers so roots can penetrate and access oxygen.

This tree is generally unsuitable for long-term container growing, but short-term container culture of young plants is possible.

• Choose a deep, heavy container to counteract top-heaviness and reduce the risk of the pot tipping in wind.
• Use a free-draining mix and raise the container slightly on feet or bricks so drainage holes never sit in pooled water.
• Position the container where roots are shaded from intense sun to limit overheating and excessive moisture loss through the pot walls.

Milicia excelsa grows well in reasonably fertile soil but benefits from light, targeted feeding in cultivation.

• Use a balanced slow-release fertilizer (around 10-10-10) or well-rotted compost at the start of the warm growing season.
• Feed young or container-grown trees every 8–10 weeks during active growth, avoiding heavy applications.
• Apply fertilizers at 1/2 strength for container plants to limit salt buildup and root burn.
• Stop feeding in late fall and avoid fertilization during the cool dormant period to prevent weak, tender growth.

Pruning Milicia excelsa focuses on structural training and removal of weak wood rather than frequent shaping.

• Carry out main pruning in late dry season or late winter, before vigorous new growth starts.
• Remove dead, damaged, crossing, or inward-growing branches to improve airflow and light penetration.
• Use clean, sharp bypass pruners or a pruning saw, making smooth cuts just outside the branch collar.
• Limit heavy crown reduction; instead, guide young trees by selecting a single strong leader and well-spaced scaffold branches.

This species is usually field-grown, so management centers on transplanting young Milicia excelsa trees from nursery bags or pots to the ground.

• Transplant when roots just fill the container, with some circling visible but not tightly pot-bound.
• Aim to plant out during the warm rainy season for reliable soil moisture and faster root establishment.
• Transplant every 1–2 years while young, shifting to progressively larger containers or a final ground position.
• Minimize stress by watering well before and after planting, handling the root ball gently, and shading the tree for 1–2 weeks if sun is intense.

Milicia excelsa is typically propagated by seed, with vegetative methods used mainly in specialized setups.

• Collect ripe seeds, clean the pulp, and sow in late spring to early summer in a free-draining, sterile mix.
• Provide warmth around 75–85°F, consistent moisture, and bright shade for even germination.
• Use semi-hardwood cuttings only under controlled conditions: high humidity, bottom heat, and rooting hormone.
• Thin seedlings gradually and transplant once they are sturdy, avoiding disturbance of the main taproot.

African teak is a tropical tree that has low tolerance to frost and needs protection in climates with cold winters.

• In marginal climates, grow in large containers so plants can be moved indoors or to a heated greenhouse before temperatures drop below 40°F.
• Indoors, place in bright light and keep temperatures above 60°F with moderate, even moisture.
• In frost-free areas, a light organic mulch around the root zone can moderate soil temperature and conserve moisture.