Alexandrian laurel Care (Calophyllum inophyllum)

This tropical evergreen thrives in strong light and benefits from consistent daily sun exposure outdoors.

• Provide 6–8 hours of direct sun daily, ideally with morning sun and light afternoon shade in very hot climates, which suits Alexandrian laurel in coastal areas.
• Young trees tolerate partial shade, but growth is denser and flowering heavier in full sun; aim for at least 4 hours of unshaded light.
• Watch foliage color and density; sparse, leggy shoots indicate insufficient light, while leaf scorch or bronzing suggests too much intense afternoon sun.

This coastal tree prefers steady moisture but is highly intolerant of waterlogged soil.

• In the ground, allow the top 5–8 cm of soil to dry slightly, then water deeply so moisture reaches the full root zone, especially during the first 2–3 years after planting.
• Reduce watering in cool or rainy seasons and increase during hot, dry, windy periods; mature Calophyllum inophyllum handles brief drought once well rooted.
• Poor drainage, yellowing leaves, and soft roots indicate overwatering, while dull, curling leaves and dry, hard soil signal the need for a thorough soak.

This species is strictly tropical and must be protected from cold conditions.

• Optimal growth occurs around 70–90°F (21–32°C), which supports active shoot growth and flower production in warm coastal and lowland landscapes.
• The tree is highly frost-sensitive; tissue damage occurs near 40°F (4°C), and prolonged exposure below 35°F (2°C) can kill young plants.
• Mature trees tolerate brief heat up to about 100°F (38°C) if soil moisture is adequate, but hot, dry winds increase leaf scorch risk and demand closer watering attention.

This coastal evergreen tolerates a wide humidity range but benefits from moderate moisture in the air.

• Aim for 40–70% humidity; levels near the lower end are usually acceptable for Alexandrian laurel.
• Curls or browning at leaf edges and slower growth can indicate air that is too dry for extended periods.
• Increase humidity outdoors by grouping plants near other vegetation, or indoors by placing trays of water and stones nearby without wetting the roots.

This species prefers loose, well-drained, sandy to loamy soil that does not stay waterlogged.

• Use a mix such as 50–60% sandy or loamy topsoil, 20–30% coarse sand, and 10–20% compost for structure and nutrients.
• Ensure rapid drainage; add coarse sand or fine gravel if water does not drain through within a few minutes after watering.
• Maintain slightly acidic to neutral pH, roughly 6.0–7.5, which supports nutrient availability for Calophyllum inophyllum.
• Avoid heavy, compacted clay or mixes rich in peat that stay wet for long periods, as these promote root decline and fungal problems.

This tree can be grown in containers when kept relatively small, though long-term size is limited.

• Choose a deep, heavy pot to counterbalance the developing woody crown and reduce the risk of tipping in wind.
• Leave a generous gap between soil surface and pot rim so thorough watering does not overflow when the mix settles.
• Select a container material that moderates moisture, such as thick-walled clay, to prevent prolonged saturation around the root zone.

Calophyllum inophyllum benefits from modest, steady nutrition but tolerates lean soils once established.

• Use a balanced slow‑release fertilizer or compost in spring to support new growth and flowering.
• Feed container or young Alexandrian laurel trees every 6–8 weeks during the warm growing season.
• Apply at 1/2–3/4 label strength to avoid salt buildup in coastal or sandy soils.
• Reduce or stop feeding in late fall and winter when growth slows.

Pruning Calophyllum inophyllum is mainly used to manage size, structure, and clearance rather than to maintain health.

• Carry out main pruning in late winter or very early spring before active growth.
• Remove dead, crossing, storm‑damaged, or low crowding branches that interfere with walkways or buildings.
• Use clean, sharp hand pruners or a pruning saw, making smooth cuts just outside the branch collar.
• Limit heavy canopy reduction to staged cuts over several years to avoid sunscald and stress.

This coastal tree is usually grown in the ground, so focus on careful transplanting of young Calophyllum inophyllum plants.

• Transplant in late spring or early summer once soil is warm and stable weather is likely.
• Look for roots circling the pot, slow growth, or plants toppling as signs a container seedling needs more space.
• Lift gently, tease apart circling roots, and set at the same depth in a hole 2–3× wider than the root ball.
• Water deeply after planting, then keep evenly moist and shaded for 1–2 weeks to limit transplant shock.

New Calophyllum inophyllum plants are usually raised from seeds, with rooting cuttings considered more advanced work.

• Collect fully mature, fallen fruits and remove the pulp before sowing the seeds.
• Sow in late spring to early summer in a warm, bright spot with a free‑draining, sandy mix.
• Maintain steady warmth around 75–85°F and light, consistent moisture to support slow, uneven germination.
• For semi‑hardwood cuttings, use rooting hormone, bottom heat, and high humidity, expecting variable success.

This tropical tree is frost sensitive and needs protection in regions with cool winters.

• In USDA zones colder than 10, grow Calophyllum inophyllum in large containers that can be moved indoors.
• Before first frost, shift pots to a bright, frost‑free space kept above 50°F.
• In mild coastal climates, apply a 5–8 cm mulch layer over the root zone to buffer short cool spells.