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Araucaria

Genus of 18 species of evergreen, coniferous trees from tropical rainforest with a pronounced dry season in New Guinea, Australia, New Hebrides, New Caledonia, Norfolk Island, and Brazil. Araucaria heterophylla is the only species sold as s house plant. It is a slow-growing tree.
The leaves are spirally arranged and are usually broadly triangular to needle-like. Male and female cones are green, maturing to brown, and are normally produced on separate trees. The female cones are spherical, ovoid or ellipsoid. The male cone are conical or cylindrical. Araucaria will grow to about 5 ft.
Keep it pot-bound to restrict growth
Average warmth in summer.Keep it away from other plants in a quiet corner, where people do not constantly bump into it. It must have a half shady position in a cool, well-ventilated environment.
 Keep cool in winter.Semi-shade or bright light - avoid summer sun. Grow in soil-based potting mix.
Water regularly from spring to autumn. Water sparingly in winter. Mist leaves occasionally, especially if room is heated in winter. Ventilate in summer.
Propagation.
Difficult - best to buy plants. Sow seed as soon as ripe. Take cuttings, 3-4 in (7-10 cm) long, of vertical shoot tips at midsummer and root in a cold frame. Cuttings of the horizontal side branches will never form an erect tree.
Pests and diseases.
Mealy bugs and occasionally thrips may occur. If some of the branches die or wilt in winter it is practically always the result of too high a temperature and poor light.

Origin: Norfolk Island
Height: 6 ft (1.8 m)
Light: Bright light with some full sun.
Water: Keep the soil evenly moist in the spring and summer, lightly moist in winter.
Humidity: Moderate room humidity.
Temperature: Average room temperatures 60-75°F, 16-24°C. From October onward the ideal temperature is between 5 and 10 C.
Soil: Any good potting mix.
Fertilizer: Feed every 2 weeks spring through fall with a balanced liquid fertilizer diluted by half.

Propagation: Can be grown from seed, although it will take several years to reach the size of a purchased plant.

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