Swainsona formosa, Clianthus formosus, Clianthus dampieri

Ornamental groundcover with large black-centred red pea flowers over summer. Needs good drainage and a sunny position. Avoid watering on foliage. Moderately frost tolerant. In cultivation the desert pea is regarded as difficult and few people attempt to grow it. However it can be grown successfully in many areas if treated as an annual. Success is often reported by growing the plant in a deep container an a sunny, frost-free position. Propagation is best from seed which should be pretreated by scarification (using sheets of sandpaper) or by soaking in hot water. Seed is best sown where the plants are to be grown as seedlings are reported to be difficult to transplant. Sowing in late winter or early spring would be best if frost is a problem.

Swartzia arborescens, Possira arborescens

Swartzia arborescens is an evergreen tree with a flat or open crown.

Swartzia madagascariensis, Bobgunnia madagascariensis

This small, tropical tree can grow to 10-20 feet tall and prefers full sun and moderate amounts of water. The Mature plants are cold hardy to at least 30s F for a short time. The plant is suitable for USDA Zone 9-11.

In terms of growing and plant care, Swartzia madagascariensis can tolerate a variety of soils. It needs plenty of water but should be allowed to dry out somewhat in between waterings. It can take bright full sunlight, but it will benefit from some protection from the hottest part of the day during the hottest months of the year. Prune in late winter or early spring, before new growth emerges. In cold regions, it's best to grow it in a pot and bring it indoors for winter or place it in an area with some protection from the cold or wind. If this is done, the plant should be placed in a bright room, with plenty of light, and watered regularly.

Swietenia mahagoni

USDA Plant Hardiness Zone Map

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This large, evergreen tree can reach heights of up to over 20 feet, and its gracefully spreading branches give it an open, rounded crown. Its bark has a smooth, reddish-brown appearance which becomes increasingly ridged and furrowed with age. The green, glossy leaves are oblong in shape, and in a favorable setting, the tree can produce fragrant and beautiful flowers.

Swietenia mahagoni is native to the Caribbean islands and southern Florida and tends to thrive in areas with plenty of full sun and a consistently moist, well-drained soil. It does not tolerate drought, but it is still necessary to avoid overwatering. Regular waterings are important for young, immature plants, but older, established trees may only require it during extended periods of dryness.

It should be noted that once it is mature, the Swietenia mahagoni can tolerate short periods of time in temperatures as low as the mid-30s Fahrenheit with minimal damage. This makes it a great choice for growers in USDA Hardiness Zones 9-11 who would like to plant this unique, beautiful tree in their gardens.

For those who may be considering growing this tree in colder zones, the Swietenia mahagoni can be grown in a container and brought indoors during the winter months. This ensures that it is protected from the cold temperatures while still providing the tree with plenty of sun, water and other essential nutrients.

Overall, Swietenia mahagoni is a remarkable tree with a beautiful appearance and a very versatile, durable wood. There is a reason why it was the origin of the true mahogany woods, and when properly cared for, it can bring a great deal of beauty to a garden.

Swinglea glutinosa, Aegle decandra, Limonia glutinosa

Swinglea glutinosa is a small tropical tree from the Rutaceae family. Brought to South America from SE Asia, it is used as ornamental plant in Colombia and as a natural barrier in rural area and gardens. S. glutinosa possesses fruits, which are not edible, but have an extraordinary pleasant smell.

It is a subtropical plant, it grows up to an altitude of 5000 ft where the temperature rises to 100F in summer and drops to 20F in the winter, and prolonged droughts occur.

S. glutinosa is said to do best on rich, well-drained soil. The tree has no exacting cultural requirements, doing well with a minimum of fertilizer and irrigation.

Syagrus botryophora

Syagrus botryophora is a gorgeous palm, it has a fairly thin trunk, and the numerous fronds are gracefully arranged. Unfortunately, this palm, though now not uncommon in its native habitat, may someday face extinction due to the destruction of the forest in which it grows, as the forest canopy on which young plants depend for cover has almost been completely eradicated.

Syagrus coronata, Cocos coronata

Tall with single trunk and a large head of feathery leaves. Suited for Indoors, good for patios and verandas when small. It is a very attractive and fast growing palm and easy to grow in a sunny position with good drainage. Can be shifted even when large. Very easy palm with great decorative effect. Need to remove dead leaves every year. Well-drained acidic soils. Alkaline soils should be avoided. Not affected by lethal yellowing disease. Vulnerable toganoderma butt rot.

Syagrus Hybrids, Syagrus costae, Syagrus fexuosa, Syagrus picrophylla

Syagrus Hybrids, also known as the Syagrus X Costae, are a cross between the Syagrus Coronata and Syagrus Oleracea. They are a small tree, growing between 10-20 feet tall and can be grown in USDA Zone: 9-11.

In terms of growing and plant care, Syagrus Hybrids love full sun to semi-shade and require moderate water. They have become a popular choice amongst gardeners, as they grow well in the region and most species look like large palm or palm-like trees.

Syagrus Hybrids need to be taken care of if you live in a region that has cold temperatures. It is best to plant them in a pot or container and move it indoors when temperatures dip. During the spring season, these plants should be slowly reintroduced outdoors as the temperature rises. Fertilizing is also important as it helps to ensure that the Syagrus Hybrids get all the nutrients they need for growth. It is best to fertilize about every two to three months during the growing season.

Additionally, if you live in an area with high humidity, it is important to monitor the airflow around the Syagrus plants. Poor air circulation around the plants can lead to root rot and other diseases. Pruning should also be done regularly so that the plant remains healthy and vigorous.

Overall, Syagrus Hybrids are great plants that offer a unique look when added to any garden. With proper care and maintenance, they can be enjoyed for many years.

Syagrus romanzoffiana, Syagrus romanzoffianum, Arecastrum romanzzoffianum, Cocos australis, Cocos plumosa

It is a very attractive and fast growing palm and easy to grow in a sunny position with good drainage. Can be shifted even when large. Propagation: Fresh seeds in 2-4 months. Very easy palm with great decorative effect. best when planteed in groups or 2 or 3. Maintenance Moderate, need to remove dead leaves every year.

Syagrus schizophylla, Cocos schizophylla, Arikuryroba schizophylla

It grows near the sea. Growth rate: Slow. Salt tolerance: Very tolerant. Drought tolerance: Resistant. Minimum temperature: 27F.