Gardeners who are lucky enough to grow tropical plants without the aid of a greenhouse have an incredible array of plants from which to choose. Whether growing plants for their lush tropical foliage, fruits or flowers, there are a number of tropical outdoor garden plants that will flourish with a little care.
The blue passionflower (Passiflora caerulea) is a tropical plant that produces unusual blooms. Native to Brazil and Argentina, blue passionflower is a sprawling vine best left to its own devices. The plant is difficult to control and keep looking tidy. The plant grows best in loose, rocky soils. Good drainage is essential to the health of this plant. The blue passionflower thrives in full sunlight and will grow over just about any obstacle to get to the sun.
A native of India, ginger lily (Hedychium coronarium) is a notable for its delicate, white butterfly-attracting blooms, which appear in midsummer until autumn. The plant boasts broad, deep-green foliage. Ginger lily thrives in fertile, well-drained soil that's kept moist. The plant will grow in full sunlight or partial shade. The perennial plant will grow back year after year, provided the winter frosts aren't too severe.
Native to the tropics of South America, the papaya plant (Carica papaya) is widely considered to be one of the easiest tropical fruits to grow. Reaching a height of between 6 to 20 feet, papaya is a tree-like plant that boasts a smooth green succulent trunk accented by broad tropical leaves. The plant produces small waxy white flowers before giving way to fleshy, edible papaya fruits. Papaya plants require full sun to produce sweet fruits. Soil for the papaya plant should be fertile and well drained.