Most spring gardens are filled with colorful displays of annual and perennial flowers, as spring is the time of year when most plants bloom and "spring" back to life after winter. Of course, where you live in the world will determine when your spring arrives. Gardeners in the Northern hemisphere experience spring March through May and those living in the Southern hemisphere experience spring September through November. Regardless of your whereabouts and gardening experience, the large variety of flowers blooming at this time of year gives you a vast array of choices.
Depending on where you live, wax begonia (Begonia semperflorens) acts as either a perennial or annual spring flower. Those living in tropical areas of the United States can grow wax begonias as a perennial. Plants grow up to 1 foot tall and wide, producing flowers in white, pink or red. Some wax begonia cultivars have maroon-tinged leaves. These plants prefer growing in sunny to partial sun conditions and they have a low drought tolerance, preferring regular watering. Wax begonias' bunching habit makes them suitable for hanging baskets, containers, a low groundcover or as a border plant.
Africa iris (Dietes iridoides) is a slow-growing perennial with flowers blooming on long spikes in springtime. The flowers are a mix of white, yellow and blue and will bloom throughout summer. The plant's spiky leaves reach 2 to 6 feet at maturity with a spreading habit of 1 to 2 feet. Africa iris prefers growing in sun to partial sun and has medium watering requirements. It can be grown in containers, as a border plant or for filling in bare spots within the garden. The plants have no to few pest problems.
Daylilies (Hymenocallis) grow throughout the United States as perennials. The flower color depends on the cultivar, of which there are many. Daylilies can quickly reach a height of 1 to 3 feet with a 3-foot spread. Plants will multiply in the landscape by underground bulbs. Daylilies prefer growing in full sun and have medium water requirements. They make good additions to native and naturalized gardens offering a bounty of springtime blooms. The plants will also do well in containers.
Pot marigolds (Calendula) are cousins to the standard garden marigold, with edible flowers used in salads. Thought to have insect-repelling qualities as the standard garden marigold, these annuals are companion plants in many vegetable gardens. Pot marigolds reach 1 to 2 feet in height and width and prefer growing in full sun with low water requirements, though regular watering is preferred. Pot marigolds bloom in colors of yellow or orange in springtime and make nice filler plants in spring gardens. They also work well planted inside containers.