annual plants
Annual plants germinate, grow, flower, produce seeds, and die, all in one growing season. The first frost usually signals the end of the season for annuals, and most must be replanted each year. Some will produce seeds if the flowers are left to produce seed heads and return the following year. Many gardeners grow annuals for seasonal color alongside existing perennials, shrubs, and trees. They come in all shapes, sizes, and colors. Some produce stunning flowers, while others are all about striking foliage. Types of annuals include:
Petunias: They are generally grown as annuals in most climates. You can find them in almost any color, including black, as well as striped, veined, and speckled patterns. The variety of flower shapes is also impressive, from small to palm-sized in single or double blooms with wavy, fringed, or plain edges. For its cultivation, it will have to be done in spring, after the threat of frost has passed. For best yield, plant in full sun (at least six hours a day). They will tolerate some shade, but may not flower as prolifically.
Verbena: This annual is summer drought tolerant and blooms all season long, with miniature bouquets bursting with bright color, they can be used as a filler to form a carpet in the garden or as a spill in your containers. Verbena normally regrow quickly and new varieties do not need to be dead to encourage successive flowering. It can also be noted that its colorful and scented flowers provide a rich source of nectar for pollinators, attracting hummingbirds, bees and many types of butterflies.
Calibracho: These popularly colored plants bloom continuously from seed until frost. These trailing plants are great for containers, hanging baskets. The plants have compact, somewhat sticky, oval green leaves and small flowers that resemble petunias. They bloom in a wide range of solid colors, bicolors, stripes, patterns, and doubles. Combine them with taller plants such as angelonia, coleus, African daisy, purple fountain grass, zonal geranium or Persian shield. Add fillers like coral bells, lantana, marigolds, or rushes.
Geraniums: Geraniums are prized for their long blooming season, which begins in spring and can last into fall. They can bloom at temperatures above 40 degrees Celsius (XNUMX degrees Fahrenheit), and can also bloom in winter in a variety of shades of white, red, pink, violet, mauve, orange, and reddish-black. Most grow best in full sun. True varieties like partial shade, and zonal areas will tolerate some shade. In extremely hot climates, some afternoon shade should be provided.
Marigolds: they are one of the favorite and uncomplicated annuals that you can have in your garden. There are varieties available from 15 centimeters to 1,2 meters high and from 15 centimeters to 0,5 meters wide, they are available in shades of orange and yellow; some with reflections of red, gold and copper. There are more than 50 types of this plant, among which are the French, the African and the signet. Additionally, it is not related to the common yellow and orange marigolds that most people are familiar with, but it is an herb that is often grown for medicinal purposes.
Periwinkle: While most impatiens wilt in hot, dry weather, vinca is undeterred by the intense heat of summer, making it a favorite choice for gardens. They produce a large number of small, colorful flowers throughout the summer. They are generally 12 to 24 inches tall and wide, with the exception of dwarf and creeping types. Vincas like their soil to be dry, so only water when the top inch of soil feels dry to the touch or when rainfall isn't enough to supply an inch of water per week.
Zinnias: it is one of the easiest annuals to grow and its flowers bring a variety of colors. They grow quickly and reliably, making them a great choice for beginning flower growers, also considering their low maintenance requirements. There are dwarf varieties 6 to 12 inches tall and wide, and others grow up to 4 feet tall and 1 to 2 feet wide. Zinnias are safe to plant where animals frequent because they are non-toxic. Additionally, they come in a wide variety of flower shapes with star, daisy, dahlia, spider, button, dome, and feather-leaved cactus shapes.
Ageratum: A rarity in the gardening world, it is highly coveted by avid gardeners. It is grown for its whimsical, pom-pom-shaped flowers, which are found primarily in shades of blue, although colors also include white, pink, lavender, and red. They will bloom best in full sun; too much shade can result in fewer blooms and leggy plants. In warmer regions, the plants benefit from afternoon shade.
Gumbo: Known as summer snapdragon, the delicate tubular flowers are a magnet for hummingbirds, butterflies, and pollinating insects. With a wide range of flower colors and shapes to choose from, this annual is a versatile addition to any garden. Its upright flower spikes up to 8 inches long produce dozens of 3/4-inch flowers on a single stem. The flowers are two-lipped and slightly tubular, in violet, blue, pink, red, lavender, coral, white and bicolor colors.
Impatience: It is a herbaceous cultivated as an annual in most regions, which flowers in late spring until the first frost. It can reach 8 to 12 inches tall for its small varieties, however, if the garden is large, heights of 3 feet can be achieved. They can be planted in window boxes or hanging baskets, in front of a border or as a ground cover under trees and shrubs.
Begonias: They have tropical and subtropical origins. Some are grown for their asymmetrical, patterned, and variegated foliage, and others to add color to shady areas of the garden with their bright flowers. Varieties vary, from 6- to 12-inch houseplants to bushy plants 5 feet tall or more. Blooming time can vary depending on the type; for example, tuberoses bloom from early summer until frost. They can also vary if grown indoors, and some types bloom year-round.
Sweet Potato Vine: It is a warm-season ornamental annual grown for its attractive leaves and vining habit. The foliage adds a tropical touch to the garden and comes in a range of variegated colors and shapes. They can grow up to 10 feet long and are most often used as a trailing accent in containers. They can also be used as a ground cover or on a trellis. Newer varieties have been developed to resist disease, offer a wider range of leaf colors and shapes, and offer compact sizes that are suitable for containers and small spaces.
Advantages of plants
Annuals are easy to grow and offer vibrant blooms for instant impact, stand out for their versatility and can be grown in pots, hanging baskets or containers. It is important to note that if planted and cared for properly, many of these annuals will flower soon after planting. Additionally, they can be found in a variety of color options including purple, pink, blue, red, yellow, coral, orange, white, and even black and two-tone. Their adaptability allows them to be grown in both sun and shade, and they are low-maintenance plants.
Disadvantages of plants
Unlike perennials that return year after year, they complete their life cycle in a single season and need to be replanted every year. Many of these annuals require deadheading or removal of spent shoots to keep them blooming, so keep track of their growth process. These plants often benefit from frequent application of fertilizers to keep them looking their best. Daily watering is usually necessary, especially in summer.
Cultivation
When it comes to growing these garden favorites, you have two options: buy the flowering plants or start from seed. Whichever you choose, the important thing is that you follow a few tips for planting these types of plants in the landscape: When planting young annuals, be sure to give them enough room to reach their full size, add slow-release fertilizer to a planting hole so their plants are off to a good start and consider planting them where they will receive the right amount of light.
Another factor to consider is checking the weather, it is safer to plant when all danger of frost has passed. If the roots are twisted and dense when you pull them out of the pot, loosen them up a bit by hand or run a knife around the sides. Water your new plants well immediately after planting. Also, try to cover the ground sufficiently by spreading a layer of mulch after planting to complete the look, reduce water loss, and prevent weeds.
Classification of annual plants
Annuals can be divided into three groups: hardy, moderately hardy, and tender, based on their cold tolerance. This classification will determine how far from the last frost date in spring they can be planted, which will vary by location. We start by saying that hardy annuals do well in cooler climates. They are able to withstand freezing temperatures and can be planted earlier. This class will also do well if planted in the fall when temperatures begin to drop.
Semi-hardy annuals will tolerate a touch of frost, and most annuals fall into this category. If a surprise spring frost arrives, be prepared to cover them overnight. While tender annuals cannot withstand frost and most are native to tropical or subtropical climates. Their growth may be stunted in cooler climates, especially if they are above freezing, as they should not be planted until late spring.
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