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Annuals in Rock Falls, IL Garden Center

Season Long Annual Flowers

Flowers that Continuously Bloom

At Selmi's Greenhouse & Garden Center, we grow and sell a wide variety of annual flowers in an assortment of different colors and brands such as Proven Winners, Selecta One, Wave, and Surfinia. This flower type is changed out every year and are perfect to fill out your garden and enjoy their blooms again and again. Be sure to mix our perennial flowers in to get a mixture of blooms throughout the year.

Petunia

Closeup photo of Proven Winners Annual purple Supertunia

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Height: 6-12 inches

Spread: 24-36 inches

Sunlight: 4-6 hrs

Watering: Average

Marigold

Closeup photo of Proven Winners Annual Marigold flowers.

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Height: 10-16 inches

Spread: 12-18 inches

Sunlight: 4-6 hrs

Watering: Average

Begonia

Closeup photo of Proven Winners Annual White Begonia flowers within flower garden.

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Height: 8-12 inches

Spread: 12-14 inches

Sunlight: 4-6 hrs

Watering: Average

Snapdragon

Closeup photo of Proven Winners Annual white and pink Snapdragon flowers assorted within flower garden.

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Height: 18-24 inches

Spread: 12-18 inches

Sunlight: 6+ hrs

Watering: Average

Verbena

Closeup photo of Proven Winners Annual purple Verbena flower in bloom.

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Height: 20-30 inches

Spread: 8-12 inches

Sunlight: 4-6 hrs

Watering: Average

Zinnia

Closeup photo of Proven Winners Annual golden yellow Zinnia flowers in pot.

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Height: 6-12 inches

Spread: 12-18 inches

Sunlight: 4-6 hrs

Watering: Average

Geranium

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Height: 10-12 inches

Spread: 12-20 inches

Sunlight: 4-6 hrs

Watering: Average

Coleus

Closeup photo of Proven Winners Annual black Coleus plant with green edges

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Height: 20-26 inches

Spread: 16-24 inches

Sunlight: 4-6 hrs

Watering: Average

Dusty Miller

Closeup photo of Proven Winners Annual frosty silver Dusty Miller flowers alongside edged garden.

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Height: 8-11 inches

Spread: 11-14 inches

Sunlight: 6+ hrs

Watering: Average

Pansies

Closeup photo of Proven Winners Annual deep red Pansies planted in container.

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Height: 6-10 inches

Spread: 12-16 inches

Sunlight: 4-6 hrs

Watering: Average

Impatiens

Closeup photo of Proven Winners Annual orange Impatiens in full bloom.

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Height: 10-15 inches

Spread: 12-14 inches

Sunlight: 4-6 hrs

Watering: Consistent

Portulaca

Closeup photo of Proven Winners Annual red Portulaca mixed with Marigolds in flower garden.

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Height: 4-8 inches

Spread: 12-16 inches

Sunlight: 6+ hours

Watering: Average

Our Best Selling Annuals

Explore a selection of our top-selling annual flowers below. If you're searching for a specific type or color of annual flower, feel free to contact us to inquire about availability.

Frequently Asked Questions

Whether you're new to gardening or a seasoned green thumb, we have a list of common annual flower questions. If you have a question regarding one of our annuals we have for sale at our garden center, feel free to contact us to learn more.

  • While annual plants are typically grown outdoors and complete their life cycle within a single growing season, some can survive indoors under the right conditions. However, not all annuals are well-suited for indoor cultivation, and their success indoors depends on factors like light, temperature, humidity, and care.

    Certain annuals, such as Coleus and Impatiens, can thrive indoors as houseplants if provided with sufficient light and moisture. They may need to be placed near a bright window or supplemented with artificial grow lights to ensure they receive enough sunlight.

    Other annuals, like Petunias and Marigolds, may struggle to adapt to indoor conditions and are better suited for outdoor planting.

  • The best month to plant annuals depends on your local climate and the specific requirements of the plants you're growing. In most regions, the optimal time for planting annuals is after the last frost date in spring.

    For many areas in temperate climates, this typically falls in April or May. Planting after the risk of frost has passed ensures that your annuals won't be damaged by cold temperatures.

    It's essential to consider the recommended planting times for the specific types of annuals you're growing, as some may prefer cooler temperatures in early spring, while others may thrive in the warmth of late spring or early summer.

    Additionally, planting annuals in the fall can also be an option in some regions, especially for cool-season annuals that prefer cooler temperatures for germination and growth.

  • Several annuals are known for their long blooming periods, often producing flowers continuously throughout the summer months. Here are some popular annuals that bloom prolifically all summer:

    1. Marigolds: Marigolds are sturdy annuals that bloom from late spring until the first frost. They come in various colors and sizes and are known for their resilience and vibrant blooms.

    2. Petunias: The Proven Winners Supertunia® and other brand name Petunias are versatile annuals available in a wide range of colors and patterns. They are self-cleaning, with no deadheading necessary and can bloom profusely from spring through fall, adding bright splashes of color to garden beds and containers.

    3. Zinnias: Zinnias are heat-tolerant annuals that thrive in full sun. They come in a variety of shapes, sizes, and colors, and many varieties bloom continuously throughout the summer months, attracting butterflies and pollinators to the garden.

    4. Verbena: Verbena is a drought-tolerant annual that produces clusters of small, colorful flowers from spring to fall. It's an excellent choice for sunny borders, hanging baskets, or containers.

    5. Cosmos: Cosmos are easy-to-grow annuals with delicate, daisy-like flowers that bloom continuously from early summer until the first frost. They attract butterflies and bees and make lovely additions to cottage gardens or wildflower meadows.

    6. Lantana: Lantana is a heat-loving annual that blooms profusely from late spring until fall. It's available in a variety of colors and attracts butterflies and hummingbirds to the garden.
       

    These annuals are just a few examples of plants that can provide continuous blooms throughout the summer months with proper care and maintenance. Deadheading spent flowers and providing adequate water and nutrients can help prolong their blooming period.

  • For areas with full sun, there are plenty of annuals that thrive in these conditions, providing vibrant colors and continuous blooms throughout the summer. Here are some of the best full sun annuals:

    1. Marigolds: Marigolds are sun-loving annuals available in various sizes and colors. They are easy to grow, drought-tolerant, and repel pests, making them popular choices for sunny garden beds and borders.

    2. Zinnias: Zinnias are heat-loving annuals that come in a wide range of colors, sizes, and shapes. They bloom prolifically in full sun and attract pollinators like butterflies and bees.

    3. Petunias: Petunias are versatile annuals that thrive in full sun and produce an abundance of colorful flowers throughout the summer. They are available in trailing, mounding, and upright varieties, making them suitable for beds, containers, and hanging baskets.

    4. Portulaca: Portulaca, also known as moss rose, is a drought-tolerant annual that thrives in hot, sunny conditions. It produces colorful, cup-shaped flowers that open in the sun and close at night, adding a cheerful display to garden beds and containers.

    5. Salvia: Salvias are sun-loving annuals with spikes of colorful flowers that attract hummingbirds and butterflies. They come in various heights and colors, including shades of blue, purple, red, and white, and are excellent for adding vertical interest to garden beds and borders.

    6. Vinca: Vinca, also known as Madagascar periwinkle, is a heat-loving annual with glossy green foliage and colorful flowers. It thrives in full sun and is tolerant of heat, drought, and poor soil conditions, making it an excellent choice for sunny landscapes and containers.
       

    These are just a few examples of full sun annuals that can thrive in sunny conditions, providing continuous blooms and vibrant colors throughout the summer season.

Get Inspired Today!

Explore our flower garden gallery for inspiration to plan your next home flower garden project. Images courtesy of Proven Winners.

Looking for some gardening inspiration? Explore Connie's Corner to discover helpful advice.

Illustration of flower stem with leaves.
Illustration of potted plant with blue and green color overlay.

Annuals at Our Garden Center Near You!

Located at 1206 Dixon Ave., Rock Falls, IL 61071