How To Grow Pansies And Violas For Color In Cool-Season Gardens
Pansies and violas are cool-season flowers that perform best in mild temperatures, moist but well-drained soil, and full sun to partial shade. In Colorado, fall planting gives pansies and violas time to establish roots before colder weather arrives and provides color after many summer annuals have faded. Pansies and violas are very hardy and can be planted in late winter or early spring before the average last frost because they tolerate cooler soil and air temperatures.
Both violas and pansies work well in containers, window boxes, garden borders, entryway plantings, and mixed fall displays. Let’s explore how to grow pansies and violas, including when to plant, how to water, and the best temperatures for beautiful blooms.
What Is The Difference Between Pansies And Violas?
Pansies and violas are similar, cool-season flowers and belong to the genus Viola. Pansies tend to have larger flowers and more vivid coloring and markings. Violas have smaller flowers, but grow more blooms per plant than pansies. Both of these flowers are excellent for cool-season gardens and dislike the summer heat.
When Is The Best Time To Plant Pansies And Violas?
Pansies and violas like cool weather, making them perfect for early spring and fall. For fall planting, wait until the weather has cooled off, since these flowers don’t like the heat, but do plant before it’s cold out for the longest growing season, which allows roots to establish before the ground freezes.
For spring planting, pansies and violas can tolerate cool soil, so plant around the last average frost of the season. In Northern Colorado, planting timing will depend on local weather conditions in both the fall and spring.
Do Pansies Need Full Sun?
Plant or place pansies and violas in full sun to partial shade. During the fall, full sun is often the best choice since the days are shortening and the light is less intense than during the summer. Aim for about 6 hours of sun whenever possible. Violas do better in partial shade. During the spring, consider partial shade from the afternoon sun, as the days lengthen and the light intensifies.
How Often Should You Water Violas?
Keep soil evenly moist while fall-planted pansies and violas establish. Water as soon as the upper layer of soil begins to dry; never let newly planted pansies and violas dry out completely. Keep a close eye on plants in containers since they’ll dry out more quickly than plants in the ground. Avoid waterlogged soil and monitor closely during the spring as temperatures rise.
What Temperature Do Pansies And Violas Grow Best In?
Violas and pansies are cool-season annuals; they will struggle in summer temperatures. These flowers are popular for early-spring and fall color, since they can be planted as summer annuals die back. They can also tolerate light frost, which extends both growing seasons.
What Type Of Soil Is Best For Pansies And Violas?
Use rich, well-draining soil that will hold moisture without staying soggy. If you have poor or compacted garden soil, amend it with compost before planting. If planting in containers, use a potting mix, rather than garden soil, for best results. Always choose containers with drainage holes; wet soil dries more slowly as fall weather continues to cool down.
Should You Fertilize Pansies And Violas?
Use a balanced fertilizer regularly, but avoid over-fertilizing, as nitrogen can encourage foliage growth at the expense of flowers. Container gardens might need more frequent feeding than garden bed plants. Reduce or stop feeding as winter dormancy sets in.
How Long Do Pansies And Violas Bloom?
Fall-planted pansies and violas can bloom until sustained cold slows growth, though flowering may pause during the coldest part of winter. Plants that survive winter may begin blooming again as temperatures warm in the spring. Spring-planted pansies often bloom until the summer heat sets in.
Can Pansies And Violas Survive Summer Heat?
Pansies and violas are primarily spring and fall flowers in Colorado and don’t do well in the summer. They may survive short periods of warmth, but prolonged heat usually leads to reduced flowering, leggy growth, wilting, and general decline.
Should You Deadhead Pansies And Violas?
Yes, deadheading, or snipping off spent flowers, keeps the plant blooming longer and helps it look nice and tidy. Deadhead throughout the entire growing season, stopping only during the dormant winter period.
How Do You Plant Pansies And Violas In Garden Beds And Containers?
For garden beds, loosen the soil and add compost if needed. Plant at the same depth as the nursery container and space according to mature size. Water thoroughly after planting.
If planting in a container, choose a well-draining potting mix (not soil) and pots with drainage holes. Fill containers with potting mix and plant your flowers. Good companion plants for pansies and violas include ornamental cabbage and cool-season grasses. Keep newly planted roots consistently moist while they establish.
Do Pansies And Violas Come Back Every Year?
Pansies can survive for more than one season under favorable conditions, and violas can sometimes self-seed. However, these flowers are generally treated as annuals and planted fresh each season.
What Problems Affect Pansies And Violas?
Root rot in poorly drained soil can afflict pansies and violas, which are also susceptible to aphids, slugs, snails, and fungal leaf problems. Prevent these issues by watering correctly, providing good drainage, and spacing plants for airflow. Inspect and remove any diseased foliage immediately, and treat any pest problems if they arise.
Find Pansies, Violas, And Cool-Season Plants At Bath Garden Center
Bath Garden Center is the perfect place to refresh containers and garden beds as summer annuals begin to fade. Shop our full collection of cool-season flowers and ornamentals, including pansies, violas, and ornamental kale. We have a complete selection of garden soil, compost, potting mixes, and colorful containers so you can plan out your seasonal fall displays. Our expert staff can help you choose the best cool-season plants for your fall or spring garden, offer advice on overwintering plants, or even create a custom annual flower container for your home.
Visit Bath Garden Center in Fort Collins or reach out to us to find pansies, violas, and other cool-season plants that can bring fresh color to fall containers and garden beds.
Resources:
Colorado State University Extension. "How to grow, harvest and eat 12 tasty edible annual flowers in Colorado" https://extension.colostate.edu/resource/how-to-grow-harvest-and-eat-12-tasty-edible-annual-flowers-in-colorado/
Colorado State University Extension. "Frost-Free Growing Seasons in San Miguel Basin & Surrounding Areas." https://extension.colostate.edu/san-miguel/resource/frost-free-growing-seasons-in-san-miguel-basin-surrounding-areas/
