by Donna Arnold | Apr 10, 2025
Snapdragon in bloom: Photo credit Donna Arnold FAMU Extension.
Snapdragons (Antirrhinum majus) add vibrant color to fall and winter gardens in North Florida with their wide range of hues. Colors include red, orange, yellow, and maroon. Their growth varies; tall varieties reach 2–3 feet, intermediates 1–2 feet, bedding types 6–15 inches, and rock garden hybrids about 6 inches. Dark-colored flowers often have reddish stems, while pale blooms grow on light green stems. Snapdragons’ warm-colored flowers stand out in garden beds, especially when paired with white flowers, enhancing their red, orange, and maroon tones. Their fine-textured foliage contrasts nicely with large-leaved plants and compact shrubs.
Though not native to North America, they are widely cultivated and are not considered invasive. Snapdragons are versatile and ideal for mass plantings, containers, cut flowers, and edging. They are generally available within their hardiness range, making them a popular gardener choice.
Cultivars
Dwarf: ‘Floral Carpet,’ ‘Floral Showers,’ ‘Kolibri,’ ‘Royal Carpet,’ ‘Tahiti’
Intermediate: ‘Princess,’ ‘Liberty,’ ‘Sonnet,’ ‘Pixie,’ ‘Sprite,’ ‘Cinderella’
Tall: ‘Panorama,’ ‘Burpee’s Topper,’ ‘Spring Giant,’ ‘Rocket’
Photo credit: Donna Arnold FAMU Extension.
Care and Management
Caring for Snapdragons requires minimal work. They thrive in slightly acidic garden soil but struggle in unamended clay. Therefore, ensuring the soil remains acidic is key to their survival. They require full sun and moist soil. After the first bloom, cutting plants back to five or six nodes encourages a second flowering. Also, fertilizing at bud formation improves growth.
You can increase numbers through propagation. Propagation can be done through seeds or cuttings. Seeds germinate in 10–14 days at 70°F and should not be covered with soil. Prechilled seeds germinate best. Pinch seedlings with two to three leaf sets, except for dwarf varieties. Plant in fall for winter blooms in zones 9–11. In zone 8b and south, snapdragons may survive mild winters. Space plants 6–10 inches apart.
Pests and Diseases
Aphids: Feed on young growth, weakening plants.
Greenhouse leaf tier: Chews and webs leave; pesticides are ineffective once leaves roll.
Mites: Cause bronzed, stippled foliage, especially in hot weather.
Common Diseases
Rust: Brown pustules with yellowed leaf tissue; use proper spacing and resistant varieties.
Anthracnose: Causes sunken spots on stems and yellowing leaves; destroys infected plants.
Gray mold: Leads to wilting and stem browning; worsens in wet conditions. Remove infected stalks.
Stem rot: Cottony growth near soil line; infected plants should be removed.
Snapdragons offer rich color, versatility, and seasonal interest in gardens, making them a valuable addition for novice and experienced gardeners.
For more information contact your local extension office or click on the following links.
FPS-44/FP044: Antirrhinum majus Snapdragon
ENH1285/EP549: Planting and Propagation of Snapdragons in Florida
by Beth Bolles | Mar 6, 2025
One plant that signals our change in season is beginning to bloom in natural areas and woodland gardens. The Red buckeye, Aesculus pavia, is forming large spikes of red flowers and the attractive palmate leaves are unfurling.
Red buckeye in the late winter sunshine. Photo by Beth Bolles UF IFAS Extension Escambia County.
If you enjoy a more natural landscape, Red buckeye is a perfect fit. It often has open growth with multiple branching stems which give it more of a shrub look in many landscapes. Plant size can vary from 8-15 feet. The blooms are beautiful and the tubular flowers can be visited by overwintering or returning hummingbirds.
Single bloom with palmate leaves. Photo by Beth Bolles UF IFAS Extension Escambia County
Although plants can tolerate full sun, plants look their best with some afternoon shade as the summer progresses. A high canopy that allows filtered sun would be excellent throughout our summer weather. Choose a location with moist, well drained soils. In general, plants will drop leaves earlier than other deciduous plants in your landscape so make sure your location is a spot to show off the late winter/early spring blooms.
A precaution with the Red buckeye is that the fruit is toxic for people and pets. The large capsules will contain several seeds which can drop and grow new plants. Squirrels will also enjoy the seeds.
by Matt Lollar | Jan 30, 2025
Planting annuals is a great way to add color and texture to the landscape. Annuals can provide an added visual component to the garden regardless of if they’re planted in the ground or in containers, or even better—both. An annual plant completes its life cycle (growing, flowering, seed set, and death) in a single growing season. Annuals can stay in good health and last longer if they are pruned back when they get leggy and by pinching off any fading flowers (deadheading). To help plan your garden beds and container plantings please click below to enlarge the image of the handy “North Florida Annual Planting Guide”. Please note the suggested planted dates in this guide are based on average monthly temperatures, but every year is different. Some years we may have a late frost around Easter, other years we won’t have a cold front after February.
by deanthonyprice | Apr 11, 2024
Zinnias are well-known annual flowers, primarily recognized for their easy and fast growth. Their wide range of growing habits contributes to their popularity, as they can range from short and bushy to tall with a singular stalk. Regardless of their growing habit, Zinnias are prolific bloomers. They belong to the aster family and are native to Mexico and Central America, thriving particularly well throughout the South.
Photo: De’Anthony Price
Zinnia Characteristics
There are three distinct types of Zinnias based on floral structure: single, double, and semi-double. The different floral structures do not necessarily correlate with plant habits. ‘Single’ refers to flowers that have only a single row of petals, with the center of the flower clearly visible. ‘Double’ Zinnias have multiple rows of petals, and the center is not clearly visible. ‘Semi-double’ cultivars exhibit a combination of traits, with flowers having multiple rows of petals while still maintaining a clearly visible center.
Pollinators and Zinnias
Zinnias are great for attracting pollinators, especially butterflies. Interplanting zinnias between rows of vegetables or as a border around vegetables is a great way to attract more pollinators to your garden. There are a few guidelines available for attracting butterflies to your yard using zinnias. The taller varieties are better than dwarf or compact cultivars, and those with wide, flat blooms provide a larger landing surface. Flowers should have prominent yellow centers (disc floret); double bloom varieties make it difficult for butterflies to access nectar. It is also possible that some varieties attractive to butterflies produce a larger quantity of and/or better-quality nectar than others.
Photo: UF/IFAS
Planting Zinnias
Zinnias perform better in garden beds than containers and, due to their ability to grow so quickly, can be direct seeded. To direct seed, the soil temp should be at least 70 degrees and plant the seeds at 1/4’” deep. Zinnias can also be planted as transplants and should be done once the soil warms to 60 degrees. Plant spacing can be anywhere from 8 to 12 inches depending on the plant’s habit. Singular stalk varieties can be planted closer together and bushier varieties should be given more space. Zinnias prefer full sun and well-drained soil. For longer flowering, remove the old blooms.
Zinnia Management
When planting zinnias, it’s recommended to incorporate a general-purpose fertilizer with equal parts nitrogen, phosphorus, and potassium into the soil. Following planting, monthly fertilization with a phosphorus-rich fertilizer is advisable to encourage continuous blooming. Maintaining adequate moisture is crucial for zinnias but avoid overwatering as they thrive in moderately dry conditions. To prevent fungal diseases, water only when the top 1-2 inches of soil are dry, focusing on watering the base of the plant rather than the foliage whenever possible. Powdery mildew is a common issue with zinnias, but it can be managed by applying a fungicide when necessary. However, it’s best to prevent this problem by ensuring good air circulation and avoiding wet foliage.
Photo: De’Anthony Price
Diseased Zinnia
Zinnias as Cut Flowers
Zinnias, known for their vibrant charm, make delightful cut flowers that can brighten up indoor spaces for a week or longer. For optimal longevity, harvest the blooms when their centers are just beginning to unfurl fully. Trim away lower leaves and promptly place the cut ends into water-filled vases. Regularly refreshing the water helps prevent the growth of algae. When it comes to drying zinnias, double-flowered varieties are preferred as they tend to maintain their shape better than single forms. While all colors undergo slight changes during drying, cutting stems at their peak, removing leaves, and hanging them upside down in bundles away from direct sunlight facilitates the drying process effectively.
Photo: DeAnthony Price
Zinnia – University of Florida, Institute of Food and Agricultural Sciences (ufl.edu)
FPS-623/FP623: Zinnia spp. Zinnia (ufl.edu)
by Stephen Greer | Apr 15, 2021
There is a tall stately tree that can be found throughout the southeastern states, native in nature with a lustrous green leaf the southern magnolia is like no other tree. This amazing tree can be found from the edge of deep woodlands to the back of the tall sand dunes in the panhandle of Florida, all the way down the Florida Peninsula. The leaves provide a consistent evergreen providing a year-round presence in the landscape. Spring brings up small plate sized creamy white blooms with a wonderful fragrance with multiple blooms opening over 3 to 5 weeks. The magnolia can serve as a specimen tree or a back drop to allow other plants to be enjoyed.
Magnolia Tree in the Landscape. Photo courtesy Stephen Greer
Often the magnolia is envisioned to be this 80-foot tall by 40-foot-wide tree with an upright pyramidal shape with the branches reaching to the ground and up to 8-inch-long shiny green leaves. There are other shapes and sizes in the landscape industry that have been found in many different ways from seedling research that has taken place at several of our land grant universities including the University of Florida. Other magnolia with different growth and bloom habits have been found growing in nature. Below are a few of these exceptional species that were selected by the keen eye of a nurseryman or a plant specialist. Next come decades of field grown observation to determine if the plant characteristics are consistent with cuttings taken and rooted to grow more trees. This is one way to see if the same look and growth continues in multiple plants.
Magnolia Bloom. Photo courtesy Stephen Greer
If you grow trees from collected seeds, the new seedlings will show variable growth patterns and likely not present a consistent growth or leaf form from tree to tree. This is the reason for taking cuttings from a magnolia with the desired growth habit, leaf size and color, bloom color and fragrance.
Several cultivars have risen to the top in popularity in the landscape industry over the last 30 to 40 years. One of the most popular large magnolias is ‘Bracken’s Brown Beauty’. It was selected in a seedling field when one of the universities had completed research and invited a local nurseryman to come take any he wanted before the field was turned under for other plant research. Many were dug and field planted at the nursery with one showing many desired characteristics. With its dark rusty brown lower leaf and deep green top. It was observed for a number of years with cuttings taken. One major observation was its tolerance to cold weather. They had a winner and began to introduce it into the plant industry. ‘Little Gem’ is another magnolia that is quite popular for its dwarf (slower) upright growth habit. It first was considered a hedge plant with a dense leaf canopy from bottom to top. The challenge is the plant density opens up as it matures with it ultimately reaching approximately 30-foot tall by 20-foot wide. The surprising part of this smaller magnolia is its bloom is similar in number, yet 3 to 5 inches in size in large numbers as the other southern magnolias. Next there is a few weeks rest period and then sporadically blooms all summer and early fall. There are so many magnolias that could be mentioned I just don’t have enough article space, so it will stop with ‘Claudia Wannamaker’. This magnolia is an old stand by that has been found to be moderately salt tolerant and can be found growing near coastal settings. The leaf wax layer is slightly thicker allowing for a little more protection from the salt. It has a more open multi-truck growth allowing for wind to pass through more easily. The challenge is finding one in the landscape industry.
Contact your UF IFAS Extension office in your county with questions. Enjoy this wonderfully unique tree.
