What Not to Plant in the Fall
Ocala, in USDA Zone 9a, with its mild winters and warm temperatures (average low of 20–25°F), offers a long growing season, making it a gardener’s paradise for much of the year. However, fall is a transitional season, and not all plants thrive when planted during this time due to cooling temperatures, shorter days, and the risk of occasional frost. To ensure successful plants, here’s some recommendations on what not to plant in the fall.
Tender Annual Flowers
Examples: Zinnias, marigolds, cosmos, and impatiens.
Why Avoid? These flowers are sensitive to cold snaps, which can occur in Zone 9a during late fall or early winter. Planting them in fall risks damage from unexpected frosts, and they won’t have time to establish before daylight hours decrease. Additionally, many tender annuals won’t bloom well in cooler conditions.
Alternative: Opt for hardy annuals like pansies, violas, or snapdragons, which thrive in cooler weather and add vibrant color to your fall garden.
Tender Perennials or Shrubs
Examples: Hibiscus, Bougainvillea, Blue Daze or citrus trees.
Why Avoid? While Zone 9a is generally mild, fall-planted tender perennials or shrubs may not have enough time to establish strong root systems before potential frost or cooler soil temperatures slow growth. Young plants are especially vulnerable to cold damage, which can stunt or kill them.
Alternative: If you want to plant perennials or shrubs in fall, choose cold-hardy options like Texas sage, which are better suited to Zone 9a’s fall conditions.
Non-Frost-Tolerant Bulbs or Tubers
Examples: Dahlias, gladiolus, or tuberous begonias.
Why Avoid? These bulbs and tubers are sensitive to cold, wet soil, which can become an issue in Zone 9a during fall and early winter. Planting them in fall risks rot or frost damage, especially in areas with poor drainage or unexpected cold snaps.
Alternative: Plant spring-blooming bulbs like daffodils, tulips, or hyacinths, which are suited for fall planting and will bloom after overwintering.
Additional Considerations for Zone 9a Fall Planting
Frost Risk: While Zone 9a is mild, microclimates and occasional cold fronts can bring light frost. Avoid plants that can’t tolerate even brief cold exposure.
Soil Temperature: Many warm-season plants require soil temperatures above 60–70°F to germinate or grow well, which may not be consistent in fall.
Daylight Hours: Shorter days in fall slow growth for photoperiod-sensitive plants, making cool-season crops a better choice.
Tips for Successful Fall Gardening in Zone 9a
Use Frost Protection: For borderline plants, have row covers or cloches ready to protect against unexpected cold snaps.
Amend Soil: Fall is a great time to improve soil with compost or organic matter to prepare for winter or spring planting.
Check Local Extension Services: Resources like UF IFAS Extension Marion County Master Gardeners for tips and tricks.
By avoiding the plants listed above and focusing on those suited to Zone 9a’s fall conditions, you can maximize your garden’s success and enjoy a bountiful harvest or vibrant display through the cooler months. Happy gardening!
Note: Always check Ocala’s specific location for first frost date and microclimate conditions, as Zone 9a can vary significantly across regions.
