Autumn Color is but a Plan Away

Autumn Color is but a Plan Away

The long summer days are beginning to wane, the mercury is starting its slow march down the thermometer, and your landscape displays all the signs of winter. It’s the time of year that many gardeners dread. Fear not, my fellow parishioners of the soil. I’m here to tell you that there is hope for your landscape. With a little planning, your home can remain beautiful as there are blooms aplenty even into the autumn months here in Florida.

Deciduous Trees

Established deciduous landscape plants begin their annual cycle by sloughing off their leaves, but this doesn’t mean they have no value. After months of standing boldly in your yard, many begin to lose their chlorophyll and turn eye-catching hues of orange and purple. Trees such as bald cypress (Taxodium distichum) create a fantastic fall display as they march into winter slumber. Maples (Acer spp.) will similarly provide a beautiful show once the cold weather hits. Plant these trees in your landscape while observing the “right plant, right place” philosophy and you will provide a low-maintenance pallet of annual colors for decades.

Bald cypress showing fall color
Bald Cypress beginning to display fall color.
UF/IFAS photo: J. Criss

Perpetual Perennials

Next, perennial plants are the lynchpin in many landscapes, filling in the space between your trees and inground annuals. Choosing those with bright, warm colors will make your yard stand out against your neighbors. Remember, when planting, some plants will not survive the first frost. One plant prone to this style of dieback is fire spike (Odontonema strictum). Here, you will find bright red blooms underpinned by large, striking green leaves. Don’t be dissuaded by the frost-tender nature of this plant, it is an excellent specimen and supports pollinators later into the season. Salvia (Salvia spp.)  is another superb specimen for some color later in the season. This again will die off upon the first frost but, until then, will provide bright flowers with grey-green foliage that is striking in any garden. For those seeking an evergreen autumn bloomer, look no further than the leopard plant (Farfugium japonicum). This sometimes overlooked and shade-loving member of the aster family provides yellow flowers through the fall and unique round leaves throughout the rest of the year.   

Fire spike in bloom
Fire Spike in bloom.
UF/IFAS photo: J. Criss
Leopard plant in bloom
Leopard plant in bloom. UF/IFAS photo: J. Criss

Annuals for Brilliant Color

Finally, let us peruse flowering annuals. The advantage here is the vibrant colors they bring, but they are short lived and will need to be rotated out in a few months. Sweet alyssum (Lobularia maritima) is a prime example of a versatile plant fitting this bill. They have a spreading habit, making them excellent as a cold weather ground cover or a beautiful trailing potted plant hung on your porch. If sprawling isn’t your cup of tea, investigate calendula (Calendula officinalis) for a splash of yellow in an upright ray-style flower. Remember that these cold weather annuals will not tolerate heat or humidity, so plant them in the fall when things cool off. They will do well in the ground directly or with a pot-in-pot system. The latter will allow easy switches should the plants begin to falter. If planted directly in-ground, prepare your site accordingly. Soil testing will dictate fertilization needs and adding organic matter will ensure adequate water retention.    

Yellow Calendula bloom
Yellow Calendula bloom Photo by Rob Duval. (CC-BY-SA 4.0)

Gardening in Florida is always a tough row to hoe. We are fortunate in that we can provide color in our landscapes throughout the year, but to do so one must understand our dynamic environment. Florida will throw you some curveballs, but with a little planning and some understanding you’ll be well on your way to thriving gardens. For more information, see this Ask IFAS document for trees, this ASK IFAS for perennials, or this ASK IFAS for annuals. As always, please contact your local extension agent for additional information on this and any topic regarding your gardens and more.

Cilantro – Great for Cool Season Gardening

Cilantro – Great for Cool Season Gardening

Cilantro ready for harvest. Photo credit: Howard F. Schwartz, Colorado State University, Bugwood.org

Cilantro (Coriandrum sativum) is a short-lived annual herb with bright green, feathery, flat leaves that look very similar to flat-leaved parsley. Leaves can be harvested at will after they grow to a mature size and then continuously as needed. The flavor of cilantro compliments many Latin American, Indian and Asian dishes and is a great addition to salads. The ripe seeds are known as coriander and used as a spice.

Maybe some of you have grown cilantro, harvested a time or two and then watched in horror as it quickly flowered, went to seed and died. Me, too. This scenario most likely happened in the warm summer months. Hot weather and long days stimulate this annual herb to quickly complete its life cycle. When temperatures increase, it causes plants to bolt which is a sudden switch to producing flowers and seeds, often on tall stalks. After cilantro bolts, the leaves become smaller and less palatable.

Cilantro bolting and blooming. Photo credit: Howard F. Schwartz, Colorado State University, Bugwood.org

The solution is to grow cilantro in the fall and winter. The cooler weather encourages more leafy growth, so you can harvest the leaves for a longer period of time. The warmer weather in the spring will bring flowers, and then seeds to start next autumn’s planting. Collect the seeds and store for planting the following season.

Start cilantro in your garden from seed or transplants. A benefit of growing from seed is that a few seeds can be sown every two weeks to extend your harvest season. Like most herbs, cilantro likes rich, well-drained soils, regular moisture and full or part sun. If the weather is getting warmer, full sun in the morning with some afternoon shade will help keep the herb cooler and less likely to bolt.

For more information:

Herbs in the Florida Garden

Seeding the Garden