October has arrived, and while much of the country is putting gardens to bed for winter, Southeast Louisiana gardeners are entering one of the busiest and most productive seasons of the year.
Cooler temperatures, lower pest pressure, and still-warm soils create ideal conditions for planting everything from shade trees and shrubs to strawberries and fall vegetables. In fact, many horticulturists consider October the beginning of our primary planting season.
For homeowners looking to improve their landscapes, this month is hard to beat. Trees and shrubs planted now have several months to establish roots before next summer's heat arrives. Whether you're adding a live oak for future shade, a sweetbay magnolia for fragrance, or a beautyberry to attract birds, fall planting gives woody plants the best chance for long-term success.
October is also a good time to freshen landscape beds. Cool-season flowers such as pansies, violas, snapdragons, dianthus, petunias, and sweet alyssum are now arriving at local garden centers and can provide color from fall through spring. Gardeners may also divide overcrowded perennials and replenish mulch around trees and shrubs to help conserve moisture and reduce winter weeds.
We may be thinking about pumpkin pie and hayrides, but now is the time to purchase and prepare spring-flowering bulbs. Tulips and hyacinths require six to eight weeks of chilling to flower properly in Louisiana's mild winters. Gardeners should place bulbs in the refrigerator now and keep them away from fruits such as apples, which release ethylene gas that can damage developing flower buds. Other bulbs and bulb-like plants, including rain lilies, spider lilies, agapanthus, and Louisiana irises, can be planted this fall and will provide years of reliable color with minimal maintenance.
In the vegetable garden, opportunities abound. Carrots, radishes, lettuce, spinach, mustard greens, turnips, beets, and Swiss chard can be planted directly from seed. Transplants of broccoli, cauliflower, cabbage, kale, collards, and Brussels sprouts should also be planted this month, along with garlic cloves. Consider planting a cover crop in unused garden beds to suppress winter weeds, reduce erosion, and improve soil health before spring planting.
If strawberries are on your gardening wish list, now is the time to act. Mid-October through November is the preferred planting window for strawberries in our area. Raised beds generally provide the best drainage, and a layer of pine straw mulch helps keep developing fruit clean while suppressing weeds.
Homeowners should not overlook lawn care simply because summer is ending. As turf growth slows, mowing can be reduced, but lawns still benefit from regular maintenance. Fallen leaves should be removed before they accumulate and smother grass. Early to mid-October is also the time to apply pre-emergence herbicides for winter annual weeds such as lawn burweed (sticker weed), henbit, chickweed, and annual bluegrass. Acting now can prevent weed headaches next spring. Be sure to check labels to ensure products are safe for your type of turfgrass. Avoid late-season applications of nitrogen fertilizers. Instead, focus on proper mowing, irrigation, and weed management, and follow LSU AgCenter recommendations for spring fertilization.
Fall is also an excellent time to collect soil samples for testing. The results can help identify nutrient deficiencies and pH issues, giving gardeners plenty of time to make corrections before spring planting begins.
Fruit growers have a few seasonal chores as well. Early satsuma varieties may begin showing color this month, and gardeners should start thinking about winter protection for young citrus trees. It is a good idea to locate frost cloths and other freeze-protection materials before the first strong cold front arrives. Blueberry plants generally need little attention beyond maintaining adequate mulch and watering during extended dry periods.
October is also a wonderful month to support pollinators and wildlife. Native plants such as goldenrod, blazing star, mistflower, and swamp sunflower provide valuable late-season nectar for butterflies and other pollinators. Leaving a few seed heads in the garden can provide food for birds throughout the fall and winter.
With pleasant weather finally returning, it is tempting to simply enjoy being outdoors. Fortunately, many of the chores completed this month are also some of the most enjoyable. Whether you're planting a tree, sowing a row of lettuce, chilling spring bulbs, or adding color to a flower bed, October offers the chance to get outside and invest in next year's landscape.
For gardeners in Livingston Parish, October may be the closest thing we have to a second spring. The cooler weather makes outdoor work more enjoyable, and the trees, vegetables, flowers, and lawns tended now will reward gardeners for months to come.
