March Garden Calendar
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Collapse ▲Plants in flower:
- Saucer Magnolia, Flowering Cherry, Forsythia, Star Magnolia, Spirea, Flowering Quince, Carolina Jessamine, Periwinkle, Thrift, Violets, Crocus, Daffodil, Hyacinths and Tulips
 Figure 1: Flowering quince |
 Figure 2: Forsythia (aka yellow bell bush) |
 Figure 3: Grape hyacinth, daffodils, white phlox (PL 35D 008) |
 Figure 4: Saucer Magnolia |
Fertilizing:
- Fertilize shrubs and shade trees
- Fertilize asparagus beds early this month before spear growth begins
- Before planting your vegetables, fertilize your garden as recommended by your soil test results
- Apply the recommended amount of lime if this was not done in the fall
Planting:
- Plant a tree for Arbor Day! (March 18th)
- Plant small fruit plants, grape vines and fruit trees before the buds break
- Transplant or plant new trees, shrubs, and ground covers so their roots can get established before summer comes!
- Plant seeds of the following perennials: columbine, hollyhock, coreopsis, daisy, phlox, and dianthus (Sweet William)
- Plants of broccoli, cabbage and cauliflower should be set out in the garden in mid-March
- Plant seeds of these vegetables: beets, carrots, Chinese cabbage, kale, kohlrabi, lettuce, Swiss chard, turnips, potatoes, cabbage, broccoli, and cauliflower.
- Start any annual flowers or warm-season vegetables inside your home that are not commercially available in early March
Pruning:
- Finish pruning fruit trees, blueberries, grapes, blackberries
- Prune spring flowering plants like winter honeysuckle, flowering quince, and camellias after their flowers fade
- Prune roses late in March
- Shrubs like abelia, mahonia and nandina can be pruned this month if needed
- Dead-head or pick off faded flowers of pansy and daffodil (they will flower longer if old flowers are removed)
- Overgrown shrubs can be severely pruned (not needled evergreens)
- Trim ornamental grasses like liriope, Mondo grass, and pampas grass (a weed eater will work perfect!)
Spraying:
- Spray peach and nectarine trees with a fungicide to prevent leaf curl
- Spray all fruit trees with dormant oil to help eliminate some insects (after pruning)
Lawn Care:
- Fertilize with cool-season turf with 10-10-10, but NOT with slow-release fertilizer
- Apply crabgrass preventer to your lawn to help control crabgrass in the turf
- Mow tall fescue lawns as needed
- Seed fescue and bluegrass if not done in September
Propagation:
- Continue to divide perennials like daylily, shasta daisy, gaillardia and coreopsis
Specific Chores:
- Restock on garden supplies like fertilizer, insecticides and fungicides if needed
- Make sure all garden equipment, lawn mowers, tillers, hedge trimmers, tools, hoses and sprayers are ready to go for the season
- Be certain that old plantings of perennials like peony, hollyhock and phlox are clean of last season’s growth