Answer: You can plant shrubs and woody perennials now, but I'd wait until spring to plant annuals and perennials. Some good choices for background plants that do especially well in Oklahoma include Hydrangea quercifolia (Oak-leaf Hydrangea); Artemisia Powis Castle (Powis Castle Artemisia); Pennisetum setaceum Rubrum (Purple Fountain Grass); Spiraea Magic Carpet (Magic Carpet Spirea); Kerria japonica (Japanese Kerria); Echinacea Magnus (Purple Coneflower); Jasminum nudiflorum (Winter Jasmine); Salvia greggii (Autumn Sage); Hamelia patens (Fire Bush); Oenothera macrocarpa Comanche Campfire (Evening Primrose); Nassella tenuissima (Mexican Feather Grass); Euphorbia Inneuphdia (Diamond Frost Euphorbia) and Parrotia persica (Persian Parrotia). Once you get the background plants in, you can plant annuals and perennials to complete your garden. I have both in my gardens. Annuals last only one growing season but you can start in early spring with sweet peas and pansies, then replace them when summer arrives with petunias and gazania, then replace those with chrysanthemums and winter pansies. Hope this information gives you some ideas! Best wishes with your garden.
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