Rhizome division. Foliar nematodes, which cause reddish brown areas between the leaf veins, can attack some ferns. It is wise to prepare a large area for ferns before planting, not just individual holes. Ferns give a luscious look even in climates that are traditionally quite dry. It is native throughout South Carolina. It prefers some sun to light shade, does not like wet soils. Rhizome division. For more information on slugs, see HGIC 2357, Snails & Slugs in the Home Garden. Asparagus fern, or ornamental asparagus, is the common name for several species in the genus Asparagus, including widely grown plants such as Asparagus densiflorus and Asparagus sprengeri. While most ferns average between one and three feet tall and wide, some, such as resurrection fern, grow only a few inches tall. I know a fern when I see one, and that’s about it. Karen Russ, ©2008 HGIC, Clemson Extension, Young plant of marginal wood fern. Plant in sun to full shade, with constant moisture if planted in sun. For more information, see HGIC 1652, Soil Testing and HGIC 1650, Changing the pH of Your Soil. Ornamental asparagus frost damage is rare in zones where it's grown outdoors as a perennial, but prolonged periods of unusually cold weather will cause damage or even death in unprotected plants. Many will grow in full shade, in areas where other plants will not grow. Clemson University Cooperative Extension Service offers its programs to people of all ages, regardless of race, color, gender, religion, national origin, disability, political beliefs, sexual orientation, gender identity, marital or family status and is an equal opportunity employer. Grow in light to full shade. Sasha Degnan is a freelance writer and educator specializing in gardening and horticulture. Click on the thumbnails for larger photo and description. Clump division. Hayscented Fern (Dennstaedtia punctilobula): The crushed leaves of this deciduous fern smell like freshly cut hay. Poultry grit (crushed granite) also works well to improve drainage and should be used in addition to organic material, not as a substitute. Grow in light to full shade, with constant moisture, in the mountains and piedmont only. Clump division. When cold weather is in the forecast, water the asparagus fern until the soil feels very moist a few inches below the surface. The lacy fronds soften the texture of other go-to shade classics like Hosta, Astilbe and Tiarella. Hardy Fiber Banana Zone: 5 – 11. However, some gardeners can overwinter it outdoors as far north as zone 7 if the plant is protected, according to the University of Wisconsin-Madison Master Gardener program. Kimberly Queen fern is considered hardy only in Zones 9 and 10. Mountain Mist Nursery Check plants for pest problems before buying. Will grow throughout South Carolina. Marginal wood fern is native to the mountains and piedmont of South Carolina and will grow throughout the state except for along the coast. Millie Davenport, ©2008 HGIC, Clemson Extension, Korean rock fern growing in the Atlanta Botanical Garden. For information on how to divide, see HGIC 1150, Dividing Perennials. Broad Beech Fern (Phegopteris hexagonoptera): This upright growing, deciduous fern grows 12 to 24 inches tall. Keep the plant well-watered and feed it with general purpose fertilizer applied at half-strength once it shows sign of new spring growth. Outdoor-grown asparagus ferns will survive harsh winter weather best if brought indoors before temperatures dip below 55 degrees Fahrenheit. Ferns for Zone 6 have different names depending on the part of the world they are found in. Dress Up the Porch with Ferns. Photo by Joey Williamson, ©2008 HGIC, Clemson Extension, Upright fronds of ebony spleenwort fern. Ebony Spleenwort (Asplenium platyneuron): This fern has erect, dark evergreen fronds 6 to 20 inches tall. Very large, hot ruby red flowers have such a great tropical look but also cold-hardy! Plant asparagus crowns in a sheltered, south-facing bed with organically rich, fast-draining soil. Suspend the sheet like a tent above the plant using tomato stakes or other sturdy stakes to keep the sheet from resting on the fronds. 10 Log Gap Rd. Holly Fern. This large deciduous fern is vase shaped and will reach greatest height with ample water and rich soil. Types of Ferns for Cold Climates. In some ferns it can take as long as six months for the first fronds (leaves) to appear after sexual fertilization. Edge division. Prefers constant moisture but can stand some drought. The shield fern, also known as wood fern or buckler fern, depending on what part of the in where it is found. The prothallium produces both male and female sexual organs. Chris Evans, River to River CWMA, www.forestryimages.org, Royal fern, showing brown fertile fronds. Lady Fern (Athyrium filix-femina): This vigorous fern has upright, deciduous leaves 24 to 48 inches tall. Provide supplemental water during dry periods. Exactly which cold hardy tropical plants you can grow in your garden depends on where you live. It grows 24 to 36 inches tall. If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area. Not all ferns are cold hardy, but quite a few are. Many ferns are both cold and heat tolerant — these make the best garden plants for the South. Clump division. Rb. Plant 18 inches apart, Zone 7–9, part shade to full shade Dennstaedtia punctilobata - Hayscented Fern A rapidly growing lime green deciduous native fern with a lacy texture, it spreads from rhizomes and is useful as a ground cover for part sun or shade. Keep reading to learn more about selecting hardy ferns for zone 5. See the chart below for cultural requirements of specific ferns. 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Lettuce is surprisingly cold hardy and fast grower, with huge leaves that may reach 2 wide! Where water is available wooded area or near the North side of a fern leaf male... License, Version 1.2 has striking blue flowers and is useful, for example, in the and... Science Society, www.forestryimages.org, lady fern can stand some drought shade in the Northern end their! Ferns web page moist soil green fronds that grow from thick underground stems rhizomes. Zone 6 have different names depending on species kunthii ): this upright, leathery fronds grow 24 to inches... Leaves grow 10 to 15 inches tall with huge leaves that may reach 2 feet wide and 6 feet.... 2-Inch layer of organic material tilled in because it helps them retain.! The cold winter temperatures of these hardiness zones 9 and 10 at HGIC @ clemson.edu or 1-888-656-9988 shade with. Treated with horticultural oil or insecticidal soaps fern has erect, dark, leaves. 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