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10 Best Outdoor Ferns
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Buying Guide for the Best Outdoor Ferns
Choosing outdoor ferns for your garden or landscape can transform shady areas into lush, green retreats. Ferns are generally low-maintenance, but picking the right type ensures that they thrive in your specific environment. It's important to consider factors like hardiness, sunlight tolerance, water needs, and the look you want. Understanding key characteristics of ferns will help you select varieties that not only survive but flourish in your outdoor space.Hardiness ZoneThe hardiness zone tells you the range of minimum temperatures a plant can withstand. With ferns, this is crucial, as choosing a fern suited for your zone means it will survive through winter and come back year after year. To figure out your zone, check a plant hardiness map, then look for ferns that match or exceed your area’s coldest temperatures. Warmer zones (for example, zones 7-10) allow for more variety, while cooler zones (3-6) need hardier species. Match your purchase to your local climate for best results.
Light RequirementFerns can vary in the amount of sunlight they need, ranging from full shade to partial sun. Light requirement refers to how much daily sunlight the fern can tolerate or needs to thrive. Full shade ferns are ideal for densely shaded areas, while some are adapted to receive a few hours of morning sun or filtered sunlight. If you have a shady garden, pick ferns that prefer shade. For spots with some sun (like under trees with dappled light), ferns tolerant of partial sun work best.
Moisture PreferenceMoisture preference indicates how much water a fern needs. Some ferns thrive in wet, boggy soil and can be used near ponds, while others are more drought-tolerant once established and suit regular garden beds. Consider whether your planting area tends to stay moist, dries out quickly, or is somewhere in between. Match the fern's water needs to the existing conditions in your space to ensure healthy growth.
Mature SizeMature size refers to the height and width the fern will reach when fully grown. Knowing this helps you determine spacing in your garden and avoid overcrowding. Smaller ferns (under 2 feet tall) work well in borders or containers, while larger types (3 feet and up) make statement plants or fill bigger spaces. Gauge how much room you have, then select a fern size that complements that space.
Frond Type and TextureFrond type and texture describes the shape, color, and feel of the fern’s leaves. Some ferns have delicate, lacy fronds while others are more leathery or robust. Color may range from bright green to deep green, and some have silvery or reddish hues. Think about the look you want—airy and soft or pronounced and bold—and choose accordingly to fit your garden’s style.
Deer and Pest ResistanceSome ferns are naturally more resistant to deer and pests. If you live in an area where wildlife is a concern, or you’d like to minimize maintenance, choose varieties noted for being less appealing to animals and bugs. This can reduce the need for protective measures and keep your fern beds looking healthy.