cross vine
Plants diurnal

cross vine

Bignonia capreolata

A vertical masterpiece of the American South, the cross vine creates a cascading wall of fiery orange and yellow blooms. This high-climbing beauty is a primary magnet for hummingbirds and a favorite for gardeners seeking year-round privacy and vibrant spring color.

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Quick Identification

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Size

A high-climbing vine reaching 30 to 50 feet (9 to 15 meters) in length with flowers roughly 2 inches (5 cm) long.

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Colors

Trumpet-shaped flowers are reddish-orange with contrasting yellow throats; foliage is glossy dark green, turning bronze or burgundy in winter.

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Key Features

  • Trumpet-shaped bi-color flowers
  • Cross-shaped pattern visible in stem cross-sections
  • Opposite leaves with terminal branched tendrils
  • Climbs using adhesive discs on tendrils rather than twining

When You’ll See Them

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Activity pattern diurnal
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Peak hours 8 AM - 6 PM (during flowering for pollinator visits)
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Season April-June
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Diet Autotrophic; it produces energy through photosynthesis and requires moist, well-drained soil with a preference for full sun to part shade.
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Habitat Commonly found in bottomland forests, swamp edges, and suburban gardens on fences, trellises, or brick walls.

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Behavior

Cross vine is a vigorous, high-climbing woody vine that naturally reaches for the canopy in its native woodland habitats of the central and southern United States. Unlike many vines that scramble and strangle their hosts by twining tightly around trunks, the cross vine uses specialized branched tendrils equipped with small adhesive pads. These allow it to 'stick' to vertical surfaces like bark, masonry, or fences with surprising strength, scaling tall structures without the need for additional support.

In a backyard setting, this plant is an ecological powerhouse. It is one of the earliest sources of nectar for returning ruby-throated hummingbirds in the spring, often blooming just as they migrate through. While it can spread aggressively via underground stolons if not managed, it provides essential vertical cover and nesting sites for small birds. The vine is remarkably resilient, tolerating a wide range of light conditions, though it produces its most spectacular floral display when the upper portions of the plant are exposed to full sun.

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Camera Tips

To capture the best images of a cross vine, focus your camera on the 'bloom zone' during the peak of spring. Position your camera on a tripod or mount it to a nearby post about 4 to 6 feet off the ground, aiming slightly upward toward a cluster of flowers. Since cross vine is a primary nectar source for the Ruby-throated Hummingbird, setting your camera to a high-speed trigger or burst mode is essential. Look for a patch of flowers that receives morning light; the reddish-orange trumpets glow beautifully in the 'golden hour,' creating a stunning backdrop for any visiting wildlife.

If you are using a trail camera to monitor the plant's growth or the visitors it attracts, place the camera approximately 3 to 5 feet away from a trellis or fence where the vine is established. Avoid placing the camera too close, as the vigorous growth of the vine can quickly obscure the lens or create false triggers during windy days. Use a 'Time Lapse' setting if your camera supports it; this is a fantastic way to document the rapid opening of the tubular flowers over a 24-hour period, which provides a fascinating look at the plant's transition from bud to bloom.

For those looking to capture the insects that frequent cross vine, like the Giant Swallowtail butterfly or various native bees, a macro lens or a close-focusing trail cam is ideal. Ensure your camera is positioned to avoid direct midday sun, which can wash out the vibrant yellow interiors of the flowers and cause harsh shadows. Instead, aim for filtered light through a canopy. If you're tracking the vine's health or winter color changes, keep an eye on the lower stems; while the flowers are often high up, the evergreen leaves change to a striking bronze-purple in cold weather, offering great opportunities for year-round foliage photography.

Frequently Asked Questions

Hummingbirds are most active around cross vine in the early morning and late afternoon when nectar production is at its peak and the light is less intense.
Plant cross vine in a sunny spot against a sturdy trellis or wall; its bright red and yellow tubular flowers are specifically shaped to accommodate hummingbird beaks and provide a high-energy nectar source.
As a plant, cross vine gets its energy from sunlight through photosynthesis. It thrives in nutrient-rich, moist, well-drained soil and benefits from a layer of organic mulch at the base.
Yes, they are very common in suburban landscaping throughout the Southeast U.S. because they are evergreen and climb vertical surfaces without damaging the underlying structure.
Cross vine has branched tendrils with adhesive pads and leaves in pairs of two, whereas trumpet creeper has no adhesive pads and features large, compound leaves with multiple leaflets.

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