Tiny red trumpets glowed against the white arch by my kitchen window every evening one summer. Hummingbirds darted in and out while I washed dishes at the sink. I had planted the vine right there on purpose. That cardinal climber planting location gave it full sun, a strong support to climb, and a clear view from indoors. Pick a spot with all three and you set the vine up to thrive.
The best spot cardinal climber growers reach for is a sunny, open place against something the vine can grab onto. This plant wants warmth and light, so a south or west wall, fence, or arch works well. Get those basics right and the vine does most of the rest on its own. I have watched the same plant fill a six-foot panel in about eight weeks once the heat of summer kicked in.
A good site needs three things, and none of them are hard to give. Clemson and NC State both list these as the core needs for healthy growth and heavy flowering. Walk your yard in the afternoon and you will spot the right corner fast.
Give it at least six hours of direct sun each day. Less light means fewer of those bright red blooms and a thinner, leggy vine. A plant tucked in part shade stretches toward the light and flowers in fits and starts. Full sun is where this vine earns its keep, so pick the brightest open spot you have. Morning sun with strong afternoon light is ideal.
It also needs something sturdy to twine up. The stems wrap around thin supports as they climb, so a trellis, arbor, or fence all work. Strings or netting against a wall do the job too. The vine reaches six to fifteen feet in one season, and that growth gets heavy. Weak support sags under the weight by late summer and pulls loose in a storm. Set your support in the ground before you plant so you never disturb the roots later.
Soil matters less than you might think. Well-drained, average soil is plenty, and rich ground gives you more leaves than flowers. Heavy clay that holds water is the main thing to avoid, since soggy roots rot fast. Loosen tight soil with a little compost so water moves through. Skip the heavy fertilizer and let the plant pour its energy into blooms instead of foliage.
You are not stuck with the ground, either. Cardinal climber grows well in a container or hanging basket as long as you add a small trellis or let the stems trail over the edge. Pots dry out faster, so check the soil every day in hot weather. The vine also makes a fine vertical accent in a sunny mixed border. It threads up through shrubs or a teepee of bamboo stakes and adds height where a flat bed needs it.
Think about your cardinal climber trellis placement before you plant a single seed. Put the support where you can see it from a window or patio. The flowers open in the morning and pull in hummingbirds all day, so a spot you pass often turns the vine into daily entertainment. I keep mine within ten feet of the back door, and the birds barely flinch when someone steps outside. That close view is the whole payoff.
One last thing on placement. After the blooms fade, the vine forms seed pods that hold seeds you do not want pets or small kids chewing on. The seeds can upset a dog's stomach, so keep the planting away from spots your dog uses. You can also clip the pods off before they dry and drop. Pick the right spot up front and your cardinal climber rewards you with months of red flowers and a busy parade of birds.
Read the full article: Cardinal Climber: Grow Guide and Care Tips
