Yes, cypress vine in pots grows well. Give it a large container, a tall trellis, and steady water, and it climbs and blooms all summer. A pot also keeps the plant from scattering seed across your beds.
I set one deep terracotta pot near the split-rail fence in my zone 7 garden. I pushed a wrought-iron obelisk down into the soil and let a single cypress vine find it. By July the lacy red flowers wrapped the whole frame. Not one seedling popped up in the beds behind it. The pot caught every dropped seed.
That is the real trick with a container cypress vine. The pot edges hold in the seed that falls each fall. So the seed cannot land in open ground and sprout where you never wanted it. Cypress vine self-seeds hard in the ground. A pot pens it in instead.
In a bed, those volunteers can take over. The seed travels with rain and feet, and it shows up far from the parent plant. A pot stops that for you. The dropped seed has nowhere to go but back into the same soil. You can scrape it off in spring, or you can let it fill the pot again on its own. Either way, you stay in control of where this vine grows.
The trade-off is water. A pot dries out far faster than garden soil, sometimes in a single hot afternoon. The roots have nowhere to chase moisture, so you have to bring it to them. Press your finger into the top inch of soil each morning. If it feels dry, water it. If you skip a hot day, you will see the vine wilt and the buds drop, so make this your daily habit.
Water a potted cypress vine deeply in the morning until it runs from the drainage holes. On 90-plus days it may need a second drink by evening.
Start with a pot at least 12 inches wide that has open drainage holes. Fill it with regular potting mix. Set a sturdy trellis or obelisk in place before you plant, so you do not disturb the roots later. Cypress vine wants something thin to twine around. A tall frame gives those wiry stems room to reach 6 to 10 feet.
Choose a wide pot with holes in the base so water drains free.
Push an obelisk or trellis in first so the roots stay safe later.
Set the seed or young plant, then keep the soil evenly moist.
Give a small dose of balanced food once a month for steady blooms.
The University of Arkansas Extension says cypress vine grows fine in planters and pots. It even notes you can thin the seedlings and move the extras to other pots. So if one container comes up thick, lift a few young plants and start a second pot. You do not have to toss them out.
Garden Experiments takes it a step further. They point to pots as a smart way to keep this fast self-seeder in check. The walls of the pot do the work that hand-pulling does in a bed. You get the flowers and the hummingbirds. The volunteer plants stay out of every corner next spring.
Feed it, but go light. A small dose of balanced fertilizer once a month keeps the vine in bloom. Too much nitrogen pushes leafy growth and fewer flowers, which defeats the point. Pair steady water with a light feed. That is the whole secret to growing cypress vine in containers, and it pays you back with a tidy column of color.
Read the full article: Cypress Vine: Care, Flowers, and Facts