How to Grow and Care for Cypress Vine (Ipomoea quamoclit)

Cypress Vine Care

Here are the main care requirements for cypress vine.

• Plant in a spot that receives full sun. The vine will grow in partial sun as well but may bloom less.
• Provide a supporting vertical structure for it to grow, such as an arbor, pergola, deck post, or lattice. Cypress vine is a true climber that wraps and twines around objects.
• Prioritize good drainage over pH range and soil quality. It will grow in a wide variety of soils, but drainage is a must.
• Water regularly for faster growth and a heavier bloom.
• Handle runners carefully when encouraging climbing in a particular direction. This vine is delicate and easily damaged.

Light

Cypress vine needs full sun for it to bloom. Giving it proper support to climb on (so that it is not shaded by nearby plants) is often a necessary step in meeting this requirement.

Soil

Of the three recommendations for soil conditions (fertile, well-drained, and evenly moist), well-drained is the most critical. Cypress vine, once established, is reasonably tolerant of drought and can often get by without much fertilizing. But soil that does not drain well will stress the plant.

Water

For ideal growth, water regularly to keep the soil evenly moist (but not soggy).

Temperature and Humidity

The plant can tolerate temporary dry spells but prefers moderate moisture (not bogginess). It can withstand extremes of heat but will quickly wither in cold temperatures.

Fertilizer

Cypress vine will grow bigger and more reliably if it is fed with a balanced fertilizer per the product recommendations.

Types of Cypress Vine

In addition to the cypress vine and its close relative the morning glory (Ipomoea coccinea), other plants from the Ipomoea genus used in landscaping include:

• Sweet potato vine (Ipomoea batatas): Native to Mexico, this is a vigourous growing annual with pink funnel-shaped flowers.
• Moonflower (Ipomoea alba): Moonflower is a low-maintenance, perennial vine with white, fragrant flowers that bloom at night.
• Cardinal climber (Ipomoea multifida): The trumpet-shaped flowers of the cardinal climber are a bold scarlet red with white or yellow markings. This cultivar attracts hummingbirds, bees, and butterflies.

Pruning

Since cypress vine grows so quickly, it can begin to crowd itself and become too dense, encouraging dampness and potential disease issues. So, trim as needed to open up the plant a bit and allow airflow.

You can also prune to keep the plant at a desired height, but this will be a continual effort throughout the growing season because of the plant’s rapid growth.

During the winter, cut back dead vines to allow unencumbered fresh growth in the spring.

Propagating Cypress Vine

The cypress vine is easily propagated by simply letting it seed itself. Just allow dead flower heads to remain on the vine through the fall, and the seeds will naturally sow themselves. If you’d like to move a vine to another location, dig up the seedling in the spring and transplant it.

Keep in mind that these hardy vines tend to spread vigorously when allowed to seed themselves, so be sure to contain the growth within your target areas so that it does not become invasive.

How to Grow Cypress Vine From Seed

Cypress vine is grown from seed. While it is possible to sow the seeds directly outdoors (after the danger of frost has passed), it can take a long time to get flowers from them in the northern states this way unless growing conditions are ideal. Many gardeners like to get a jump on the growing season by starting the plants indoors from seed in peat pots filled with potting mix, four to six weeks prior to the last frost date. Here’s how:

1. Keep seeds moist for 24 hours before planting.
2. Lightly scar the surface of the seeds using sandpaper.
3. Plant the seeds 14-inch deep and cover them with the potting mix.
4. Keep the potting mix damp and warm (at least 70 Fahrenheit).
5. Wait about 10 days for the seeds to germinate.
6. Water the newly-germinated plants well to get them established.
7. Transplant the plants outside after all danger of frost has passed.

Avoid damping off problems with the seedlings. The fungus that causes this problem is usually the result of overly wet and fertilized soil. Thin out seedlings to make sure there’s plenty of air circulation.

Potting and Repotting Cypress Vine

It is possible to grow cypress vine in a container but make sure it’s placed in a location where it can stay all summer without movement. You will also need a suitable structure for the vines to latch onto.

Pick a heavier pot, such as glazed ceramic or terra cotta, with substantial drainage holes. It should be at least 12 inches in diameter. This vine can be of considerable weight as it spreads, so if your container is on the lighter side, add weight in the form of a layer of gravel or pebbles before adding your potting mix.

Overwintering

After cypress vine foliage has wilted to brown, cut the dead vegetation at ground level and mulch as you do the rest of your flower bed. Deadhead any blooms if you’re not looking for more seed germination by spring.

How to Get Cypress Vines to Bloom

Bloom Months

Cypress vine tends to bloom between June and October.

How Long Does Cypress Vine Bloom?

Individual blooms will last on the vine for a day or two before giving way to new ones. This will continue for several months.

What Do Cypress Vine’s Flowers Look and Smell Like?

Valued as a flowering vine, the blooms are small, delicate, papery, and star-shaped, mostly bright red. But flowers aren’t this plant’s only attribute; it also functions fabulously as a foliage plant with graceful, dainty, and feathery fern-like leaves. They do not have any noticeable fragrance.

How to Encourage More Blooms

Cypress vines rarely require effort to encourage blooming, but if your vine seems reluctant, there are a few things you can do:

• Ensure full sun exposure.
• Make sure the soil doesn’t stay too wet.
• Keep the soil as loose as possible (avoid compaction).
• Add fertilizer.

Caring for Cypress Vine After It Blooms

As the blooming season comes to an end in late fall, you can prune the plant back significantly. Remove any spent vines or seed pods to prevent self-sowing and unwanted spread. This will allow the plant to recover and regrow.

Deadheading Cypress Vine Flowers

It’s a good idea to deadhead the flowers when needed especially if you’re trying to contain the vines to a certain amount of space. If you leave faded flowers on the vine, then seeds will germinate freely in the spring. Deadheading will also encourage more blooms. If you’re trying to grow additional vines, there is no need to deadhead the flowers.

Common Problems with Cypress Vines

When it comes to gardening with wildlife in mind, the cypress vine hits the trifecta: Deer avoid it, yet hummingbirds love it, and it draws butterflies. It’s also relatively free of pest and disease problems. You may notice yellowing leaves from time to time; it is likely due to inadequate sunlight or over-watering. Ensure proper sun exposure and soil drainage and you shouldn’t experience problems with this resilient plant.