In garden landscapes, cattails are well suited for growing around ponds, in water gardens, or areas prone to flooding; they can easily grow in water up to ten inches deep. They can also be a good choice for erosion control on wet slopes, and they make a great privacy screen too. The attractive stems are frequently added to flower arrangements in fresh or dried form. When planting a cattail, make sure you select a species such as Typha latifolia, which is native to parts of the United States instead of an introduced species that can become invasive. Cattails need no help getting through even harsh winters in their native climate. These hardy plants will come back reliably year after year.
Light
Cattails need full sun or partial shade to thrive. They can’t survive in full shade.
Soil
These plants benefit from rich, loamy soil that contains plenty of organic matter. They can, however, grow in most soil types.
Water
As you would expect from a marshland species, cattails need a lot of moisture to thrive, and this is the most vital element of their care. The soil should be kept wet, which is why they do best in areas where this happens naturally. These plants can thrive in standing water.
Temperature and Humidity
Cattails are most commonly found in temperate regions of North America, but they can also grow in subtropical and elevated tropical regions. Although young shoots don’t cope with frost well, established cattails can handle harsh winters in their dormant state.
Fertilizer
Fertilizing cattails isn’t generally required or recommended.
Types of Cattails
Three other cattail species that might interest the home gardener, but they are native to Europe and Asia and as such might become invasive if not controlled:
Dwarf bulrush (T. minima) is a dwarf variety of cattail that grows only two feet tall with interesting, rounded catkins.Graceful cattail (T. laxmannii) has spiraling threads on the end of its leaves and striking, golden catkins that are about the size of a walnut.Narrowleaf cattail (T. angustifolia) offers exactly what the name suggests; narrow leaves as opposed to the broader leaves of the other varieties. It can become invasive.
Pruning
It’s advisable to prune back cattail plants in bogs during the fall when their growth slows down. Cut the cattails with sharp pruning shears about eight inches above the surface of the water they’re standing in, or down to the ground if they are not in standing water. New growth will appear in the spring.
Propagating Cattail Plants
Cattails can self-seed freely and spread through their rhizomes. These rhizomes make it easy to propagate if you want to add a new cluster of plants to a different large landscape area. Young shoots can also be divided in the spring when they are between five and ten inches tall.
How to Grow Common Cattail Plants From Seed
If growing cattails from seeds, they need a lot of water for successful germination. They should be sown on the surface of the soil and kept very moist, to the point of being soggy. Sowing them at the edge of a pond or other marshy area makes this process much easier for the home gardener. If you are starting cattail seeds indoors, begin by soaking the seeds for 24 hours, then cleaning away the cottony debris that often surrounds them. Let the seeds dry, then press them on top of a two-inch container filled with a mixture of seed-starting compost and coarse sand. Cover them to a depth of 1/4 inch with compost. Cover the plants with a plastic dome and use a germination mat set to 100 degrees Fahrenheit to provide ample warmth. Water at least once a day with a spray bottle to ensure proper moisture. Germination takes about two weeks. Transplant strong seedlings into the soil in early autumn, preferably right after rainfall so the soil is very moist.
Common Pests
Cattails don’t face the typical insects that many other plants do. Instead, they are often eaten by creatures of much larger size, such as crayfish or muskrats. Because cattails are so prolific, animal grazing shouldn’t be an issue.
