Best Bloomers to Plant Now for Showy Seedheads Next Year

Allium schubertii puts on a show even after the growing season is over with its Star-Wars-inspired growth habit.

September and October are prime months for planting spring-blooming bulbs and summer-blooming poppy seeds in Colorado. With this in mind, you may want to consider installing bulbs and poppies that produce not only stunning flowers, but also decorative seedheads. That way, you can bring the seedheads inside and enjoy them during fall and winter.

 Some of my favorite plants for their showy dried seedheads:

Ornamental onions, including Allium schubertii, A. ‘Globemaster,’ and A. aflatunense ‘Purple Sensation.’ All of these varieties are sun-loving and drought-tolerant. Globemaster is sterile, whereas schubertii and purple sensation are spreaders.

Allium schubertii is a rose-purple show-stopper with dramatic spikes, resembling a Star Wars character. This easy-to-grow plant blooms in late spring and reaches about two feet high, which includes its 14-inch-wide seedhead. I wonder what it would look like with holiday lights on it. Too much? Maybe.

Allium ‘Globemaster’ is a lavender beauty that grows about 18 to 30 inches high and 12 to 18 inches wide, and will tolerate part shade.

Purple sensation allium’s airy eight-inch seed head adds a nice touch to a fireplace mantel or other site in your home.

Allium aflatunense ‘Purple Sensation’ generates bright purple blooms and grows about two feet high by eight inches wide. Its seedhead is particularly attractive right after blooming because the ripening seeds are deep green.

Certain varieties of Papaver somniferum, such as Hungarian breadseed poppies and Lauren’s grape breadseed poppy.

Hungarian breadseed poppies come in a variety of remarkable colors, including pink, purple, blue, and white. The seeds can be used for breads, cakes, muffins and other baked goods.

Their large rounded seedheads display an attractive flat rosette at the top.

Lauren’s grape breadseed poppy, name for Fort Collins garden designer Lauren Springer Ogden, produces four-inch velvety, deep purple blooms and grows about three feet high.

Poppies bloom in the summer and self-sow freely if you let them, so be prepared for an influx.

After you’ve enjoyed all these plants during the growing season, display the seed heads around your house, such as on a fireplace mantel, table, or dresser.

How to Grow a Lush Lawn

This is the grass on the east side of my house. I haven’t watered it for about a month, but it stays green because it’s shaded by the house in the afternoon. I provide supplemental water to this area in the summer once or twice a month if it’s really hot. I water the back part of this stretch of lawn more frequently because it gets more sun exposure. There’s also root competition from my crabapple tree. In addition, bunnies have been munching on my grass frequently this summer. I have overseeded my lawn two or three times during the last seven years.

Want to thicken your lawn? Early September is an ideal time to do it in Colorado.

When planting seed, many homeowners rough up the soil a little, drop seed, cover the seed, and keep the area well-watered for about two weeks, giving the seeds time to germinate. In the meantime, no one can walk on the area and the seeds may be eaten by birds.

Want to know how professionals overseed football fields? I learned this method from Dr. Tony Koski, Colorado State University Turfgrass Science professor, when I went through master gardener training.

I’ve used this method many times since. It works. And you can even walk on the area while the grass is being established.

Here are the steps:

*Buy high-quality grass seed at a reputable nursery. It’ll have a higher germination rate and fewer weeds than the stuff you buy at the big box stores.

*Aerate your lawn in late August or early September.

*Using a seed spreader to distribute the seed over the ground. Then drag a metal rake with the tines facing skyward behind you around the yard, knocking the seeds into the aeration holes. (OK, professionals may use fancy equipment to do all this, but you can get the same results with a rake.)

*Top dress the lawn by sprinkling compost here and there and using a rake to spread it evenly. Then drag your rake again, tines up, behind you to knock some of the compost into the aeration holes, which act as germination chambers. These below-ground chambers protect the seeds from foot traffic.

*Water the seed about twice a day for two weeks. That’s how long it takes for many grass seeds to germinate. It’s crucial not to let the seed dry out because a dried seed is a dead seed. After germination, you can cut back on watering to maybe two times a week, depending on how high temperatures get and whether it rains in the meantime.

*When it comes time to mow, don’t go lower than three inches in height. Taller grass reduces the amount of sunlight reaching the ground and helps choke out weeks.

So there you have it—the secret to growing a lush lawn. Keep your yard watered, but don’t overdo it. Water infrequently and deeply to encourage deep root growth. I water about twice a week when temperatures are above 85 and there’s no rain. Otherwise, I water about once a week in the areas that receive the most sun.