Tag: Horticulture

Fall is the Perfect Time to Plant a Tree

You may have heard the Chinese Proverb “The best time to plant a tree is 20 years ago, the second best time is now.”  Trees offer shade and beauty in our landscapes as well as reducing utility costs and providing food sources and habitat for wildlife. The fall season is an excellent time to plant trees! In the spring, soils are cold and may be so wet that there isn’t enough oxygen for adequate root growth. Fall soils are warm and moist which encourages growth. When planted in fall, the tree becomes established well before a spring planted tree and is able to withstand summer stresses.

To pick the perfect tree for your landscape, consult K-State’s recommended list: https://www.kansasforests.org/community_forestry/community_docs/NW%20Preferred%20Trees122016.pdf

By: Cassie Homan

Fall Mums

Nature always gives us signals as seasons change. When summer starts to shift toward fall, the leaves begin to change colors. Another sure sign that fall is right around the corner is the arrival of colorful and beautiful fall mums in garden centers.

Now is the time to plan how and where to use these plants effectively around your home and landscape. A newer trend for growers is to mix colors in containers, so be ready for even more decisions.

Watch this video for information on how to get your mums to last through the winter:

By: Cassie Homan

Dividing Peonies in Fall:

Peonies are a favorite perennial of gardeners because of their beauty and low maintenance. In Kansas, peonies provide a beautiful display of flowers each spring around Memorial Day. Though peonies can be left in place indefinitely, many gardeners wish to increase their plantings and use a process known as division to accomplish this. Keep in mind, however, that peonies often take about three years to return to full bloom and size after division.

Fall is the traditional time to divide these plants. Peonies are essentially dormant by mid-August even though the foliage is still green. The first step in division is to remove the foliage. Then dig out the entire plant. Shake and wash off as much soil as possible so that the pink buds or “eyes” are visible. Peony roots are tough, and a sharp knife is needed to cut the roots into separate pieces. Make sure each division has three to four buds. Make sure the location chosen for planting receives at least a half-day of full sun. However, the more sun, the better. Space the plants so that there is at least 2 feet between dwarf types and 4 feet between the standard types.

Follow the same rules for planting these divisions as you do for new plants. Make sure the pink buds are about 1 inch below the soil surface. If they are set more than 2 inches deep, flowering may be delayed or completely prevented. As you set the plants, firm soil often as it is added around the plant. If the soil is not firmed, it can settle and pull the plant down with it. Water in well after planting and water as necessary through the fall and winter to keep the soil moist.

It is often a good idea to add mulch to the new planting to protect it from heaving. The alternate freezing and thawing that commonly occurs during Kansas winters can “heave” weakly rooted plants out of the ground. Add a mulch of straw, leaves, compost or other material after the soil freezes. Remember, it is not the cold that harms these plants but the alternate freezing and thawing of the soil.

By: Cassie Homan

Harvesting Winter Squash:

Summer squash such as zucchini and crookneck squash are harvested while immature. However, winter squash such as acorn, hubbard and butternut are harvested later, in the mature stage, after the rind is tough and seeds have developed. We normally think September is the time that winter squash is harvested. Harvesting too early leads to fruit that shrivels and rots.

There are two main characteristics that help tell us when winter squash are mature: color and rind toughness. Winter squash change color as they become mature. Butternut changes from light beige to deep tan.  Acorn is a deep green color but has a ground spot that changes from yellow to orange when ripe.  Gray or orange is the mature color for hubbard.

A hard, tough rind is another characteristic of mature winter squash. This is easily checked by trying to puncture the rind with your thumbnail or fingernail. If it easily penetrates the skin, the squash is not yet mature and will lose water through the skin — causing the fruit to dry and shrivel. Also, immature fruit will be of low quality. The stem should also be dry enough that excessive water doesn’t drip from the stem.

Winter squash should be stored cool with elevated humidity. Ideal conditions would be 55 to 60 degrees F and 50 to 70 percent relative humidity. Under such conditions, acorn squash will usually last about 5 to 8 weeks, butternuts 2 to 3 months and hubbards 5 to 6 months.

By: Cassie Homan

Fertilizing Strawberries

Strawberry beds might be done producing for the summer, but that doesn’t mean we can forget them. An August application of nitrogen on spring-bearing strawberries is important in order to increase the number of strawberries produced next spring. Plenty of daylight and warm temperatures during June, July and August promotes the growth of new runners, or daughter plants. As daylight hours dwindle and temperatures grow cooler in September and October, fruit buds for the next year’s fruit crop develop. To get a good berry crop next spring, it is important for strawberry plants to be vigorous during this period of fruit bud development.

Nitrogen, applied mid-August, will help promote fruit bud development. A general application rate is ½ to 3/4 pound of actual nitrogen per 100 feet of row. The nitrogen may be in the form of a fertilizer mixture such as ammonium phosphate or 12-12-12, or in a fertilizer containing only nitrogen such as urea or ammonium nitrate. Some specific examples would include:

Iron + (11-0-0) at 6 pounds per 100 feet of row.

12-12-12 at 5.5 pounds per 100 feet of row.

Nitrate of Soda (16-0-0) at 4 pounds per 100 feet of row

Ammonium sulfate (21-0-0) at 3 pounds per 100 feet of row

Urea (46-0-0) at 1.5 pounds per 100 feet of row

On sandy soils, the rate may be increased by about a half. After spreading the fertilizer, sprinkle the area applying at least a half-inch of water to move the nitrogen into the strawberry root areas.

By: Cassie Homan