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December 2024 Hort Tips

Sunday, December 1, 2024

Selecting and Caring for your Fresh Christmas Tree

David Hillock

 

Selecting a fresh Christmas tree is important so that you can enjoy the tree longer and reduce the risk of a hazard.

 

Check for freshness by gently bending the needles on the tree. If the needles bend easily and don’t break, then the tree is fresh. Another way to check for freshness is to lift the tree several inches off the ground and then drop it on the stump end; if an abundance of outer green needles falls off, the tree is not very fresh. Of course, you can always visit a local “Choose & Cut” Christmas tree farm ensuring freshness of your tree.

 

Once you get your live tree home, it should be placed in water as soon as possible so it won’t dry out. If you purchase a tree from a retail store, cut one inch off the bottom of the trunk to create a fresh cut that will absorb water. A tree purchased from a Choose & Cut farm should be placed in water as soon as you get home. Do not let the stump dry out or you will have to make a fresh cut. A new tree will take up quite a bit of water the first few days so be sure to check the container or tree stand frequently and keep it full of water. Never let your tree get dry or it quickly becomes a hazard.

 

The best way to ensure that you are getting a fresh Christmas tree is to buy one directly from one of the many Christmas tree farms in Oklahoma. Each one offers a different experience, but one that is always a fun and memorable one for the family. Some of the farms offer more than just Christmas trees – wreaths, garland, table decorations and gifts may be available too. To make the experience more memorable, some also offer free hot cider, hot chocolate, coloring books and candy canes as well as children’s activities.

 

The Oklahoma Christmas Tree Association provides a list of farms currently selling Christmas trees as well as other information. Currently there are 15 locations in 11 different counties. These Oklahoma grown trees are beautiful, fresh, green Christmas trees which were carefully planted and nurtured for years specifically for you this Christmas. For more information, learn about Oklahoma Christmas trees.


Feeding Birds

David Hillock

 

It’s time to remember our fine, feathered friends for the winter months. If you already have bird feeders, it’s a good time to clean them. Wash them in soapy water, then rinse in a 10% bleach solution and allow them to dry completely.

 

It’s important to match your birdfeeders to the type of bird you want to attract. Smaller birds such as chickadee, tufted titmouse, and finches prefer the tube feeders. Larger birds such as cardinals and blue jays prefer hopper or platform feeders, and birds such as the morning dove eat seed on the ground. Just as people prefer different types of food, birds prefer different types of food. Thistle and black oil sunflowers are good for smaller birds, cardinals like sunflowers of all types and millet is good for ground feeding birds. A good general bird feeding mix is white proso millet and black oil sunflower. Suet is good for woodpeckers and nuthatches. 

 

Water is also an important feature, not only for the birds to drink, but also to keep them clean as clean feathers insulate better from the cold weather. If you have a birdbath heater, be sure that it will shut off automatically when the water reaches about 40°F, so it doesn’t get too warm. It is also important to keep the water and the birdbath clean. For more information on attracting birds to the landscape see the OSU Extension Fact Sheet HLA-6435 – Landscaping and Gardening for Birds.


Poinsettia Care

David Hillock

 

Newer cultivars of poinsettia, in addition to being very showy, have excellent keeping quality and stronger stems than older cultivars. When buying your poinsettia, choose a plant with well-expanded, well-colored bracts. Foliage should be medium to dark green with uniform coloring. Flowers should be present in the center of the bracts.

 

After you purchase your plant, do not expose it to chilling temperatures or cold drafts of air. If the temperature outdoors is below 50°F do not carry an unwrapped plant from the retail shop to your car. In the home or other place of display, avoid cold drafts and excessive heat from heating ducts, TV sets, or large incandescent lamps. Temperatures of 70°F or below (down to 55°F) are desirable to retain best bract color. Large plants can be placed on the floor if light is adequate.

 

Light plays an important role in retention of leaves on the plant. Place the plant in an area where it receives at least six to eight hours of direct natural or artificial light. A minimum of 75-foot candles is desirable where possible. This would be like the minimum light intensity required for good desk lighting in an office. Incandescent lights such as those found in most homes will give a truer, brighter bract color than most types of fluorescent light.

 

Poinsettias can be displayed with other houseplants. The adjacent plants raise the humidity and allow poinsettias to last longer. Also, the regular houseplants can be spruced up for the holidays.

 

Many commercial growers use non-soil mixes of sphagnum peat, pine bark, vermiculite, perlite or similar ingredients. When plants are grown in such non-soil mixes, it is sometimes difficult to decide when the plant needs water. If there is no heavy component (sand or soil) in the mix and a plastic pot is used, the pot can be lifted to determine its weight. If the plant is heavy, there is usually plenty of moisture in the pot; if it is lightweight, the medium is dry, and a thorough watering should be given. Moisture needs can also be assessed by feeling the growing medium in the pot. Water when the top of the growing medium is starting to feel dry, but do not allow too much drying. Slight wilting of the plant is not harmful, but avoid severe wilting, which will cause leaves to drop.

 

Water the plant thoroughly. Make sure a small amount of water drips through the drainage holes of the container. If the plant is wrapped with decorative foil, punch a hole in the foil beneath the pot to allow excess water to escape. The plant should be placed on a saucer to prevent damage to the furniture or carpet.

 

Do not water the plant too frequently when the soil or growing mix is already wet or this may result in roots suffocating from lack of oxygen, causing the leaves to wilt, yellow, and drop.

 

Recent research has shown that poinsettias are not poisonous, but the plants are intended solely for ornamental purposes. Some people are allergic to the milky sap and may develop a rash when exposed to the sap. Avoid breaking the leaves and stems, as this will release the sap. It is wise to keep any houseplant out of the reach of small children and pets.


Christmas Cactus

David Hillock

 

Next to poinsettias the Christmas cactus can be a popular houseplant for the holidays. In general, they are easy to grow and can live for a long time with proper care. Native to the tropics they are used to growing in the canopies of trees and receiving moderate amounts of moisture. Thus, a medium light intensity and a soil high in organic matter are suggested. Do not allow the plant to dry out, water when the soil surface begins to feel dry. The plant may be kept drier in autumn. Any houseplant fertilizer may be used according to label directions.

 

Like poinsettias they have special requirements to get them to bloom. Cool temperatures or long nights are required to induce blooming. The plants bloom when given night temperatures are near 55 degrees and day temperatures below 65 degrees. Plants will not flower at temperatures above 70 degrees Fahrenheit.

 

Flowering is related to day length and night temperatures. No research has supported the rumor that a “dry down” period induces flowering. The temperature range for flower bud development is 55 to 65 degrees for a six-week period. If temperatures remain in this range, they will develop buds regardless of day length. If temperatures get above that range, the plant will need at least 12 to 14 hours of uninterrupted darkness each night. This can be done by placing them in a completely dark room or covering them for the recommended time, or longer, each night with a dark piece of cloth. Or just keep the plants in total darkness like a closet till buds develop. For holiday blooms this usually means in late September to mid-October.

 

During flower bud formation, stop fertilizing and only water enough to keep the leaves from becoming shriveled. Once buds do form then you can keep the plant in normal light and temperatures. Keep it evenly moist and fertilize every other week with a diluted fertilizer solution. Bud drop may occur due to over or under watering or being placed in drafty areas.

 

A Christmas cactus plant will live for a long time in the same pot if proper soil was used originally and if the plant is fertilized and watered regularly. If the plant becomes top-heavy or root bound, move it to a larger pot. 

 

The ideal schedule of a Christmas Cactus:

  • January - Flowering.
  • February to March - Resting (55 degrees, infrequent watering).
  • April to May - Water thoroughly when potting mix begins to dry out.
  • June to August - Place outdoors in a shady spot.
  • September to October - Plant prepares to flower. Reduce the length of daylight hours. Keep on the dry side and cool (55 to 65 degrees F) until flower buds form. Then increase water and temperature.
  • November to December - Flowering. Water normally. The temperature should be no less than 55 degrees F.

Tilling the Garden in Winter?

David Hillock

 

Most would not think about tilling a garden plot, for vegetables or annuals, during the winter months. However, this is an excellent time to amend garden soil. Working the soil can be done in the spring too, but usually you are dealing with cold, wet soil then. It is wise to avoid working in wet soil because it destroys the soil structure. Of course, working in dry soil can be difficult too, so it is best to work in moist soil. If the soil is dry, water it several days before you plan to till it.

 

Applying two to four inches of organic matter such as leaf material, preferably chopped up or shredded, will help improve soil conditions as the organic material continues to break down through the winter months. In addition to improving soil tilth, tilling the garden during winter can expose overwintering pests such as insects to the freezing temperatures and reduce the potential for problems next spring.

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