Home Hort Hints, January 2000

Rick Durham, Consumer Horticulture Extension Specialist, University of Kentucky
 
Storing vegetable seeds.

If you are an avid gardener then you know that seed catalogues will soon be showing up in the mail box. But if you are like most people, you will have many seeds left over from the previous season. Are these seeds still viable? Is there a good chance they will germinate if planted? You bet. Most vegetable seeds remain viable or able to germinate for three years or more when stored properly. A few vegetables such as spinach, onion, and sweet corn, produce seeds that remain viable for a shorter period of time. In any case, storage conditions are very important. It's best to keep seeds as dry as possible. Enclosing them in a glass jar or other airtight container may be helpful. This will also protect against insect infestation and feeding by rodents. Although refrigeration is not necessary, keeping seeds as cool as possible, but not freezing, will also prolong their life. It's easy to check the germination ability of stored seeds and this might even be a fun family project. Simply remove a set of 20-30 seeds from each stored packet, wrap them in moist paper towels, place them in a zip-lock bag, and keep them in a warm place (70-80F). They should germinate in a week to 10 days. If half or more of the seeds germinated, it should be fine to sow them in the garden. Just increase the planting density accordingly to account for less than 100% germination. If germination is low, discard the seed lot and order or buy fresh seeds.
 

It's time to think about perennial vegetables and small fruits.

March is the best time for planting many perennial vegetables and small fruits. So go ahead and place your orders as those seed and nursery catalogs begin arriving. Here are some recommended varieties that should do well in Kentucky:

Watch for heaving of perennials in frozen soil.

As soils temperatures fluctuate resulting in cycles of freezing and thawing, herbaceous perennials such as daylilies, iris, strawberries, and others, may be partially lifted out of the ground. This can usually be prevented by applying two-three inches of mulch around perennials. The mulch helps to stabilize soil temperatures and prevents the drastic fluctuations of temperatures exhibited by bare soils. If plants are not mulched, check them during periods of thaw to see if any heaving has occurred. If so, firmly push the plants back into the ground to their previous depth and cover with at least two inches of mulch.
 

Woody plant care for the winter.

During periods of warm weather, continue to water newly planted trees and shrubs as well as established evergreens. This is especially true for plants on the south and west side of the house since they receive more winter sun than the rest of the landscape. This brings up another situation. If you are making plans now to transplant trees or shrubs in early spring, consider that the light situations in your landscape may differ between summer and winter. Areas that seem bright and sunny now may not be during the summer.
    Remember your evergreens during snow storms. Accumulating snow, especially when wet, may seriously damage branches. A broom can be used to sweep off snow on lower branches. An upward sweeping motion is best, and be sure to watch out for power lines. It's better to prop up ice laden branches than to try to physically remove the ice. Such branches tend to be brittle in cold weather and may be damaged in the removal process. In other words, don't beat the ice off of branches with a stick! If severe winter damage occurs to limbs and branches, pruning can be done at any time to remove the damaged parts. Otherwise, wait until severe winter weather is over before doing maintenance pruning. In this way one can better judge and remove other branches that may have been damaged during winter.
 
Other gardening activities for winter.