Dawn-Redwood – Pruning, Winter Care and Fertilizing

This large conifer needs little pruning in general, but because it is deciduous the winter structure “look” is more important. So crossing or poorly formed branches can be removed to promote a more regular structure. If a central leader is lost a new one can be established by tying a side shoot in an upright position for 18 months.

Young conifers respond very well to fertilizing. Either granular, liquid or stake type fertilizers can be used. Granular fertilizers can be worked into the soil around the plant at a rate of 2 lbs or 2 pints per 100 square feet of planting bed. An alternative way to apply granular fertilizers starts with drilling or punching 6” deep holes at the drip line of the tree. Poured into these holes should be a total of 2 pounds of fertilizer per 1″ of trunk diameter (divided up and poured evenly between all of the holes). These holes should not be filled with more than 1/3 of the fertilizer and then they should be top filled with soil. This method of fertilization should only be done once a year, and is best done in late fall, or in early spring before bud break. Multi Purpose 10-10-10 Fertilizer by Greenview works well.

Liquid fertilizers (such as Miracle Gro ) are mixed with water and applied the same as you would water the plant (see product for specific details). This should be done three or four times per year starting in late April and ending in mid July. Stake type fertilizers can be used following the directions on the package. With any of the above techniques, a balanced mixture should be used; 20-20-20 or similar mix is a good choices. Organic fertilizers, like manure, can also be used with good results. The material should be worked into open soil at a rate of one bushel per 6’ of shrub or 100 square feet of bed area. As a plant matures, less fertilizing will be needed.

These conifers need very little winter care, but should be checked now and then for snow damage.