November 18, 2005

 

  - Jasmine nudiflorum
  - Garden Q&A


Jasmine nudiflorum

Low Maintenance Ground Cover for Steep, Sunny Banks
This week we are featuring a beautiful groundcover that will bring color to your garden in mid-winter when almost everything else is still dormant and brown - Jasmine nudiflorum. Native to China, Jasmine nudiflorum, also called Winter Jasmine, was introduced in 1844. It is loved for its striking yellow flowers in wintertime and ease of growth - so much so that it was given The Royal Horticultural Society's prestigious Award of Garden Merit (AGM).

Masses of Bright Yellow Flowers
Winter Jasmine will give you masses of bright yellow flowers in late winter to early spring. The funnel shaped flowers, about 1 inch wide, appear on the bare green stems as early as January. At first, flowers open only on warm days, but as the season progresses their quantity and frequency increases, usually reaching a climax in late March and April. Following the flowers, tiny glossy, dark green leaves will develop and remain through the summer. In autumn, once the leaves fall, bare green stems are left and stay attractive throughout the winter. Winter Jasmine is the ideal plant to scramble over a bank or down a steep sloping hill, where grass is difficult to mow. It's arching stems root where they touch the soil and they are easy to separate and transplant. Winter Jasmine can be used above a retaining wall where it is free to cascade over the top. Jasmine nudiflorum can also be trained as upright 6-10 foot tall espalier.

Planting and Care
Winter Jasmine is very tolerant of poor soils and less than ideal conditions. Salt tolerant; ideal planted along roadsides. It is permanent and durable, easy-to-maintain and fast growing. With light pruning annually, Winter Jasmine can be kept at 18 inches tall - a dense weed-inhibiting ground cover. Simply prune any stems that rise above the foliage mass. Winter Jasmine will do best in full sun, but will tolerate some shade.

  • For best results plant in early spring in zones 6; early spring or fall in zones 7, 8 & 9.

  • Prefers full sun; will tolerate light shade.

  • Plant 24 to 36 inches apart in well-drained soil.

  • Water regularly until established.

  • Fertilize with Plant-Tone and Kelp Meal in late fall and early spring.

  • Hardy in zones 6-9.

  • From 1 gallon pots for $24.85 each.

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Jasmine nudiflorum


Garden Club Frequently Asked Questions
 


Question: My beautiful ajuga bed has been poisoned with salt as per soil test when I saw ajuga dying. How do I get the salt out? Remove the soil? If so, exactly what type of soil should be put in so that I can plant ajuga which will flourish again?

Answer:   Sodium chloride salt can usually be removed by thoroughly flushing the soil with water. Then drench the soil with Super Bio beneficial microbes to "digest" the remaining salt. Drench once this fall and then every 2 weeks all spring and summer next year. (Start when the daffodils bloom). Do not replant until early fall next year.

If you decide to remove the soil instead, remove the soil to a depth of at least 6 inches and replace with top soil mixed half and half with compost or potting soil.


Question:  I have always dug my calla lilies up before frost. My neighbor, whose callas are much more plentiful and bloom better than mine, says she does not dig hers up. Did I maybe plant mine to deep for they did not bloom very well this past year. They are close to the house and protected, should I leave them in the ground in this area? If I do dig them up, do I do this before or after frost?

Answer: There are several varieties of calla lilies and they vary in hardiness. The white ones tend to be the hardiest. In a protected place, white calla lilies often survive outside in a mild winter and perish in a severe winter. My experience has been that calla lilies left in the ground bloom better than those stored dry over the winter. For storing indoors, calla lilies should be dug after the first killing frost. If your clump is large and white flowering, I suggest digging and storing half and leaving the other half in place to see if they survive. Separate the two parts with a spading fork and try not to disturb the roots on the portion that remains in the soil. Calla lilies bloom best in a moist, lightly shaded spot with rich, humusy soil.


Question: This fall large numbers of orange and brown bugs were on the side of our house. On some days the siding was almost covered with these bugs. How can I get rid of them?

Answer:  You have boxelder bugs and on warm fall days they tend to gather on the sunny side of buildings and trees. They are harmless but they are obnoxious. There are two ways to remove them. One is by vacuuming with a vacuum cleaner and the second is by thoroughly spraying the bugs with insecticidal soap to the drenching point. If you choose to use the soap, test a small inconspicuous spot of your siding to be sure it doesn't damage the finish. Boxelder bugs feed mainly (but not exclusively) on the female (seed bearing) boxelder (Acer negundo) trees. You can reduce the population of boxelder bugs by removing any female boxelder trees that are near your home.


Question: I know you recommend a major fall feeding with fertilizer and Kelp Meal of just about the entire yard and garden around Thanksgiving. In our area it has already turned really cold. Do you have to wait until Thanksgiving? We are going to be away Thanksgiving week. Can it wait until early December?

Answer:  Thanksgiving was chosen for fall fertilization because it is easy to remember and by that date the weather has usually been cold enough to assure that all plants have gone dormant. This is an approximate date determined by weather conditions and your convenience. The cold front that moved across the nation's mid-section into the east coast has driven almost all plants into dormancy. So you can start fertilizing now and carry on right into early December. One exception: experience has taught me that the lawn should be fertilized with Turf Trust as close as possible to the 3rd week in November.


Question: I have several questions about the fall fertilization program that you recommend:

1. Do I need to dig or water in my fertilizer?

2. Can I sprinkle the fertilizer on top of the mulch or do I need to remove the mulch first, then fertilize and replace the mulch?

3. I have heard you suggest that shady lawns can be fed at 1/2 strength; does this apply to all three feedings or just the late August feeding?

4. If I use different fertilizers than you recommend, are the dates still the same?

Answer:

1. There is no need to dig in or water in your fertilizers. They have the whole winter to work themselves down to the appropriate level, so that the nutrients will be available at root level in the spring when the soil warms up. My experience has been that you do more damage to the root system by digging in the soil than any benefit that you would achieve.

2. I usually do not remove the mulch, but instead sprinkle the fertilizer on top. Removing and replacing the mulch disturbs the root system and, quite frankly, is a lot of work. However, if you are planning on re-mulching for the winter, I would fertilize before I put down the new mulch.

3. Shady lawns require less fertilization than sunny ones. Thus in the shade I do all 3 fertilizations at 1/2 to 3/4 strength.

4. Our fertilizer calendar was developed with certain fertilizers in mind and the calendar and the fertilizers go together. Feeding your perennials, trees and shrubs with quick release chemical fertilizers on these dates can be wasteful and on some plants may be harmful. In late fall, feeding your lawn with natural organic fertilizers will be ineffective and quick chemical release fertilizers will not last until spring.


 

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