By Shirley Miller
Master Gardener
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October

Gardening Tasks Reminder

F ertilize:
If your spring flowering bulbs did not bloom well last year, feed them. Do not, however, use a high nitrogen fertilizer. Instead, give a feeding of high potassium fertilizer to encourage blossom.

Fertilize newly sprouted cool season grasses after they have been mowed. Use a nitrogen fertilizer for the late Oct. early Nov. feeding.

W ater:
Continue watering your newly planted cool season grasses. Now that the weather has cooled a bit, cut back to 1 inch per week. It is still better to split up watering into two sessions, applying ˝ inch per application. Drought stressed Bermuda is susceptible to winter kill.

Azaleas require adequate moisture in the fall to prepare for freezing weather. Water enough to keep the soil moist, not soggy.

Continue watering Mums and other late season bloomers.

Water trees and shrubs, even though the weather has cooled. Never let your trees and shrubs go into a freeze in a dry condition.

Reduce, but do not eliminate, the amount of water applied to roses to encourage dormancy.

M ulch:
Apply winter mulch to shrubs after the first hard freeze.

Don’t trash those leaves as they fall. Oak leaves, and others, make a very good mulch and compost. Run over the leaves with your lawn mower, or vacuum and shred. Tough leaves such as Magnolia and decorative pears, however, decompose too slowly to be of value.

P rune:
Discontinue deadheading roses. Rose “hips," (seed heads), make a nice winter display. Leaving the “hips” encourages the roses to go into dormancy.

Take cuttings of bedding plants to bring in to overwinter.

Mow Fescue to 2 1/2 inches for the fall and winter. Mow and edge warm season grasses before a killing frost.

Resist pruning trees. Wait until trees are dormant, especially the “bleeders," such as maple and birch.

P lant:
It is still not too late to overseed or establish a cool season lawn.

During the early part of October, plant cool season bedding plants such as pansies, ornamental cabbage and kale. Snapdragons and dusty miller can be planted during the early part of this month.

Begin planting spring-flowering bulbs such as tulips, hyacinths, crocus and daffodils late this month.

Evergreen groundcovers like ajuga, vinca, English ivy, alyssum, potentilla, moneyewort, thrift, phlox, oxalis and leadwort make good companion plantings for spring bulbs.

Plant or divide peonies, daylilies and other spring flowering perennials now. When planting peonies, keep the top of the plant no more than two inches under the soil. Peonies will not bloom if planted too deeply.

If you would like to add to your collection, the selection of perennials is good, and now is the time to plant.

There is still time to plant radishes and mustard in the fall garden. Use a cold frame to plant spinach, lettuce and various other cool season crops for production much of the winter.

To be sure that you get the fall color you want, select and plant trees while you can still see their good fall color.

P ests:
Although the rose season begins to wane, continue to spray roses for insects and fungus. Clean all debris from the bed, as winter pests overwinter there.

Before houseplants are brought inside, use a recommended spray to avoid bringing in pests. Colonies of white flies and mealy bugs can devastate houseplants, and are very difficult to control. Large containers of tender plants can harbor roaches and other pests. It is good to observe good pest control procedures when bringing in any new plant. Call the MG office the proper control of indoor pests.

If you did not control bagworms back at the first of June, it might be wise to hand pick those bags from your shrub now. One bagworm can harbor enough eggs to produce many small ones next spring.

Yellowing of pine needles from the inside out is normal needle fall.

Apply post-emerge weed control to catch dandelions and other weeds missed by an earlier pre-emerge application. Call the MG office for proper control of broadleaf weeds in your turf.

Keep leaves raked from Fescue and other cool season grass to reduce smothering and loss of grass.

The average first-date-of-frost in our area is the first week in November. Heavy frosts can occur later this month, however. Protect those tender plants until they can be brought indoors.

T ips:
  • Remove green tomatoes from the vine just before the first frost. Keep green tomatoes in a container, being careful not to let them touch. Place in a cool, dry storage area. It is possible for you to enjoy garden-ripe tomatoes well into the winter. They taste so good at Christmas!

  • Take tropical water garden plants indoors when temperatures fall to 50 degrees. Close the water garden for the winter by placing hardy plants in deeper areas of the pool. Stop feeding the fish. A net covering will help catch falling leaves.

  • Keep the hummingbird feeder clean and filled until the end of October. Clean and fill bird feeders. Put out suet. Winter bird feeding season is beginning.

  • Dahlias, cannas and caladiums rhizomes are not cold hardy. Dig, dry and store in a cool dry place for the winter.

  • When leaves of herbaceous perennials such as mums, turn brown, remove dead stems and leaves. Be careful not to disturb new plantlets, which will be your blossom for next year.

  • “Green manure” crops planted in your idle garden spots will replenish the soil, if tilled into the soil next spring. Good candidates are Austrian winter peas, hairy vetch or winter rye. If not turned under by February, this crop will go do seed and cause lots of unwanted problems.

  • Try some herbs on the kitchen windowsill this winter. They are cheery in the kitchen and good to eat. Good candidates: Chives, Parsley, Basil, and Rosemary. Perhaps you will have good luck with others not mentioned here.

  • Houseplants put out for the summer should be brought in when night temperatures fall to 40 degrees. Take time to let the plants adjust to less light. Start by placing in the shade. Reduce the amount of water. When plants are ready, bring in for longer periods of time until acclimatized to indoor conditions. Reverse this process next spring when it’s time for houseplants to go out again.

Contact the Master Gardeners at the Tulsa County Extension for more information.

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URI:/calendars/caltips_oct.shtml   Date Modified:Tuesday, 27-Oct-2009 12:07:34 EDT   Friday, 03-Sep-2010 14:30:57 GMT