Mountain Gardener Newsletter SEPTEMBER 2019
September 7, 2019 | 10 a.m. | The Sowing Circle Presents:
Hands-On Composting Workshop
September 11, 2019 | 9–11 a.m. | Demo Day at the Learning Garden
September 19, 2019 | 10–12 p.m. | Gardening in the Mountains
September 28, 2019 | 10–12 p.m. | Saturday Seminar
Can You Identify the Common Invasive Plants of WNC?
September Garden Chores
Now is NOT the time to fertilize perennials and woody plants. Late-season nitrogen can reduce cold hardiness and force growth that can be damaged by hard frosts.
This is a good time to cut flowers for drying. Good candidates for air-drying include celosia, yarrow, statice, globe amaranth, strawflowers, goldenrod and grasses.
Leaving some of the few remaining seed heads of coneflower, sunflower and black eyed susan can be good for the birds to enjoy in the months ahead.
Move houseplants indoors before temperatures drop below 45 F. Check for signs of insects and treat. Rinse off foliage, remove dead leaves and cut back long stems.
Now is time to divide peonies that have not flowered well. Leave several “eyes” on each division and be sure to replant them with the eyes no more than 2 inches below the soil surface. Keep them watered this fall.
Check evergreens for bagworms. Removing them now prevents re-infestation next spring.
Pull spent summer annuals and replace them with pansies or ornamental kale or cabbage.
To reduce the reoccurrence of fruit rot in peaches and grapes next year remove all plant debris including mummified fruit left hanging on the plant and lying on the ground.
Remove weeds and fertilize in strawberry beds where plants are forming next spring’s flower buds. Also water if September rains are lacking.
Prune blackberries and raspberries and remove the old fruit-bearing canes from this year. Also thin new canes to leave only 4-8 canes per square yard.
Remove spent vegetable plants as soon as possible to reduce carry-over of insect and disease problems. Consider keeping a separate compost pile for diseased plants and do not use that compost in the vegetable garden. .
Plant fall vegetables by mid-month. Sow lettuce seeds every couple of weeks for a continual harvest. Cilantro and dill can also be sown during cooler weather.
Insects can be a problem with all of the cabbage family crops. Use row cover or a weekly application of B.t. bacteria spray to prevent cabbageworms. Use insecticidal soap for aphids if needed.
Consider planting a cover crop on vegetable beds to build organic matter for next year’s garden. Mark your calendar to mow and turn under in February or March before the next growing season.
NOW IS THE TIME TO ORDER GARLIC!
Plant in October – November
Stop Watering Your Amaryllis
Harvesting and Drying Gourds
Season For Seeding Lawns
Time to Plant Cover Crops
Evaluate the Summer Vegetable Garden NOW!
- What variety vegetable did you grow?
- Did you actually eat the vegetable and like the flavor?
- Were you able to manage the plant? on a trellis? with stakes?
- Did you give the plant enough space to grow?
- What insects and diseases were most prominent?
- Did you learn to I.D. the insects and diseases and how to manage them?
- Did the soil drain well? What type of problems came from too much rain?
- Was the garden overwhelmed by weeds? what kind of mulch did you use?