October may provide brilliant color in the landscape but it also signals an end of another growing season. Let's look at some of the things needed to be done in the landscape.
Dahlias can remain in the ground until after frost. Cut off the stems six inches above the ground and lift carefully, for the tubers are brittle and break off easily. Discard any that do. Place the clumps in flats, stem side down, and let them dry off before storing. Just before storing cut off the fine roots and cut the stem back to within an inch or two of the crown. They are best stored in a cool place (about 40 degrees) but may be stored at a warmer temperature if covered with peatmoss or sand. Line the storage boxes with paper. A dusting of sulphur before storing will prevent rot. Be sure to tie labels to the clumps so you will know what is what next year.
Tuberous begonias are lifted after the foliage has yellowed, but don't remove the foliage until it is dry. Remove the dried stems and clean off the dry soil. Store the tubers in flats in a warm place (50 to 60 degrees) and cover them with peatmoss. They need good circulation of air to prevent rot.
Cannas should be lifted after the first frost and stored in a cool place. To prevent shriveling cover them with dry peatmoss or sand. Many, however, no longer store canna roots over winter, preferring to buy live plants each spring.
Lift Gladiolus corms as the leaves begin to turn yellow. After lifting, cut the foliage to within three inches of the corms and then let them dry off in the sun if possible for a little while each day. When completely dry, dust them with an insecticide to prevent thrips injury. Store them uncovered in a cool place.
Ismenes (Peruvian daffodils) must be lifted very carefully to preserve the root system. So, dig deeply. Spread out the plants indoors to dry. Remove the tops but not the roots. Store them uncovered in a place where the temperature will not go below 50 degrees.
Montbretias may be left in the ground if given a heavy covering of leaves. If lifted they should be removed from the ground in clumps with the soil clinging to them. Don't let the soil dry out.
Tuberose bulbs should be lifted in clumps and dried off for storage in a warm dry place. Divide into single bulbs during the winter or use a second year without dividing the clumps.
In The Greenhouse
Repotting is one of the round-the-year jobs. When in doubt about the need for repotting, knock the plant like the watermelon peperomia out of the pot. If the ball is well covered with roots it is time for repotting. Don't repot flowering plants that have flower buds forming. Soak new flower pots in a tub of water for at least a half hour before they are used.
Freesias that were potted and placed in the coldframe should now have several inches of growth. Bring them into a cool part of the greenhouse before frost. For better results give them a weekly feeding.
Watering. Don't just turn on the hose and water everything in sight. Water plants when they need it. When in doubt give the pot a sharp knock with the handle of your pocketknife and if the pot rings water is needed. A dull thud indicates the soil is still damp. Soil in benches that feels dry and somewhat crumbly needs a thorough soaking with the hose or watering pot.
Author Resource:
Join Thomas Fryd at http://www.plant-care.com as he continues to explore more effective ways on watermelon peperomia .
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