Enjoy an Indoor Garden This Winter

Enjoy an Indoor Garden This Winter

By Marge Greenwood

When you have only two pennies left in the world, buy a loaf of bread with one, and a lily with the other.  ~Chinese Proverb

Rich red roses in a flush of bloom; russet and yellow striped petals bursting amid lush green chrysanthemum leaves; pendulous succulents dripping with fat buds and blooms — winter hothouses bring us these out-of-season beauties to delight our eyes and brighten our homes during the holiday months of winter.

Lovely to give and receive, the charms of flowering plants can linger on after all the decorations are put away and the cut flowers are faded and gone.  Some can even be transitioned outside in spring.

Miniature roses and chrysanthemums are beautiful and easy to grow.  Both need bright light, but the flowers will last longer if they are not in direct sunlight while blooming.  Tolerant of some temperature variation, they prefer 60 to 70 degrees, a spot away from heat vents or cold air returns, evenly distributed moisture and good drainage.  Spray with water occasionally or set a saucer filled with gravel and water under the pot to provide humidity.  After blooms fade, don’t expect new growth right away – a resting period is normal after heavy bloom.  If your plant doesn’t appear to be maintaining health, it may need a larger pot.

When all danger of frost is past, roses and mums can be hardened off and planted outdoors in a sunny spot with well-drained, fertile soil.

Most poinsettias end up in the garbage or compost after the holidays.  Admittedly they are a little difficult to care for, and coaxing them to re-bloom takes dedication and vigilance.  But for those up to the challenge the results can be stunningly rewarding.

Ideally, poinsettias prefer 60 to 70 degrees with about six hours of indirect light a day.  Extremes and fluctuation in temperature will cause leaf drop, so when bringing your new poinsettia home, protect it from the cold and position it away from cold windows and warm or cold drafts.  Only water when the soil is dry and remove decorative foil for good drainage.  Never let it sit in standing water.

When leaves drop, usually by early spring, prune back to eight inches, repot and continue to water and fertilize.  After new growth appears and while nighttime temperatures are above 55 degrees, pots can be put outside.  Continue fertilizing and pruning to keep plants healthy and compact. Stop pruning in August.

Now comes the fun!  Beginning in October cover plants each night for fourteen hours of uninterrupted dark (black plastic works great) – then uncover and expose to bright light for six-to-eight hours a day, keeping temps between 60 and 70 degrees. Follow this regime for eight to ten weeks for brilliantly colored bracts by the holidays.  Tip: don’t fertilize your plant while in bloom.   With proper care, you will enjoy your poinsettia for years.

Christmas cactus is an interesting and different plant.   Its arching, dangling growth habit offers interesting visual lines punctuated by tropical-looking flowers.

Preferring cool but not freezing temps, these cacti dislike drafts such as those near a vent or an outside door.  Allow the top inch of soil to dry between thorough waterings.   Do not over water!  As with most tropical plants, however, they do like humidity and respond well to a gravel and water-filled saucer under the pot.  After blooming, place in a cool room and give limited water for a 30-day rest.  A few leaves may drop during this process.

To encourage blooms, cover plants for 12 hours of uninterrupted darkness each night starting in October.  Alternatively, cool temperatures of 50 to 55 degrees will also trigger budding.  This can sometimes be accomplished by setting the plant near a cold window pane.  As buds form on the side near the window, turn plant a quarter turn to expose another side.  The first buds will begin blooming and continue around the plant as you continue to turn it – thus extending bloom time.

Plants can be repotted in early spring – one tip though, they do seem to flower best when kept pot-bound.  This tropical specimen cannot be planted outside, although pots can be placed outside in sheltered areas during stable, warm weather.

The pleasures of flowering plants in winter are worthy of their maintenance, which itself is part of the sustaining gift for those of us with a gardener’s heart.