As the first snow flurries fall outside my window, my thoughts turn to winter flowering houseplants. The big three in my mind are Thanksgiving cactus, Christmas poinsettias, and cyclamen for Valentine's.
My mom recently brought her Thanksgiving cactus upstairs so we could enjoy its beautiful salmon-pink blooms. Usually she is the only one who sees it in its basement window home. She's had it 20 years and it thrives on her benign neglect.
Thanksgiving cactus, or Schlumbergera truncata, is distinct from Christmas cactus, Schlumbergera x Buckleyi, in that is blooms in November and has more sharply toothed leaves. Both plants need 12-14 hours of darkness in the fall to bloom. You can either put it in a closet from 6 pm to 8 am every day from mid September on, or situate it in a sunny window in an unused room.
Do not over water. I repeat. Do not over water. These holiday cacti are epiphytes, meaning in the wild they grow in the air attached to a tree or other large plant. They do not need much moisture, or soil, to thrive.
Holiday cacti are easy to propagate from cuttings, snip a stem with 3-4 leaves, dip it in rooting hormone and stick it in moist soil. If you want to get fancy, place a plastic bag over it for a week or two to create a humid tent. We've noticed these cacti bloom much better when allowed to get root bound. Don't be in a hurry to repot them.
Everyone loves or loves to hate poinsettias at Christmas. These Mexican native shrubs have become a Christmas staple in the hundred years since the US ambassador to Mexico, Joel Poinsett, introduced them to us.
The folklore surrounding poinsettias describes two poor children with no gift to bring to the nativity scene who pick some weeds along their path. When laid on the manger, the greenery burst forth into brilliant red flowers. What a miraculous gift for the Christ child.
While I was in Florida my school grew and trialed around 200 varieties of poinsettias every year for the various breeding companies. One hundred years of breeding has created some real eye-poppers, but my favorite is still red.
Like the cacti above, poinsettias require a dark period to bloom. If you want to keep yours from year to year, you have to follow the closet trick described above. However, poinsettias are more finicky than cacti and I would recommend buying a new one.
The other holiday flower I mentioned is cyclamen. When I was a girl I remember Dad bringing mom and me little pots of cyclamen for Valentine's Day. I think my brother got Matchbox cars.
There are several species of hardy cyclamen that bloom in our shade gardens in the fall. Unfortunately, the florist cyclamens with large delicately-fragrant blooms in shades of pink, purple, red and white are not hardy.
These cyclamens are native to the Mediterranean and North African regions. Accordingly, they don't like high heat and too much water. After their bloom period, the foliage fades and the plants go dormant. Don't worry, this is normal and you haven't killed it. You can put it outside on a covered porch for the summer, but be sure to bring it in before temps go below 50.
Water it only sporadically when the soil is very dry. If you don't take it outside, put it in a windowsill and forget it for 2-3 months. When the foliage begins to perk back up again, resume watering and fertilizing. Like African violets, try to avoid getting water on the leaves and crown.
With all these holiday favorites, benign neglect seems to be the key. Let them get a little root bound, don't over water them, and put them in a sunny window and forget them. Luckily this holiday season, in the hustle and bustle of shopping, cooking and merriment, your houseplants don't need much care to strut their stuff.