I can’t imagine any other plant that embodies the abundance and exuberant excess of the holidays quite like a Schlumbergera. Blithewold’s recently gifted Thanksgiving/Christmas cactus in particular maybe — though I did hear that it was a good year for Schlumbergera all around. My two at home bloomed their little arms off too – but not like this one. It’s been going non-stop since our first Friday Sparkle right after Thanksgiving and shows no signs of quitting. And every Friday, as it stops visitors in their tracks, they’ve asked me and Gail the age-old questions of why theirs isn’t blooming/why it does some years and not others/why one plant will bloom while another doesn’t?

We all know they are day-length sensitive, needing a period of darkness to set their buds. But this does not mean they should be locked in a closet for weeks at a time. Bad idea, actually, to deprive them of daylight altogether like that. Better to give them natural nights, at least 13 hours long, unpolluted by lamplight. (I use that advice as a good excuse to go to bed at a reasonable hour.)

They also need cool nights in combination with long ones and that right there might be why some refuse to bloom. As soon as we turn the heat on in the house — unless we program the thermostat for night dips into the 50s — our modern, efficient, weather-sealed houses may be too evenly modulated to toggle the temperature trigger. Leaving plants outside at least until the forecast threatens dips into the 40s will probably give them the requisite weeks of cool, dark nights.

Although my favorite tropical plant reference book, the weighty Exotica by A. F. Graf, recommends temperatures that swing only down into the low 60s, we have used this Christmas cactus to decorate the “cold” end greenhouse where night temps dip into the 40s, and I would bet that’s partly why it has held its blooms so long. As if its been preserved in the refrigerator. By contrast, my plants at home, after the first and fast glorious bloom, dropped most of their follow-up buds. It could be they’re too warm but also maybe too wet. Although the soil shouldn’t be allowed to completely dry out, it shouldn’t stay overly moist either, especially through the winter.

The schlumbergera’s popularity among even non-gardeners belies their evident finickiness and difficulty as houseplants. If they didn’t bloom more often than not and survive for years to outgrow their holiday pedestals and mantels, they wouldn’t have become the passalong favorites that they are.

Can you count on yours to bloom for the holidays? Does it stay in bloom for ages too — or at least for the 12 days of Christmas? What’s your secret of success?

I never much liked the idea that the world might end today. It’s so much better that it’s simply the start of a whole new cycle. Just like every other day that rolls into another in a constant unending loop. But I’m all for acknowledging the passage of time every so often. In a way it makes sense here at Blithewold to mark the new year on January first like everyone else. Even though the grounds remain open, our season officially wraps up when the mansion closes for the winter. But as a gardener, I’m inclined to celebrate the new year on the Winter Solstice instead. The day the sun sets to climb a little higher the next. We might have a few long, quiet, cold months ahead before the sun breaks out over the bamboo and before we see much evidence of renewal but, like every other day of the year, there are signs pointing to the next.

Granted, right now it’s hard to tell if some of the signs I’m seeing are renewal or last gasps. Some are simply promises, like the cottony seeds of Anemone tomentosa ‘Robustissima’. I suspect that the Daphne transatlantica ‘Summer Ice’ just doesn’t know when to quit but doesn’t it masquerade beautifully as a sign of spring? And the Helleborus foetidus blooming out of sequence seems to be celebrating its new year a couple months early. Why not?

Are you celebrating the new year, a new cycle, and a new era today too?

It seems impossible to speak or think about anything else right now. The news is too full of horrific loss and our hearts are too broken. I won’t claim to have a clue about how to fix anything – as if there is a fix – but I know I’m not alone in believing in the healing power of nature. In cathartic walks in the rain. In the deep inhale of a favorite fragrance. In a handful of potting soil. In the obvious preciousness of all life.

Are you finding solace? Where?

I know there are people in the world who think that houseplants/indoor gardens are messy pains in the nether regions, but I kind of love that about them. They provide just what I need to occupy, exercise, and dirty my otherwise too-clean, itchy-to-garden fingers during the winter. As a matter of fact, grooming plants is such a pleasure that I feel almost guilty doing it, and put it off because I think I should attend to other, more odious, tasks first. Like paperwork. Or dusting cobwebs down cellar. But it must be done regularly – daily to weekly – to keep the plants healthy and our spaces, whether living room or greenhouse, tidy, livable, and pleasant. To me it’s as gratifying as weeding (and there’s some of that to do too) because the before-and-after difference is so apparent.

At home I groom when I water everything, about once a week. Here we water more often because the plants are getting so much more sun, and we groom as we go, on the fly usually. But sometimes – the best times – we get a troop of volunteers in on a sunny day, or putter bench by bench ourselves for an hour or two at a time. We pick yellow and dropped leaves, check for infestations and mold, and keep our eyes peeled for plants in need of a nip and tuck (taking cuttings as we go), or any that might be desperate for repotting. It’s like getting reacquainted every time because so much can change from one day or week to the next. Where did those aphids come from? Didn’t we just wash the scale and mold off those lemons? (Last spring…) And there’s nothing better than the sweet signs of new growth. The ferns in particular captivate the heck out of me…

Hover over the pictures for captions (my assessments) or click on them for a bigger view. Though you might not need such a close look at aphids and scale…

Does grooming houseplants fulfill your gardening impulse over the winter too?

The plants in the greenhouse are more ambitious than I am. If I possibly could, I would spend the short, dark days of December curled up on the couch. But our plants are making use of what little sunlight is on offer, along with the eternal-spring (relative) warmth of supplemental radiant heat, and actually growing. Go figure. The cuttings we took in September are well-branched and blooming. The ones we took in October and potted up last month have produced three or more sets of leaves. And now they all need pinching to keep their focus on growing more than flowering. And there’s no way I can cut these plants back without turning those beautiful tips into more cuttings. They get full credit for keeping me off the couch.

Taking cuttings of our cuttings is on the list of to-dos every December despite the fact that low light and lower temperatures will make them take longer to root. Some of them might not make it. But from the ones that do, we’ll take more cuttings in the spring. That way, as the plants we already made grow and become pot stressed and unhappy, we’ll have a rotation of fresh plants to take their place if need be. (Though we do often plant even the oldest, woodiest, worst looking plants because they take off like the picture of health once they go in the ground.)

But I can’t let myself go crazy propagating because space is tight in the greenhouse and we don’t need more of everything. We also don’t altogether know what we’ll need because we only have ideas about next year’s gardens so far, not actual plans. That’s for January. I’m confident that we will always plant as many African blue basils as we have, whether it’s a tray-full or 10 trays-full, and Gail and I are both smitten with a new-to-us Salvia called ‘Wendy’s Wish’. (More about that one when I do top 12 for 2012 post.) We also always make a few more heliotrope and assorted cuphea over the course of the winter, but I had to restrain myself from sticking every perfect cutting I pinched. A tray-full will do until we know where we’ll use them next season and how many we’ll ultimately need.

Are you feeling as ambitious as I am this December? Did you take cuttings this fall? Have you been taking cuttings of those cuttings or will you wait until spring?