Convolvulus sabatius

The Perils of Plant Protection

Living on the climatically fortunate west coast of Canada, I haven’t paid much attention to winter protection for plants. OK, I’ve wrapped up a big pot containing a dahlia, and moved pelargoniums (“geraniums”) inside for the winter, but for the most part I haven’t worried about winter survival.

Until now. A couple of years ago, my pink gauras failed to sprout in spring after a colder than normal period in February. A year or so later, I lost even the white (presumably tougher) gauras and feared for the survival of a blue Convolvulus. Fortunately the Convolvulus survived, but took its time sprouting out, not emerging until June.

What was going on here? Gauras (also called Lindheimer’s beeblossom) are supposedly hardy to Zone 6, and my place is safely in Zone 8. It wasn’t “wet feet,” either; my soil is as close to sand as it can be this side of a beach, and the drainage is excellent. Not knowing the reason for these losses, I now fret about plant survival every time the temperature descends to -5 C (23 F). That’s happened twice already this winter, and both times saw me racing around with wads of hay to snuggle around any plant I thought might be vulnerable. That includes the aforementioned Convolvulus and a batch of new seed-grown gauras in little pots huddled next to the house wall.

The trouble is, here a cold snap is reliably followed by a rebound into wet and relatively warm — what we call a “pineapple express.” The temperature rises to 10 degrees (50 F) or more, and it rains and rains. The hay mulch gets wet and soggy and packs down over the plants it’s meant to protect. This may not be a problem when the plant is fully dormant, with no top growth, but the gauras and Convolvulus still had some green leaves when I covered them. Unless I rush out and remove the mulch when it warms up and starts to rain, suffocation and rot might kill the plants as surely as the cold would have.

I’m beginning to think the hands-off approach might be better. Once I’ve situated the plants in the right sort of place, they should be able to cope with conditions in the full range of “normal.” If they’re too fussy and delicate to do that, let ’em die.

But those gauras are so elegant and graceful. They bloom for months and are drought-tolerant. I hope my little plants make it to spring, either because or in despite of my efforts.

Gaura lindheimeri (from Wikimedia Commons)

Gaura lindheimeri (from Wikimedia Commons)

 

The Garden in 2014: a backward look at year’s end

The year began with a seriously cold period in early February that caused great anxiety in the gardener, who hadn’t provided wraps and covers for the most tender plants. Fretting lasted well into spring. Did the last Gaura lindheimeri perish? Yes. What about Convolvulus sabatius, the charming blue relative of the hated bindweed? For a long time it seemed so, but on the first of June a sprout emerged.

Convolvulus sabatius in September 2013

Convolvulus sabatius in September 2013

After putting on a pleasing show in 2013 the blue poppies failed to bloom. Lots of leaves, no flower stalks. Was it because of the cold in February, which delayed sprouting out? Or the gardener’s failure to supply extra nutrients, especially considering that the plants grow on top of the roots of a large magnolia. These poppies refuse to compete with roots. They would rather die, and there’s every chance they will not appear next spring.

Not this year!

Not this year!

Then came a warm, dry summer. Not hot, but definitely warm. It was a great summer for tomatoes. By September the ten plants in large pots were producing well — nice ripe tomatoes.

Perfect Tomatoes!

Perfect Tomatoes!

Roses did well too — the anonymous pinky-white climber slung over one of the Norway maples, and even Fragrant Cloud, which got deer-chomped in 2013.

Climbing rose in maple

Climbing rose in maple

Rose "Fragrant Cloud"

Rose “Fragrant Cloud”

Deer were not much of a factor this year, after being a huge one in 2012 and 2013. The flimsy deer fence put up at their preferred entry point did the trick, but more fundamentally this area seems no longer to be on their route. Even so, a couple of hostas, formerly large and prosperous, were not helped by being chomped just as they were dealing with what must be a fresh invasion of maple roots into their bed.

Asters did especially well, especially the two large clumps of a purple variety (name unknown) in the front garden.

One of the better scenes in the front garden this year

One of the better scenes in the front garden this year

In late September was the Coming of the Dog — Nelly the Newfoundland puppy.

Nelly 2014

The back garden is now a maze of small fences intended to prevent casual incursions. They seem to be working, but give the place an odd look. It remains to be seen how garden work will go in the vicinity of these barriers.

December 26, 2014

December 26,2014

But the Chinese witch hazel (Hamamelis mollis) has set more buds than it has ever managed to before. Some of them are preparing to open, unfurling threads of yellow.

Witch hazel buds

Witch hazel buds