Amateur Phenology
So. Ummmm. Who’s a little freaked out by this crazy weather? They say Canada is totally backwards especially for an El Niño year with the west coast all wet and wild and the east unseasonably warm and snow-less. I’ve heard that things are also a bit nutty in parts of the U.S and my Northern California friends are talking about super early magnolia blooms.
Just today I received a frantic phone call from my friend Sarah announcing that she had just spotted two yellow, blooming dandelions on her street. That’s exactly how she said it, “Mark this down: two blooming dandelions, January 4, 2007, Toronto, Ontario.”
Sarah also mentioned that dandelions are known as an indicator of weather patterns. Apparently there are people who record when the dandelions bloom in certain areas. While I do know that this kind of pattern study is called Phenology (as gardeners we are all amateur phenologists in some way), I have been unable to find information relating phenology specifically to dandelions. However, this article states that blooming dandelions indicate when the soil temperature is “… between 50 - 55 degrees. That is the same temperature that soil microbes become active, so dandelion flowers are a nice indicator for when the soil is waking up.”
I truly hope my soil is not waking up.
Actually I’m pretty sure it is. Here’s some photographic evidence:

- First up, the crocus is out. No buds yet but I am fearfully watching and wonder what this will mean when ACTUAL spring comes along.

- The pansies didn’t actually stop. Pansies are quite resilient and will often keep blooming until the hard chill really kicks in. The container plants give up much earlier since they are much more exposed to the cold.
I have also noticed that a lot of other early spring risers are coming up in full force. These include perennials and self-seeding annuals such as: artemisia, globe thistle, anise-hyssop, grasses, and giant red mustard. I am not particularly concerned about the long-term welfare of these hardy plants but am worried about how this will fare for the more delicate of the bunch.
Anyone with further interest on how warming has affected gardening may want to check out this cool map of the U.S (Sadly I could not find a Canadian equivillent) that shows how the hardiness zones have been changed to reflect overall climate change.
{via the You Grow Girl Forums}



January 5th, 2007 at 12:21 pm
we just woke up to about 8 inches of unexpected snow, and it’s still coming! about a month and a half ago, the landscaping people put in what i estimated to be about $1000 worth of pansies at the condos where i live and i shook my head and laughed. it snowed a few days later and they all kicked the bucket.
it’s nuts.
January 6th, 2007 at 7:36 am
Pansies live here year-round, but I will say that I am not ready budget-wise, planning-wise, or any-wise for my gardening season to start in JANUARY. I even still have a small bit of clean-up left from last year. It will just have to wait until early-March no matter what the new charts are saying.
January 6th, 2007 at 12:08 pm
Yesterday I saw that one of my hostas seems to be emerging. Oh, and some tulips, too. Columbine never completely died. Neither did the foxgloves or lady’s mantle. It’s nuts.
January 17th, 2007 at 3:40 pm
Our daffodils, dwarf iris, hyacinths, columbine, sidalcea and frits are all a few inches tall. Snowdrops and crocus have been blooming for two weeks. I’m a little nervous about the Big Chill taking them all out… might have to use some pine boughs to cover them soon. I miss our natural insulation–snow!!!
January 17th, 2007 at 3:47 pm
[…] A few posts back I mentioned phenology and how the study of dandelion bloom times can be used as a soil temperature indicator. However, at the time I could not find anything online relating to the actual study and recording of these observations on a larger scale. […]
October 9th, 2007 at 9:44 pm
[…] While I am enjoying a delay in putting my summer gear away I have to admit that I do find the warm temperatures a little bit disturbing since it is a continuation of a trend we saw last year with winter staying mild and rather un-winter-like until well into January. From another vantage point I am fascinated by the way the plants are adapting (or not) to a warmer Fall — instead of going dormant as many of them would at this time of year, plenty of plants just keep keeping on. And some, like the tomatoes and curcubits have either prematurely succumbed to poor conditions early on or are experiencing a second wind after a short break. The sole surviving zucchini plant living in a pot on my rooftop deck has started making flowers again. I have never had a zucchini plant shut down for a while and then come back with a brand new set of leaves and another harvest! As bad as this warm weather may be for the long term, I am learning a lot from really getting first-hand experience of how an extended growing season works in warmer climates. While I have done my homework and know what to expect and I have even experienced second harvests from some early-producing plants in the past, this whole experience is quite different and has been really educational. […]
November 27th, 2007 at 10:36 am
[…] I desperately need to clean up my rooftop garden. Desperately. Double desperately. It’s horrible how long I’ve let it got this year really. The warmer Fall temperatures were wonderfully evil and I just went with it pretending that Fall would continue forever. I rewarded myself for cleaning up at the community garden so early this year. I can put it off a little longer, I said. It will be just like last year, I said. There will not be snow until January and by then everyone will be freaking out and talking about the blooming crocus and dandelion flowers and how the end of the world is neigh and it won’t matter that some of the pots weren’t empty or that the strawberries never did get replanted from the big pot into the ground. […]