September 28, 2006
September 28th, 2006 · by Jim Hole
Hits & Misses: ‘Golden Spice’ Pear and flowerless lotus vine
Question of the Week: What variety is this?
Timelines: Publishing projects
Science and Technology: Masting maples
It is always interesting to see what lengths people will go to in order to kill weeds. This past week I spoke with a woman who proudly shared the tale of her thistle-killing adventures. She purchased a syringe from the local drugstore, went home and cut the top off a bunch of thistle seed heads. She then proceeded to shoot a few milliliters of concentrated Round-up down the ‘throat’ of the thistles, very effectively killing off the weeds. Apparently, the drugstore staff wouldn’t sell her a syringe complete with a needle, but the syringe’s barrel proved to be all that was needed to do the trick. Now, I don’t advocate this method for two reasons: first, using concentrated pesticides is expensive, wasteful, and potentially unsafe. And secondly, think of the implications if that syringe was used inadvertently for a non-pesticide use!
Hits & Misses
Hits: HARDY PEAR TREES
If you are looking for a tasty pear that is hardy in regions with cold winters, ‘Golden Spice’ might be just the ticket. This year’s warm summer allowed the tree in our test orchard to produce a bumper crop. Golden Spice bears small fruit (only about one quarter to half the size of the pears that you find in the grocery stores), but the fruit is very sweet with an attractive red blush. Many pear varieties ripen and fall quickly to the ground, often while still green, but this variety tends to ripen nicely on the tree, which allows me to enjoy a ripe, delectable pear right in the orchard. Another reason to grow this tree is that it also offers lovely blooms in the spring.

Golden Spice Pear
Misses: WHERE HAVE ALL THE FLOWERS GONE?
One plant that has annoyed me this past summer is the lotus vine (Lotus maculatus). This annual vine is touted as having wonderful parrot-beak shaped flowers in shades of yellow, orange and red. The problem is that I’ve found the flowers, at least in my area, to be as rare as wild parrots. There is no doubt that lotus vine produces wonderful masses of airy foliage that adds texture to containers, but the city of Edmonton has used it in many pots downtown, and I failed to see one single flower on any of them. I’ve concluded that if you’re growing lotus vine for the vine, you won’t be disappointed, but if it’s flowers you are after, this isn’t the vine for Northern gardeners.
Question of the Week
WHAT VARIETY IS THIS?
We get a lot of samples of fruit this time of year from people hoping to determine the variety of their fruit tree. Often, the best we can do is provide an educated guess. It has been estimated that there are currently over 1000 varieties of apples alone being grown on the Prairies. Interestingly, some of the best varieties of fruit are unknown to the commercial trade in North America simply because someone’s grandfather or grandmother brought a favorite apple or pear from ‘the old country’ and planted it for future generations to enjoy. Many of those trees could truly be one-of-a-kind varieties in our region.
Timelines
WRITE, DARN IT, WRITE!
There was a time when every area of our greenhouse slowed in activity before prepping for the next swell of business. Not so any more for our publishing department. I’m busy writing weekly newspaper columns, and in addition to the Notebook, we have two new books (Indoor Plants and Landscaping Front Yards) in development and have begun work on our annual Spring Gardening magazine, which celebrates its tenth anniversary this year. There seems to be no break in sight.
Science & Technology
MASTING MAPLES
Maples seem to be ‘masting’ this year. Masting is a condition where virtually all of the individual plants from an entire species of plant in a particular region produce an extraordinarily large amount of seed. Some people think that masting is equivalent to forecasting. In other words, plants preparing for an upcoming severe winter. The reality is that plants can’t predict the future, but they can reflect on the past. Stress from a series of dry winters and summers can cause plants, like maples, to set lots of seed. Basically, if plants sense that they could succumb to drought, seed becomes their best resource to ensure reproduction.
Next Week
We will be experimenting with a change of format for Jim’s Notebook. In order to include more pictures and graphics but still keep the file sizes down we are going to try switching to a pdf format. By using Adobe Reader or Preview you’ll be able to view the files or print them out for reading later.
