I claim this post for SCIONS!
January 23rd, 2012This weekend I went to the Golden Gate chapter of the California Rare Fruit Grower’s Scion Exchange, and if that is gobbledegook to you you are not alone but you are also missing out.
Plants can do many things humans cannot. One of the most useful properties possessed by many plants is the ability to be propagated asexually from cuttings. (Of course, if you have plants that you don’t want that are capable of propagating themselves asexually, like for instance invasive blackberry, it can also be one of the most annoying properties.) The simplest way to use this property is by cutting a piece off a plant you want, say a neighbor’s superior fig tree, and potting it up with a degree of care. Skill and luck both play a role in getting the cutting to root properly, but once it does it is a new plant that is genetically identical to the one it was taken from. Certain plants do this well–figs are one of the easiest. A side benefit is that many plants propagated this way tend to bear fruit earlier than those started from seed. In some cases, though, their lifespan may be shorter—the plant’s age doesn’t reset to zero the day you take the cutting.
Many fruit trees are not so cavalier about bits getting broken off and stuck in the ground. All is not lost, however—the ancient technology of grafting permits the gardener with a little skill and a lot of chutzpah to cut a piece of a plant and surgically attach it to another, compatible plant. This can be done for many reasons—apple trees don’t produce true from seed, for instance, so all named varieties have been produced by grafting cuttings onto an apple rootstock. If you have an apple tree that produces apples good enough to eat, chances are it was grafted—look at the trunk close to the soil line for a bulge or irregularity in the bark.
Then again, you might have an apple tree that produces two or more varieties, also through the magic of grafting—you can graft a branch onto an established tree to produce a different variety of the same fruit. In fact, because stone fruit are often compatible with each other, some gardeners with small yards benefit from a “fruit salad” tree that bears plums, apricots, and nectarines throughout the spring and summer.
Grafting is a skill that any gardener can develop. It takes attention to cleanliness and detail, and tools such as a sharp grafting knife and some grafter’s tape or parafilm. There are good videos to get you started (peruse the right hand column for more). Not every gardener wants to graft, but if you want to grow fruit trees and you have limited space, it’s an excellent tool in your toolkit.
For the community garden I’ve been volunteering with, I brought back several figs to start from cuttings, as well as pepino dulce, goji, a superior variety of loquat discovered by Katie Wong that she calls Doxie’s Delight (it produced loquats as big as hen’s eggs in her East Bay yard, and there is a loquat seedling sprouting in the garden that needs to be moved anyway), some pluots to try grafting onto a plum or apricot tree, and a couple varieties of apple to try on our apple tree. It’s a $4 donation to get in the door, and scionwood is free. You can pay $3 for rootstock and $3 for custom grafting to be done for you. If you’re in the Bay Area and have never been to the Scion Exchange, keep an eye out for announcements next January. If you live in a different region, look for a scion exchange near you… FOR SCIONS!



