An addition........the SSSC catalog, copied below, stated this strain could not be grown outside without starting them to flower inside first. I believe this trait has been eliminated by the breeding process over the years.
[h=1]Super Sativa Seed Club - William's Wonder[/h]M31
A special Indica Indoor hybrid. Very suitable for commercial indoor growing when making use of the plantlet method. Pick out the plants you like the best and reproduce. Heavy yields of extremely resinous buds. The buds are, due to their structure and the amount of resin on them, weighting very heavy. Small, compact plants. You can easily grow 4 crops a year indoors. Experienced growers can yield 1500-2000 grams per square meter per year. Two people could not finish a joint. The plant on the picture has been taken outdoors after flowering was inducted indoors. The plant turned purple because of a very cold fall. Williams Wonder can't be grown outdoors without being inducted to flower artificially previously.
I believe I mentioned this upthread, but I'll expand a bit here.
So far as I can tell, that bit about requiring indoor flowering is completely false. I've never heard of any strain that won't flower outdoors when the dark hours are long enough, and it doesn't make fundamental sense. The strain is probably an Afghani indica going back hundreds of years when there was ONLY outdoor growing. How does a plant "know" if its indoors, outdoors, or in a greenhouse? I asked Reddog of Sickmeds why he included it in HIS ad copy and he said that since he never actually grew any outside himself, he thought it was safer to just include the warning until he did know.
More to the point, people *DO* grow Williams Wonder outdoors, its historically been grown outdoors, and its still grown outdoors. I haven't done it personally, but I know more than one person who has grown it outside, including at least one from "back in the day". A few posters in this thread have mentioned that they used to grow it outdoors. I also believe more than one person has reported to Sickmeds that they've grown his version outdoors successfully.
So yes. .. you CAN grow it outside, if you like, with only one caveat.
I think where this "rumor" comes from is that because of the extreme bud density, this strain is particularly susceptible to bud rot. So if you're growing it in rainy Holland, or in many places with rainy autumns, you have to start it flowering indoors early, so that it finishes early, because if it doesn't and it runs into humid September, the crop can easily get infected by botyritis (grey mold) and be ruined. Note that the same is true of many indicas. Afghani plants are acclimatized to arid (desert) climates, and don't like humidity
On the rest of the SSSC ad copy, its dead on.
-The "plantlet method" is the same as "Sea of Green"; just that the term "Sea of green" wasn't in wide use until the early 1990s. Because of the large fat central cola and minimal stretch, this plant would work great for SOG, and 20 years ago, this was one of the SOG "standards". The buds are full of resin, dense, and heavy for their size (see below).
-Yes, you definitely could grow 4 crops of this a year from seed (ie one every 13 weeks) indoors, if you wanted to. That's not particularly remarkable today with short-flowering hybrids that go even faster than that, but in the late 1980s it was a lot more interesting.
-In my experience one joint is definitely enough for two people. I've already related a story about how one joint couchlocked me and two friends. With this one, I've found that with a nice potent top bud, three puffs from a joint and I don't want any more. This wasn't called "Williams one hit Wonder" for nothing!
And here's another closeup from that last grow. Note the trichrome density:
