and the winner is…
Burned, boiled, scraped with a rasp, doused in acid, or left alone? What’s the best way to germinate manzanita seeds?
I’d begun a little kitchen experiment over two months ago to see which technique would give the best germination for the Mexican (or pointleaf) manzanita, Actostaphylos pungens. As of a couple days ago, the winner is: scraped with a rasp.Here are the first two tiny seedlings that breached their seed coats and made it up to daylight. I’d filed down through into the hard seed coat on the seeds of this batch, letting moisture reach the embryo inside, and to make it easier for the new plant to emerge. (In gardener-speak the process is called “scarification.”)
I’ll post more results as the other seedlings emerge. If they ever emerge. This is not one of those instant gratification, buy-it-at-the-home-store-and-stick-it-in-the-ground experiments…
December 20 2008 11:01 am | Categories: gardening • my garden | Tags: Add new tag • Mexican manzanita • pointleaf manzanita • seedlings • seeds



Greg on 20 Dec 2008 at 2:02 pm #
Oh, congratulations and welcome to these first two seedlings. I look forward to watching their progress.
Eleanor at OutOfDoors on 27 Dec 2008 at 5:14 pm #
makes sense if you consider that the seeds might have been prepared to brave the digestion of various animals…probably being chewed in the process. the resilience (aka stubbornness) of nature is wonderful, no?
lostlandscape on 30 Dec 2008 at 12:24 pm #
I guess I was slightly surprised at the results. The manzanita is adapted to fires, with new plants replacing old ones as they burn. So the heat and flame treatments didn’t have the same effect as breaking into the seedcoat. The other treatments may still yield some results, so I won’t be tossing the pots for some time…
Jeremy on 11 Jul 2009 at 11:35 am #
Any updates?
lostlandscape on 11 Jul 2009 at 12:00 pm #
Jeremy, still nothing from the seeds that weren’t scarified. I’ll continue watering them through at least the winter in hopes that some will germinate.
Jeremy on 11 Jul 2009 at 1:17 pm #
I went hiking Thursday in the Santa Monica mountains and grabbed a few handfuls of berries from the manzanita trees (A. glauca?). I found this site today while looking for germination techniques. Yesterday I put some in boiling water and let them cool to room temperature…and another batch has been sitting in vinegar. Now I’m sanding down a few seeds to round out the experiment. No fire and no sulfuric acid for me. Do you think the two months in the cold is required? A few gardening sites don’t mention it…and claim success. I don’t have any room in my dorm-sized fridge!
lostlandscape on 11 Jul 2009 at 1:39 pm #
I’d read somewhere about how chilling the seeds would help and didn’t do a control without chilling. Considering your seeds come from a location not far from the coast, I’d guess that doing something to the seed coat would probably be more important than a couple months in a dorm fridge. Still I’d be curious if the seeds would respond only to moisture since the rains usually come with cooler weather. Let me know how your experiment turns out.