The final count is in from the Semperpocalypse. None of the six Sempervivums that were damaged by the sub-zero temperature on Feb. 19 survived. The other four that were subjected to the same conditions still look fine.
I thought three of the damaged ones might make it, but over recent weeks they continued to deteriorate. I thought I could see some green through the webbing on the Arachnoideum, but I don't see it now. I will stick the remains of these three in 2-inch pots in a corner somewhere and announce if any miracles occur, but right now there are new Semps on order and I need their pots.
One reason I was reluctant to give up on the damaged Semps was the little dry ball that fell out of the shipping box on Jan. 28. I decided not to throw it away and today it is the only surviving sibling or descendent of the Arachnoideum.
There is some debris that I haven't tried to remove for fear of damaging the webbing, but the webbing is much thinner now than before. I've posted this "before" picture several times but it's worth comparing this one from less than six weeks ago to today's image. It almost looks like it came out of a cocoon. The plant is currently 1 1/4 inches wide, and I believe it was less than an inch in the older image.
My current Sempervivum inventory includes the relatively new Strawberry Kiwi (Chick Charms), the four survivors of the Semperpocalypse, and the little Arachnoideum. The plants on order include five Sempervivums of the Chick Charms line, developed by hybridizer Chris Hansen of Garden Solutions in Michigan. Receipt of those will get me to 11 varieties.
I also took some other photos today. This one is of the Powder Puff cactus I posted about a few days ago. That bloom has faded and this is a new one. Photographing this flower exposed another deficiency in Photoshop's processing of focus bracketing. It kept bringing the complicated background into focus and ignored the bloom. This is a single image, and I cropped it tight because most of the cactus is out of focus. After an exhaustive several-minute internet search, the two programs that floated to the top as alternatives to Photoshop for focus bracketing are Helicon Soft and Zerene Stacker. Both have trial versions and the licenses are reasonably priced, so I might get one of them. For test results, see my regular blog.
This one didn't have a tag when I acquired it as part of a cheap Home Depot bowl, but I'm sure it is Crassula Ogre Ears. The top half was very yellow when I got it last week, and it is still yellow. But with light and the tiniest bit of liquid fertilizer it is gradually greening.
Yesterday I posted an image of one of the Echeveria Purpusorums sending up a stalk. The other one is stalking also, although not quite as tall yet. My best guess is it is a flower stalk and not a new rosette. Images on the interweb show very tall flower stalks coming out of these plants. If I'm wrong about it being a flower, I'll edit this post and pretend I was right all along. [This image processed in Zerene Stacker.]
I also said one of the unknown Echeverias from the Home Depot bowl was sending out two stalks, probably flowers. Here it is:
And finally, here is the Aeonium Florens. It has added some color since I've been bombarding it with light for the past couple weeks. The second image is the one I posted March 13 and it was much more green.
Also today, I finished loading compost into the greenhouse planter beds, and I had almost none left over. I estimated pretty well on what it would take to fill the grow bags and pots, but I filled the planter beds to the brim and they took a lot more than I thought they would. Fortunately. I've had nightmares since Monday on how I was going to get rid of the excess compost. I'll have 2-3 buckets after I finish sweeping out the truck, which is a manageable number.
The long-range forecast shows lows in the 20s several times in late March and early April. I think engaging the heater at 41 degrees on April 1 will allow me to plant onions in the greenhouse and move a bunch of plants out of the garage. I picked 41 degrees because that is as low as the new heater can go without an external temperature controller. I'll set the controller for the old heater for 36-38 to act as a backup in case the new one fails. I'm going to do a test to see if I can run both heaters at once without blowing a circuit breaker. The old one showed it can maintain the temperature well above freezing even if it is below 20 outside, but I don't trust it.




































