Scanning page after page on late night searches for interesting plants, there is one that has always topped my list of most lusted after leaf.
Hablitzia tamnoides, or Caucasion mountain spinach, is the sole member of the genus Hablitzia, closely related to Amaranth. It is a perennial vine, growing 6-10 ft (or so), hardy to zone 4 by most accounts, boasting the title of ‘the’ perennial spinach, with harvest beginning in very early spring. Tantalizing, isn’t it?
The plant is also said to be triploid, which is supposed to result in poor germination. Diploid strains seem to have surfaced in the gene pool after increasing interest in the plant. Years ago the seed was only available per the kindness of a handful of growers -sometimes at a dollar a seed as I recall -aside from any shipping.
I have traded, bought, begged hablitzia seed from several sources, for several years, gotten several strains. Every year I have carried out the most carefully composed care I can contrive to obtain a healthy plant. They have invariably died.
Every year I have inched closer, with barely a sprout the first year. In following years, I began getting what I think must be diploid seed strains, because the germination greatly improved to about 90 percent. I also began stratifying them for shorter durations; because one gardener told me he gets sprouts by simply putting the planted flat in his root cellar for two weeks in fall. Which one allowed the improvement in germination is hard to tell.
Once germination was no longer a problem, I achieved whole trays of the plants. This was only for one by one, day by day, each plant to wilt. The next day I’d find it flat on the ground, dead.
I figured it must be a bacterial infection. What kind I am not sure. The only disease I have ever heard hablitzia succumbs to is botrytis, but I had never seen a sign of the ‘ash.’
It may have just been post hoc, but I found the greatest onslaught usually followed even slight long term excess of water -such as watering two days in a row. Now I keep a tight leash on any watering, waiting until the soil completely dries out, then drenching. The plants seem to like this. Other variables may be at work.
This year, I finally made a breakthrough: I have continued using more and more rock powder, with better and better results for the plants. Most describe hablitzia as a ‘woodland’ plant; but the situations that seem to give the best results simulate dry river beds, or rock crevices. They seem to like tons of available minerals, little nitrogen, and alternating dry and wet, with lots of sun. Providing enough rock seems to be especially important.
I started the seeds last year in a simple organic blend of potting soil. This includes small amounts of peat moss, and chopped wood chips, and has proven the best choice. Once sprouts appeared, I dusted the plants heavily with a very silica-rich rock powder called wollastonite.*
Also, I only filled the pot about half way with soil. This way the walls block most movement of air, and reflect heat and light on the seedlings. Because the soil is thinner, it dries out faster too.
Once the seedlings achieved true leaves, I transplanted into simple, unamended clay I dug up from under a healthy clover plant, mixed with wollastonite until it was white. I put the transplanted seedlings in the shade, and didn’t water for the first day. When I did finally water, I put them in full sun for a couple hours, to dry off the leaves, then put back in the shade.
The plants that followed were some of the most sturdy specimen I have ever grown. I dusted again with wollastonite, and moistened with water I added a little honey to (antibacterial properties). Bacterial wilt stayed away for a long time.
I gave away a couple of these plants, hoping they would live somewhere. Haven’t heard back any successful reports. I gave two to one of my clients. These I dusted and sprayed during a later visit in hopes of holding off any possible infection. One died. One took.
Yes, one continued to grow beyond the size of any hablitzia I have grown. Then it vined. It even bloomed! This spring, it’s sprouting!
Obviously I’m just short of delirious. What’s more, I am reverse engineering the heck out of this situation in the hopes I can actually get one to grow in Mortal Tree. I transplanted several of the other plants to the food forest last year. They all died -some due to animals though. Perhaps they would have overcome the wilt otherwise.
The situation at my client’s is a southeast corner of their white brick house, next to a concrete patio. This protects from all the most undesirable winds, but is wide open to early morning, and some mid-day sun. It is also under the rain gutter, which overflows in downpours, but dries out quickly after because of all the reflected sun. The soil isn’t notably good -actually quite gravelly there. Spent flower bouquets, and a few kitchen scraps under thin grass in a sort of thin Lasagna Garden fashion provides a small flow of nutrients. If you would like to learn more about the site, see this For example:
Eventually I will get one of these plants to flourish in Mortal Tree. Until then, I am ecstatic my clients have achieved one of these precious plants, and look forward to hearing what they think of the flavor when they begin harvesting. That will probably be next year of course. We want to be sure this plant is here to stay!
*I got it from the mine owner when I met him at a conference, but he sells as small as 50 lb bags on request through his website.