Posts Tagged grafted tomatoes
Veggie Experiment Updates
Posted by piedmontgardener in Greenhouse growing, piedmont gardening, Vegetable Gardening on May 29, 2013
I am happy to report that Wonder Spouse’s Great Potato Experiment appears to be proceeding well. You may recall that WS is trying grow-bags for his potatoes this year to thwart the greedy chomping of voracious voles on innocent tubers. He began by filling the bags one third of the way full of compost and soil, then planted his potatoes — three kinds, one in each bag. The above photo is an attempt to get all three bags in one shot. It’s not easy. They have grown — a lot.
Here’s what two of the bags looked like on May 9. At that point, Wonder Spouse had folded up another third of the bag and filled in more compost and soil around the stems of the enthusiastic plants.
Over this past long holiday weekend, he unfolded the final third of the bags, bringing them to their full height. Once again, he filled in compost and soil around the stems of the plants. The idea here is that new potatoes are produced from the newly covered stem nodes, thereby producing successive layers of tubers.
Here’s what two of the bags looked like a day or so after he filled the bags for the final time:
Already, the plants are taller than what you see in the photo. The burning question plaguing Wonder Spouse’s potato-fevered brain is, “Do I have growing tubers, and are they numerous?” “There’s the rub,” as the Bard once wrote.
The same methodology that we think is thwarting the voles is also preventing Wonder Spouse from checking on tuber production. The plants are jam-packed into those bags. To try to dig into them seeking tubers would be to risk damaging the plants.
Thus, Wonder Spouse, aka Mr. Potato Head, impatiently waits. Potato harvest traditionally occurs when the plants begin to fade and die, usually some time in June around here. New potatoes are said to be ready for harvest when the plants bloom. Ours bloomed a bit, but Wonder Spouse decided not to risk damaging his long-term prospects for a healthy potato yield.
And so we wait, watering occasionally. And when I foliar feed the veggies in a day or so, I’ll be sure to give the potatoes a dose too. Meanwhile, the suspense builds…
You may also recall that I had planned to compare the same varieties of two grafted tomato plants with two seed-grown plants of the same types. However, the grafted plants I received in the mail were past recovery on arrival, as I documented here. It turns out, that’s not the end of the story.
Via a terse e-mail from customer support, I was informed that my money for the plants would be refunded. I didn’t ask for this; they offered. On the other hand, the nice folks at the Oregon greenhouse operation that produces the grafted plants for the wholesale market wrote me several e-mails, including one in which they offered to send me new plants. I thanked them for their kind offer, but declined, pointing out that it was too late for a fair comparison, given the then-enormous size of my seed-grown tomatoes in my little greenhouse.
I was forced to wait much later than usual this year to plant out my tomatoes. Most years, they are in the ground and growing by late April. This year, it was about two weeks later. I was trying to avoid exposing the transplants to nighttime temperatures below 50 degrees Fahrenheit. I didn’t succeed. This has been one wacky weather spring. Last Saturday night — May 26 — the temperature in my garden dropped to 38 degrees! Fortunately, there was no frost, the sun came up quickly, and no plants appeared to be damaged. However, their growth has been slower than normal, I suspect, due to the chilly nighttime temperatures.
On May 9, I was feeling good about the summer vegetable garden. My beans were coming up with impressive enthusiasm, and the seed-grown tomato transplants appeared to be adjusting well to their new surroundings. Imagine my astonishment when that day’s mail included a box of two grafted tomato plants from the company that had promised me a refund. I was flabbergasted — and confused. And curious. What would the plants look like this time around?
If you compare these to the pictures of the ones I received previously, the difference in vigor is apparent. I didn’t ask for these plants, and they were vastly smaller than their seed-grown equivalents already in the summer garden, but they were here. So I did what any obsessive gardener would do — I planted them the next day.
When I unpacked the box, I discovered an addition to the packing instructions. This was not in the first delivery I received:
Trust me, those first plants I received were not salvageable even by gardeners with two green thumbs.
I took the little plants to my greenhouse and arranged them for a photographic comparison:
If you click on the above photo to enlarge it, you should be able to see that the newly arrived grafted plants are in front. Behind them are the dead stubs of the first grafted plants that were sent to me. Behind them are two seed-grown plants of the same varieties that I didn’t have room for in the garden. I deemed these plants to be lesser candidates for transplantation, so they lingered in the greenhouse as back-ups, if needed. Brandywines are on the left, Goliaths on the right.
Here’s what the plants looked like in the garden this past weekend, about two weeks since they were first transplanted.
It may be a little difficult to tell from these photos, but I would estimate that the grafted plants were about a third of the size of the seed-grown specimens. All my seed-grown tomato transplants are now sporting green fruits, as you can see here:
To confuse me further, a few days ago, the company from which I ordered the grafted plants credited my credit card for the plants. I guess they were trying to be nice, which I appreciate, but I would have much preferred that a human being had contacted me with an apology instead.
Bottom line: I will attempt to proceed with the grafted vs. seed-grown tomato experiment as best I can. Measuring growth rates is mostly a subjective matter, of course. But I can count the number of fruits each plant produces. And I can record when the plants are overcome by the many diseases that usually claim my tomatoes by late August. Brandywines are heirlooms, meaning they lack hybrid resistance to diseases. In my garden, this usually translates to the production of a few delicious fruits, then the demise of the plant to disease. Will reputed grafted vigor keep that Brandywine alive and productive longer?
Stay tuned, garden fans. I’ll keep you posted.
Seedling vs. Grafted Tomato: No Contest
Posted by piedmontgardener in Greenhouse growing, piedmont gardening, Vegetable Gardening on May 1, 2013
Talk about a one-sided fight, my plan to test the same varieties of grafted tomatoes against their seedling equivalents was a total bust. Why, you ask? Because when the grafted plants I ordered arrived last Thursday, this is what they looked like when I opened the box:
If you click on the above photo to enlarge it, you’ll see that the plant on the right was broken when I opened the box. The leaves of the plant on the left — although they look a bit greener — are also wilted beyond recovery. Why? The soil in their little pots was Dust Bowl dry. No moisture at all.
This is one of those times when I let my enthusiasm for cutting-edge plants push me past careful reasoning. As I mentioned in my first post about this back in January, gardening magazines and catalogs have been full of buzz about the benefits of growing grafted vegetables. I didn’t really buy the hype, but I was curious, which is why I decided to try growing the same varieties of grafted and seedling tomatoes to see for myself.
But I didn’t research carefully. I impulsively ordered my grafted plants from the same company where I order my tomato and pepper seeds. Seeds from this company always give me near-100% germination and yield consistently healthy, productive plants, so I assumed they’d deliver similar quality in their grafted plants. What I didn’t know — because I didn’t ask — is that my tomato seed company does not produce the grafted tomatoes themselves. They buy them from a wholesale nursery that, I gather, has patented a line of grafted vegetables, which they produce and sell to retailers.
There’s nothing intrinsically wrong with this model, if all parties plan carefully to compensate for the travails of shipping tender summer vegetables across North America. However, if the plants I received are any indication, careful shipping was not part of the plan.
The company I order my tomato seeds from is in Wisconsin — an area where winter cold remains abundant. And from the insert with my grafted plants, I learned that the wholesale nursery that provided the grafted plants is in Oregon. Neither of these locations is, of course, near my location in North Carolina. And our growing seasons are not the same by a long shot. If I had thought about this more carefully, I would have realized that it was not likely that a company in Wisconsin could ship me healthy tomato plants in time for me to plant them out with the rest of my summer garden. In my defense, I did realize that the plants I received would probably be smaller than my seedlings, and I planned to account for that in my field trial. But I needed live plants to make that work.
As soon as I received my dying grafted tomato plants, I called the company that sold them to me. A very nice lady there asked me if the grafts were intact and the stems were still green. They were. She then instructed me to cut off all the dead/dying leaves, water and feed the plants in their pots, and put them in the sun. I confess I laughed out loud at these instructions.
“I’m sorry,” I said. “But I’ve been growing tomatoes for almost 50 years, and I’ve never seen a leafless tomato stem re-grow leaves, especially when its roots have been traveling long distances in bone-dry soil.”
“This is what we’ve been told to tell customers, ma’am,” she replied. “The grafted plants are so vigorous that they are supposed to recover very quickly.”
So I followed her instructions. I cut off all the dead/dying leaves, transplanted the sad little stubs to slightly larger pots, and drenched them thoroughly with the fish emulsion/seaweed mix that I administer to all my seedlings. The company had provided a packet of commercial, non-organic, very potent fertilizer (20-20-20) that I was supposed to mix with water and use, but this would have ruined my little test by not using the same fertilizer, and I’m an organic gardener. Also, I think throwing that potent a chemical fertilizer onto deeply stressed plants is more torture than first aid.
Here’s what the plants looked like when I removed them from their shipping box and placed them in my greenhouse:
Here’s what the plants looked like immediately after their surgery:
Here they are transplanted, watered, and fed after a few days in the greenhouse:
And this is what they looked like about two hours ago:
I think it highly unlikely that these sad brown stubs will sprout new leaves, but I’ll leave them in the greenhouse another week before I give them a decent burial in the compost pile.
I imagine the folks from whom I ordered my plants would offer to send me new plants if I asked, but there’s really no point now. My seed-grown plants are ready for transplanting as soon as our uncharacteristically chilly weather pattern finally breaks down next week.
If folks from the wholesale nursery or the tomato seed company want to respond to this post, I’ll be happy to publish their responses. I’ve made every effort to represent their processes accurately, but if I’ve erred in a supposition somewhere, I’ll be happy to correct it.
Bottom line: I let my enthusiasm for a new plant fad overpower my years of gardening experience. It would have been interesting to see how grafted plants perform, but my seed-grown plants provide all the produce I need every year anyway.
If I discover a local source for healthy grafted vegetables, I might try one some time just to satisfy my curiosity. But I am blessed with rich garden loam, a long growing season, and healthy seed-grown transplants. New-fangled grafted veggies can’t possibly compete with all that.