Yesterday got a bag of potting soil during senior coronavirus hours at Costco, so this morning I up-potted the three apple seedlings and two of the peppers, from their six-pack cells into individual larger pots with actual potting soil. They had good root systems. My theory, borne out by experience but never tested, is that when the roots reach the sides and bottom of the container and start winding around, the plant growth slows down and it doesn't thrive.
The apple seedlings look surprisingly healthy, considering I don't know what I'm doing. I wonder if, on being in real sunshine, the red coloration will darken.
Background info:
The apple seedlings are Redlove™ Calypso™ X Golden Sentinel.
So far, Calypso™ has red flesh and is sort of cranapple flavored. Quite tart and crisp. Smaller than my other apples, although first year fruits are usually not as large or good as those from more mature trees.
Golden Sentinel is a Canadian development, a cross of ‘Discovery’ X (cross of Wijcik Spur MacIntosh x Delicious). Discovery is an English cross of . Worcester Pearmain with, possibly, Beauty of Bath, reported to have a bit of a strawberry flavor and red coloration that sometimes bleeds into the flesh. So Golden Sentinel has some good flavor genetics. I like it although it seems to be biennial bearing.
My pipe dream is to create a columnar apple tree with reddish leaves, pink flowers, red flesh apples that are sweeter than Calypso™ but more fragrant than Golden Sentinel, which I think is a good apple as is. Since two of the seedlings have reddish leaves, I might be part way there. They have a 50% chance of columnar trait. According to the Canada Plant Inspection Agency, Golden Sentinel has shorter internodes compared to McIntosh Wicjik, so it’s possible that I might see that in seedlings although I don’t know if I would recognize it. I try to put these on a top shelf where they get more sun, because I don’t know if the wavelength of the LED lights is suitable for red-pigmented leaves.