
Most who enjoy four o’clock, Miribilis jalapa, do not grow it intentionally. It tends to sneak into gardens from outside, and then bloom too delightfully to be unwanted. It naturalizes, but not aggressively enough to be a weed. New seedlings develop tuberous roots during their first year. They regenerate to produce abundant seed as early as their second year.
Flowers are supposed to open at 4 o’clock. They may open earlier during warm or humid weather. They remain open through the night, and perhaps for part of the morning. Floral color ranges through white, yellow, orange, red, and many tints of pink. Flowers might be striped or spotted with the other colors. Individual plants might bloom with various colors.
Mature four o’clock plants do not get much taller than three feet. They might sprawl twice as broad. Rich light green foliage is quite full, and obscures unexpectedly soft and lanky stems with knobby nodes. Bloom continues through most of summer, but decreases with increased seed development late in summer. All growth above ground succumbs to frost.


It is pretty but pervasive. Actually, I do not really find scarlet pimpernel to be all that appealing, but this is how someone who reads my gardening column in the Santa Ynes Valley News describes it. Embarrassingly, she requested that I discuss scarlet pimpernel while it was more of a problem back on June 7, but I only recently read the message. By now, it is already dying back for autumn, and is completely deteriorated in dry and hot exposed areas. It will be back next spring, and will bloom with tiny peachy orange flowers so that it can throw tiny but ridiculously abundant seed by summer before anyone notices. Flowers can be other colors in other regions. The sprawling stems can spread more than a foot wide, and can get up to about ten inches high if sprawling over other weeds. The tiny and soft leaves are arranged in…







Baldness was not yet cool while Brent and I were studying horticulture at Cal Poly in San Luis Obispo back in the late 1980s. Nor were hairpieces yet tacky. Consequently, some middle aged men work toupees. As these men aged and grayed, their formerly well matched topees did not.
