Why have none of clarkias flowered
Clarkia need a minimum of 4 hours direct sun and cool, moist and well-drained soil. They will not flower in hot weather; they also flower better if the soil isn't rich. They should not be fertilized as this will prompt green growth at the expense of flowers. In fact, some sources say to avoid planting them near plants that fix nitrogen, like the pea family, lupine and clover. That is going overboard with caution but the idea remains. Clarkia don't flower well in high nitrogen soils. Could this be your problem or the hot weather?
During my research they seem to be the same plant by a different name, similar to how the Erysimum Cheiri is also known by the scientific name of a heirs thus Allionii. Thank you for you help!!!
Yes, both names describe the same plant! This article will offer more information on the care of them: https://www.gardeningknowhow.com/ornamental/flowers/clarkia/how-to-grow-clarkia-flowers.htm
If I can get my seeds to grow into the beautiful plant in zone 10b, will they drop their seeds when the flower is finished? Your seeds say “heirloom” so does that mean they don’t have seeds? I am starting a cottage garden and would like perennial native flowers. Thank you
They should drop seeds and reseed every year for you.
Heirloom just means they are open pollinated and were introduced at least 50 years ago. Open pollination means bees or other pollinators are needed to fertilize the plant.