While you may have not heard of this annual by this name, you may be more familiar with Torenia. This annual is a compact, well branched mound that matures at a height of 1 foot. The leaves form little hearts with the blooms looking like snapdragons that have prominent markings on the petals. The major flower color is blue but pink, violet, rose, light blue, and white colors are also available. The flowers also have yellow throats with some of the petals having dark blue to purple markings.
At this point, you may be wondering where the name wishbone flower comes from. The truth is it comes from the two arching yellow stamens that bend over the center of the petals forming a wishbone shape.
When it comes to propagating this annual, this plant is either started by seed or cuttings. While cuttings are not hard to do; only seed propagation will be covered.
To propagate wishbone flower through seed, one must first decide when to plant. You will need to start your seed 10 to 12 weeks prior to your local frost free date. Once you have that date, you can begin to prepare to plant your seed. While you can use a pot or flat to plant your seeds, one of the easiest things to use is peat pot. When it comes to utilizing these pots, you only need to fill them with a good all purpose potting soil. Once the peat pots are filled, place them in a flat so that they are easy to water and transport.
Prior to planting the seed, make sure to water the peat pots until no more water is absorbed. Doing this simple step will keep the seed from being carried down through the soil and getting “planted” too deep.
Since the seed of the wishbone flower is pretty small, it is easier to see where you are planting them by mixing the seeds with sand. Next, sprinkle the sand/seed mixture over the soil surface and mist the soil surface with water.
Place the peat pots in a location that receives indirect sunlight. In 7 to 15 days, you should see evidence of seed germination.
Continue to monitor soil moisture. When you are 2 weeks away from your local frost free date, you can begin hardening off your seedlings.
Once the seedlings have been hardened off, it is time to move them to the garden. Wishbone flowers love a shady place that has moist but not wet soil. For the health of the plants, make sure to space them so that there is 6 to 8 inches between plants.