Annual
Matthiola longipetala. Spindly and insignificant by day, it is potently fragrant at dusk! Single, four-petalled flowers are a pale lilac. Best grown either in out-of-the-way spots or with Virginian Stock to combine their complimentary growing habits, colours, and fragrances. Shear back once for continuing scent from July until frost. Stocks prefer cool temperatures, but need full sun to perform well. Once the soil heats up in summer, plants tend to die back. Provide ample water, but very well drained soil. Sow Evening Scented stocks seeds on the surface of the soil. Many sources still use the previous Latin name for this plant, M. bicornis. If given some support, this branching plant will grow to 45cm (18") tall. If grown in containers, it will probably not grow upright.
West Coast Seeds Evening Scented Stock Stock Seeds, Per Package
Starting
Stocks are highly susceptible to damping off. Sow on the surface of vermiculite under bright light, with some ventilation nearby. Water only from below. Pot on into sterilized potting soil once plants are large enough to handle, and space them in the garden at 15-23cm (6-9″) apart.
Timing
Sow indoors 6-8 weeks before last frost, or direct sow outdoors after last frost. Seeds take 3-20 days to germinate at an ideal soil temperature of 12-18°C (55-65°F).
Growing
Moist, well-drained, fertile soil is best, with a neutral to slightly alkaline pH. Pinch out side shoots for taller plants. Crowding plants encourages earlier blooming. Water regularly and feed lightly every month.
