Oneleaf Onion flowers
(Photo courtesy of NetPS Plant Finder)
Plant Height: 12 inches
Flower Height: 24 inches
Spread: 12 inches
Hardiness Zone: 5a
Other Names: Flowering Onion
Lovely small lavender-pink flowers emerge to form a loose ball above a green mound; attracts butterflies; plant close together for a massed effect;
Oneleaf Onion has masses of beautiful balls of lightly-scented lavender flowers with pink overtones at the ends of the stems from late spring to early summer, which are most effective when planted in groupings. The flowers are excellent for cutting. Its fragrant grassy leaves remain green in colour throughout the season. The fruit is not ornamentally significant.
Oneleaf Onion is an open herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its wonderfully bold, coarse texture can be very effective in a balanced garden composition.
This is a relatively low maintenance plant, and should only be pruned after flowering to avoid removing any of the current season's flowers. It is a good choice for attracting butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. It has no significant negative characteristics.
Oneleaf Onion is recommended for the following landscape applications;
Planting & Growing
Oneleaf Onion will grow to be about 12 inches tall at maturity extending to 24 inches tall with the flowers, with a spread of 12 inches. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 5 years. As this plant tends to go dormant in summer, it is best interplanted with late-season bloomers to hide the dying foliage.
This plant should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is not originally from North America. It can be propagated by multiplication of the underground bulbs.
Disclaimer - This Plant Database is an online catalog representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact your favourite GardenWorks location directly for current availability. It does not include our entire inventory of plants, so be sure to visit GardenWorks to see varieties that may not be represented on this list.