What are the propagation methods for daylilies? A detailed guide
The daylily is distributed from southern Europe through northern Asia all the way to Japan, but its main production area is the Yangtze River basin in China. It has wide adaptability, prefers moisture but also tolerates drought, likes sunlight but also tolerates partial shade, and can grow in ordinary soil, but sandy loam that drains well and is rich in humus is best.
New shoots sprout in early spring, the flowering period runs from early June to mid-July, each flower stays open for one day, and the capsules ripen in mid-August, with very few seeds set. The aboveground parts wither in early December, and the perennial roots overwinter in the open ground.
Propagation techniques: Daylilies are mostly propagated by division and by sowing, and can also be propagated by cuttings; in production, division is most often used. Division is mostly carried out in spring when the buds sprout or in autumn after the leaves fall, and the survival rate is high in spring. This method is simple to perform, the plants survive easily, and growth is uniform. For division, the entire mother clump can be dug up and replanted in divisions; alternatively, part of the plants can be dug out from one side of the mother clump to serve as planting stock, while the remainder is left to continue growing. Divisions made in spring can send up stalks and bloom the same year; divisions made in autumn will only send up stalks and bloom the following year.
Division propagation is carried out after the leaves wither or before sprouting in early spring. Dig up the roots and crowns, cut off the dead roots and excess fibrous roots, and divide them. After one division, the plants can be divided again 4-5 years later, and divided plants can bloom the same year.
For transplanting, choose plants that are vigorous, have many flower buds, are of good quality, and are free of pests and diseases. When dividing, the portion dug from the clump must have roots; cut it apart at the shortened stem, remove the old roots, decayed roots and diseased roots, keep the fleshy roots, shorten them appropriately, and then plant. Generally, divide every two to three years to ensure plant vigor.
Generally, each small clump should have 2-3 bud eyes in addition to fleshy roots. Dig holes 30cm wide, apply plenty of base fertilizer, cover with fine soil, press firm and water thoroughly. Divisions made in spring can bloom the same year.
Seed propagation is best done by autumn sowing, and seedlings generally emerge about 4 weeks after sowing. If seeds collected in summer and autumn are sown immediately, they emerge in about 20 days. Seedlings grown from seed bloom after 2 years of cultivation.
For propagation by sowing, the seeds should be stratified in sand in autumn or winter, and after spring sowing they germinate quickly and uniformly. Seedlings generally bloom in 2 years. Young tender flower buds can also be used for cuttings in summer, inserted in vermiculite, and they root in about 1 month and can bloom the following year.