How to Propagate Gardenias? A Detailed Guide to Common Propagation Methods
What are the propagation methods for gardenias? An introduction. The main propagation methods for gardenias are cuttings and layering, and they can also be propagated by seed and division. Zhongdiwang has compiled the propagation methods for gardenias, listed below for netizens' reference. Method 1: Cutting propagation. In the north, from October to November in a warm...
What are the propagation methods for gardenias? An introductionThe main propagation methods for gardenias are cuttings and layering, and they can also be propagated by seed and division. Zhongdiwang has compiledthe propagation methods for gardenias, listed below for netizens' reference.
Method 1: Cutting propagation
In the north, cuttings can be taken from October to November in a greenhouse; in the south, they can be taken anytime from April to the Beginning of Autumn, but the survival rate is highest between summer and autumn. Select healthy 2-year-old branches as cuttings, 10-12 cm long, remove the lower leaves, first dip them in vitamin B12 injection, then insert them into sand. Under conditions of 80% relative humidity and a temperature of 20-24°C, they will root in about 15 days.
If soaked in 20*10^-6 to 50*10^-6 indolebutyric acid for 24 hours, the effect is even better. When the rooted seedlings begin to grow, transplant them or pot them individually; they can bloom after 2 years.
Method 2: Layering propagation
In April, select vigorous branches 25-30 cm long from a 3-year-old mother plant for layering. If there is a three-forked branch, three seedlings can be obtained at once from the fork point. Generally, they will root in 20-30 days, can be separated from the mother plant in June, and by the following spring can be planted separately or potted individually.
Method 3: Seed propagation
This is mostly done in spring. The seeds germinate slowly, sprouting about 1 year after sowing, and blooming after 3-4 years. Potted plants in the north seldom produce seeds.
Notes on gardenia propagation:For cuttings, use 15 cm long softwood shoots during the plum rain season and insert them into a seedbed; they root in 10-12 days. For layering, select 2-year-old branches 20-25 cm long in April, bury them in soil, keep them moist; they root in about 30 days, separate them from the mother plant in summer, and plant them separately the following spring. For transplanting seedlings or potting, spring is best, carried out during the plum rain season, and a soil ball is required.
During the growing season, keep the soil moist; water more during the flowering period and midsummer. Fertilize once a month, and apply an extra dose of phosphorus and potassium fertilizer once before flowering. In early spring of the following year, prune and shape the plant, and promptly cut off dead branches and leggy branches.
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